If you want to get substantially better fuel economy out of a car or truck, your options for doing so are somewhat limited. You can lighten the vehicle, but doing so is likely to reduce overall strength or substantially increase the price. You can add a hybrid drivetrain, but that adds weight, increases complexity and adds to the price. You can downsize the engine, but few drivers are willing to accept a significant reduction in power just to gain a few more mpgs. There’s another choice, though, and it’s one that’s being rapidly embraced by manufacturers as the best and most cost-effective solution: downsize the engine, and then turbocharge it.
In the old days, turbos had a questionable reputation for reliability. Formula One engines of the 1980’s, for example, were small displacement, turbocharged four-cylinders that ran massive amounts of boost to create power. Calling these engines fragile is an understatement, and spectacular engine failures were common. Even on road cars, turbos often experienced bearing problems related to oil circulation, and engine failure was far more common than on less stressed, normally aspirated cars.
Not so with the new generation of turbocharged cars. Ford’s EcoBoost, for example, runs a modest amount of boost, but pumps the additional air into an engine that already has high compression and gasoline direct injection. High compression and turbocharging used to be a recipe for disaster, but today’s knock-sensing technology makes such a setup possible. The end result is more power, plus better fuel economy, from a smaller displacement engine.
Turbo and component supplier Honeywell sees the writing on the wall. Their vice president of engineering, Steve McKinley, summed it up by saying, “Engine downsizing coupled with turbos is the quickest way to make a significant improvement in the overall fuel efficiency of the U.S. automotive portfolio while maintaining performance levels.” In other words, now would probably be a very good time to invest in Honeywell stock.
GM agrees with this philosophy, too, and offers a 1.4-liter turbo option for their Cruze compact sedan. The upcoming Sonic will have a forced-induction engine choice, too, and don’t be surprised to see turbocharged fours replacing V-6s and I-6s throughout many manufacturer’s product lines.
More power from less gas? What’s not to like about that?
Source: Left Lane News
Showing posts with label Fuel Saving Tips. Show all posts
Showing posts with label Fuel Saving Tips. Show all posts
Friday, August 26, 2011
Monday, August 22, 2011
Make better use of higher-octane fuel, stop-start
As the industry pushes for better fuel economy, it's strange that two known mileage boosters -- higher-octane gasoline and stop-start technology -- aren't being exploited to their full potential.
There are obstacles to getting the full benefit from either, but those obstacles should be surmountable.
-- Octane: Higher octane improves combustion by allowing a higher compression ratio. But powertrain engineers can't squeeze the most compression out of regular gasoline because octane levels at the pump fluctuate. (That's why the pad you push to select a grade of gasoline at the pump hedges by saying "minimum octane rating.")
Greg Johnson, Lincoln brand powertrain manager, puts it this way: "We're limited by what is the mean octane rating of the fuel we're developing for."
Fuel-saving technologies such as turbocharging would be more productive if regular gasoline consistently had octane levels at the high end of its range, according to Stephen Ross, combustion technical leader at Ford Motor Co.
As the industry aims for 54.5 mpg corporate average fuel economy by 2025, the feds need to bring automakers and oil companies together to achieve consistent octane levels.
-- Stop-start: The problem here is regulatory: The EPA test for calculating CAFE doesn't measure stop-start benefits, and that has slowed penetration of stop-start systems. A stop-start system shuts off the engine when a car is stopped and restarts it when the driver releases the brake pedal.
Stop-start boosts fuel economy 8 to 10 percent, according to Mike Omotoso, senior manager for global powertrains at J.D. Power and Associates.
Brett Smith, co-director of the manufacturing, engineering and technology group at the Center for Automotive Research in Ann Arbor, Mich., says the federal government has said it intends to give a credit for stop-start systems in the 2017-25 rules.
That makes sense. After all, automakers get credits for using greener air-conditioning systems. Why not add a few mpg to the CAFE score of a vehicle with stop-start?
There are obstacles to getting the full benefit from either, but those obstacles should be surmountable.
-- Octane: Higher octane improves combustion by allowing a higher compression ratio. But powertrain engineers can't squeeze the most compression out of regular gasoline because octane levels at the pump fluctuate. (That's why the pad you push to select a grade of gasoline at the pump hedges by saying "minimum octane rating.")
Greg Johnson, Lincoln brand powertrain manager, puts it this way: "We're limited by what is the mean octane rating of the fuel we're developing for."
Fuel-saving technologies such as turbocharging would be more productive if regular gasoline consistently had octane levels at the high end of its range, according to Stephen Ross, combustion technical leader at Ford Motor Co.
As the industry aims for 54.5 mpg corporate average fuel economy by 2025, the feds need to bring automakers and oil companies together to achieve consistent octane levels.
-- Stop-start: The problem here is regulatory: The EPA test for calculating CAFE doesn't measure stop-start benefits, and that has slowed penetration of stop-start systems. A stop-start system shuts off the engine when a car is stopped and restarts it when the driver releases the brake pedal.
Stop-start boosts fuel economy 8 to 10 percent, according to Mike Omotoso, senior manager for global powertrains at J.D. Power and Associates.
Brett Smith, co-director of the manufacturing, engineering and technology group at the Center for Automotive Research in Ann Arbor, Mich., says the federal government has said it intends to give a credit for stop-start systems in the 2017-25 rules.
That makes sense. After all, automakers get credits for using greener air-conditioning systems. Why not add a few mpg to the CAFE score of a vehicle with stop-start?
Sunday, January 23, 2011
EPA approves E15 fuel for use in 2001-2006 cars
Automakers to ask courts to overturn rule
WASHINGTON – Gasoline can be sold with as much as 15 percent ethanol – up from the current 10 percent limit - in vehicles made between 2001 and 2006, the U.S. Environmental Protection Agency said today.
The Obama administration's announcement dealt another defeat on ethanol concentration to automakers, who said they would probably contest the decision in court.
Last October, the EPA approved use of so-called E-15 gasoline for cars, SUVs and light pickup trucks made during the 2007 model year and later.
EPA Administrator Lisa Jackson said today that use of E-15 gasoline would “allow more home-grown fuels in America's vehicles” without harm to emissions control equipment in cars and light trucks made since 2001.
Jackson said there had been “thorough testing” of the fuel by the U.S. Department of Energy.
EPA also said it will ensure that E-15 gasoline is properly labeled at the gas pump to prevent it from being pumped into vehicles that might be harmed.
An international automaker group said the government hasn't done enough testing to ensure that vehicles fueled with E-15 gasoline would be safe.
“All the data is not in to prove that E-15 won't have a negative effect on any vehicles,” said Mike Stanton, president of the Association of International Automobile Manufacturers.
Automakers seek court relief
He also expressed concern that, even with labels at the gas pump, consumers might accidentally fuel cars that haven't been approved for E-15 fuel.
Last month, U.S. carmakers and engine manufacturers asked a federal appeals court to require the EPA to reconsider its earlier ethanol decision on cars made since 2007.
Stanton said the lawsuit would probably be expanded to include vehicles covered by today's EPA decision.
There are more than 150 million vehicles made since 2001 on U.S. roads, and they account for 74 percent of vehicle gasoline consumption, EPA spokesman Cathy Milbourn said in an interview.
By 2014, there will likely be 187 million cars and light trucks made since 2001, and they will account for 85 percent of gasoline consumption, she said.
The decision today was hailed by a group of ethanol makers called Growth Energy.
“Increased use of ethanol will strengthen our energy security, create U.S. jobs and improve the environment,” said Tom Buis, CEO of Growth Energy.
The EPA did not grant approval today for E-15 gasoline use in motorcycles, heavy-duty vehicles or non-road engines because testing has not yet determined it is safe, the agency said in a statement.
WASHINGTON – Gasoline can be sold with as much as 15 percent ethanol – up from the current 10 percent limit - in vehicles made between 2001 and 2006, the U.S. Environmental Protection Agency said today.
The Obama administration's announcement dealt another defeat on ethanol concentration to automakers, who said they would probably contest the decision in court.
Last October, the EPA approved use of so-called E-15 gasoline for cars, SUVs and light pickup trucks made during the 2007 model year and later.
EPA Administrator Lisa Jackson said today that use of E-15 gasoline would “allow more home-grown fuels in America's vehicles” without harm to emissions control equipment in cars and light trucks made since 2001.
Jackson said there had been “thorough testing” of the fuel by the U.S. Department of Energy.
EPA also said it will ensure that E-15 gasoline is properly labeled at the gas pump to prevent it from being pumped into vehicles that might be harmed.
An international automaker group said the government hasn't done enough testing to ensure that vehicles fueled with E-15 gasoline would be safe.
“All the data is not in to prove that E-15 won't have a negative effect on any vehicles,” said Mike Stanton, president of the Association of International Automobile Manufacturers.
Automakers seek court relief
He also expressed concern that, even with labels at the gas pump, consumers might accidentally fuel cars that haven't been approved for E-15 fuel.
Last month, U.S. carmakers and engine manufacturers asked a federal appeals court to require the EPA to reconsider its earlier ethanol decision on cars made since 2007.
Stanton said the lawsuit would probably be expanded to include vehicles covered by today's EPA decision.
There are more than 150 million vehicles made since 2001 on U.S. roads, and they account for 74 percent of vehicle gasoline consumption, EPA spokesman Cathy Milbourn said in an interview.
By 2014, there will likely be 187 million cars and light trucks made since 2001, and they will account for 85 percent of gasoline consumption, she said.
The decision today was hailed by a group of ethanol makers called Growth Energy.
“Increased use of ethanol will strengthen our energy security, create U.S. jobs and improve the environment,” said Tom Buis, CEO of Growth Energy.
The EPA did not grant approval today for E-15 gasoline use in motorcycles, heavy-duty vehicles or non-road engines because testing has not yet determined it is safe, the agency said in a statement.
Monday, January 3, 2011
Getting to 35.5: The ABCs of mpg
When gasoline prices blew past $3 a gallon last week, the highest level in 26 months, it was tough news for consumers but a marketing boost for automakers trying to sell pricey new technology needed to meet tougher fuel economy rules that took effect Jan. 1.
The new era will raise fleet fuel economy standards, in annual steps, to 35.5 mpg for 2016 models, a 30 percent rise from the 27.3 mpg of the 2011 model year.
The first step is a total fleet average of 30.1 mpg for 2012 models, which officially can go on sale this week. Automakers already are accelerating their use of costly lightweight materials and advanced powertrains on the way to 2016.
The latest data from the National Highway Traffic Safety Administration for the 2010 model year show that some companies -- including Toyota, Honda, Hyundai-Kia and Mazda -- are at or above the 2012 standard and are well positioned with their product mix.
For others below the 2012 standard -- such as Chrysler, BMW, Daimler and Porsche -- the requirements will mean an acceleration of steps to slash weight, shuffle products and shrink powertrains.
Those changes don't come cheap. And when gasoline prices are low, the pricey technology is a tough sell.
Transitioning to the new standards is "a tough task, but we're facing it as grown-ups," said Rick Spina, who leads development of full-sized trucks for General Motors Co.
Spina said GM plans to trim 500 pounds from its light trucks by 2016, and by the early 2020s, might need to cut as much as 1,000 pounds per truck.
"We're going to do everything we can to keep the customer from realizing we've had to make changes in a fundamental way," Spina said.
The industry will meet the CAFE challenge with some sophisticated technology: eight-speed automatic transmissions, variable valve timing, electric power steering, stop-start systems, turbochargers, direct injection, hybrid systems and diesels, primarily in light trucks. The technologies are migrating into smaller segments, and smaller engines are moving into larger vehicles.
For 2016 models, the standard for cars rises to 39.5 mpg. But the light-trucks standard for 2016 models -- 29.8 mpg -- will be the greatest challenge. Automakers are scrambling to strip hundreds of pounds from future pickups without sacrificing strength or towing capability.
Ford, like GM, has only one design cycle to make significant changes to its pickup line. And Ford is working quickly to revamp its engine and model offerings.
Next month, Ford will launch a turbocharged engine in the F-150 alongside the recently introduced, naturally aspirated 3.7-liter V-6. 5.0- and 6.2-liter V-8 gasoline engines. Ford says the F-150's turbo, based on the 3.5-liter, V-6 direct injection turbo engine in the Ford Taurus SHO sedan, will still meet truck durability requirements.
Overall, Ford says, fuel economy will improve 20 percent across the F-150 range.
Ford says it will offer EcoBoost turbocharged engines with direct injection on 90 percent of its North American cars and trucks within a couple of years.
Ford will offer four-cylinder EcoBoost engines on smaller vehicles such as the Focus ST, due in 2012. In addition, the 2011 Explorer initially has two engines available, a normally aspirated 3.5-liter V-6 and the new 2.0-liter EcoBoost inline four-cylinder engine. Each of the engines is expected to provide a 30 percent boost in fuel economy over the outgoing body-on-frame Explorers.
Here are other ways automakers are improving fuel efficiency to get to the 2012-model requirements of 25.7 mpg for light trucks, 33.8 mpg for cars and 30.1 mpg for fleets. NHTSA's fuel-economy figures for the 2010 model year indicate how far they have to go.
Chrysler: Help from Fiat
(2010: Trucks, 24.1; Cars, 28.0)
Under the management of Fiat and helped by its technical know-how, Chrysler Group promises a fleet of more fuel-efficient cars. But most of them will not hit the market until 2012.
Chrysler's goal, outlined in its Nov. 4, 2009 business presentation, is to improve fleet fuel economy 25 percent by the end of 2014.
The Pentastar V-6, which first appeared last year in the 2011 Jeep Grand Cherokee, is replacing seven V-6 engine families over a two-year period. The Pentastar alone will improve Chrysler Group's overall fuel economy by 2 mpg, according to company spokesman Vince Muniga. The Pentastar will account for about 40 percent of all Chrysler Group engines by 2014.
Beyond that, the company has announced plans to use a Fiat-designed six-speed dual clutch transmission and an eight-speed automatic for larger vehicles designed by supplier ZF Friedrichshafen.
Starting with the 2012 Fiat 500 minicar, Chrysler will begin using Fiat's MultiAir technology, which improves performance and fuel economy by regulating the intake valves. Fiat says the system improves fuel economy by 10 percent and torque by 15 percent compared with the same 1.4-liter four-cylinder engine without the system.
BMW: 8-speeds, smaller lineup
(2010: Trucks, 23.6; Cars, 28.7)
BMW has spent nearly $1.6 billion this year on fuel-saving technology. And it's about to get a complete makeover with multispeed transmissions, smaller crossovers and downsized engines.
Edmunds.com reports that BMW will have seven models with eight-speed transmissions in the 2011 model year, up from two in the 2010 model year. It also will increase the number of turbochargers from six in the 2009 to 15 this year.
BMW also is adding smaller products and engines. It will bring a new front-wheel-drive family of cars in a class known as UKL, a German abbreviation for lower-compact-class cars.
"It will be a relatively big segment because we have several body styles," Ian Robertson, BMW AG board member for sales and marketing, told Automotive News last fall.
The vehicles will be launched in the next few years, and will come to the United States with four-cylinder engines.
And BMW will concentrate on small crossovers in the next 18 months with a redesigned X3 and the new X1.
Both are based on the redesigned 3-series sedan, which will arrive in 2012 with a twin-turbocharged, direct-injection, four-cylinder gasoline engine which it has used in other markets besides North America.
In 2013, a new sub brand of electric and hybrid vehicles being developed by BMW's Project i group will debut.
EVERY YEAR, A LITTLE TOUGHER
Federal fleet-average mpg standards, by model year
2012 2013 2014 2015 2016
Cars 33.8 34.7 36 37.7 39.5
Light trucks 25.7 26.4 27.3 28.5 29.8
Fleet 30.1 31.1 32.2 33.8 35.5
Daimler: 4 cylinders and small cars
(2010: Trucks, 21.5; Cars: 26.9)
Daimler AG nearly doubled its spending on fuel efficiency on its Mercedes-Benz vehicles in 2010, to $1.3 billion.
In Europe, Mercedes is rolling out an S-class sedan with a four-cylinder engine, a first in the model's 60-year history, and may add the vehicle for North America, dealers say.
Mercedes will ship three compact front-wheel-drive vehicles to the United States starting in 2012, including one with an alternative drivetrain.
Either a compact SUV or a coupe derived from the B-class platform will go on sale first. Neither will wear a B-class badge.
Mercedes will add an electric compact van. It's considering a fuel-cell model or an electric with a range-extending gasoline engine. Details aren't final.
Like BMW, Mercedes will also increase the use of multispeed transmissions. According to press reports, it is developing a nine-speed automatic (dubbed 9G-Tronic) that will debut in the 2012 S Class sedan.
Reuters contributed to this report
2010 MODEL YEAR CAFE RANKINGS
Domestic passenger cars
Rank/manufacturer mpg
1. Tesla 346.8
2. Toyota 36.4
3. Nissan 34.8
4. Honda 34.7
5. Ford 32.3
6. Mazda 31.4
7. GM 30.6
8. Chrysler 28.0
Imported passenger cars
Rank/manufacturer mpg
1. Toyota 44.4
2. Honda 40.9
3. Kia 36.6
4. Hyundai 36.0
5. Mazda 34.5
Light trucks
Rank/manufacturer mpg
1. Hyundai 30.0
2. Subaru 29.9
3. Mitsubishi 28.3
4. Honda 26.9
5. Mazda 26.6
9. GM 25.4
12. Chrysler 24.1
13. Ford 24.0
The EPA calculates CAFE based on gas mileage estimates for each car in an automaker's lineup and the number of those cars produced that year.
The lineups are split into three groups: Domestic passenger cars, which includes cars built using mostly domestically sourced parts, for either an American or foreign nameplate; imported passenger cars, built mostly with parts from abroad; and light trucks, which includes everything from pickups and minivans to crossover SUVs, no matter where their parts come from.
Source: NHTSA, EPA
The new era will raise fleet fuel economy standards, in annual steps, to 35.5 mpg for 2016 models, a 30 percent rise from the 27.3 mpg of the 2011 model year.
The first step is a total fleet average of 30.1 mpg for 2012 models, which officially can go on sale this week. Automakers already are accelerating their use of costly lightweight materials and advanced powertrains on the way to 2016.
The latest data from the National Highway Traffic Safety Administration for the 2010 model year show that some companies -- including Toyota, Honda, Hyundai-Kia and Mazda -- are at or above the 2012 standard and are well positioned with their product mix.
For others below the 2012 standard -- such as Chrysler, BMW, Daimler and Porsche -- the requirements will mean an acceleration of steps to slash weight, shuffle products and shrink powertrains.
Those changes don't come cheap. And when gasoline prices are low, the pricey technology is a tough sell.
Transitioning to the new standards is "a tough task, but we're facing it as grown-ups," said Rick Spina, who leads development of full-sized trucks for General Motors Co.
Spina said GM plans to trim 500 pounds from its light trucks by 2016, and by the early 2020s, might need to cut as much as 1,000 pounds per truck.
"We're going to do everything we can to keep the customer from realizing we've had to make changes in a fundamental way," Spina said.
The industry will meet the CAFE challenge with some sophisticated technology: eight-speed automatic transmissions, variable valve timing, electric power steering, stop-start systems, turbochargers, direct injection, hybrid systems and diesels, primarily in light trucks. The technologies are migrating into smaller segments, and smaller engines are moving into larger vehicles.
For 2016 models, the standard for cars rises to 39.5 mpg. But the light-trucks standard for 2016 models -- 29.8 mpg -- will be the greatest challenge. Automakers are scrambling to strip hundreds of pounds from future pickups without sacrificing strength or towing capability.
Ford, like GM, has only one design cycle to make significant changes to its pickup line. And Ford is working quickly to revamp its engine and model offerings.
Next month, Ford will launch a turbocharged engine in the F-150 alongside the recently introduced, naturally aspirated 3.7-liter V-6. 5.0- and 6.2-liter V-8 gasoline engines. Ford says the F-150's turbo, based on the 3.5-liter, V-6 direct injection turbo engine in the Ford Taurus SHO sedan, will still meet truck durability requirements.
Overall, Ford says, fuel economy will improve 20 percent across the F-150 range.
Ford says it will offer EcoBoost turbocharged engines with direct injection on 90 percent of its North American cars and trucks within a couple of years.
Ford will offer four-cylinder EcoBoost engines on smaller vehicles such as the Focus ST, due in 2012. In addition, the 2011 Explorer initially has two engines available, a normally aspirated 3.5-liter V-6 and the new 2.0-liter EcoBoost inline four-cylinder engine. Each of the engines is expected to provide a 30 percent boost in fuel economy over the outgoing body-on-frame Explorers.
Here are other ways automakers are improving fuel efficiency to get to the 2012-model requirements of 25.7 mpg for light trucks, 33.8 mpg for cars and 30.1 mpg for fleets. NHTSA's fuel-economy figures for the 2010 model year indicate how far they have to go.
Chrysler: Help from Fiat
(2010: Trucks, 24.1; Cars, 28.0)
Under the management of Fiat and helped by its technical know-how, Chrysler Group promises a fleet of more fuel-efficient cars. But most of them will not hit the market until 2012.
Chrysler's goal, outlined in its Nov. 4, 2009 business presentation, is to improve fleet fuel economy 25 percent by the end of 2014.
The Pentastar V-6, which first appeared last year in the 2011 Jeep Grand Cherokee, is replacing seven V-6 engine families over a two-year period. The Pentastar alone will improve Chrysler Group's overall fuel economy by 2 mpg, according to company spokesman Vince Muniga. The Pentastar will account for about 40 percent of all Chrysler Group engines by 2014.
Beyond that, the company has announced plans to use a Fiat-designed six-speed dual clutch transmission and an eight-speed automatic for larger vehicles designed by supplier ZF Friedrichshafen.
Starting with the 2012 Fiat 500 minicar, Chrysler will begin using Fiat's MultiAir technology, which improves performance and fuel economy by regulating the intake valves. Fiat says the system improves fuel economy by 10 percent and torque by 15 percent compared with the same 1.4-liter four-cylinder engine without the system.
BMW: 8-speeds, smaller lineup
(2010: Trucks, 23.6; Cars, 28.7)
BMW has spent nearly $1.6 billion this year on fuel-saving technology. And it's about to get a complete makeover with multispeed transmissions, smaller crossovers and downsized engines.
Edmunds.com reports that BMW will have seven models with eight-speed transmissions in the 2011 model year, up from two in the 2010 model year. It also will increase the number of turbochargers from six in the 2009 to 15 this year.
BMW also is adding smaller products and engines. It will bring a new front-wheel-drive family of cars in a class known as UKL, a German abbreviation for lower-compact-class cars.
"It will be a relatively big segment because we have several body styles," Ian Robertson, BMW AG board member for sales and marketing, told Automotive News last fall.
The vehicles will be launched in the next few years, and will come to the United States with four-cylinder engines.
And BMW will concentrate on small crossovers in the next 18 months with a redesigned X3 and the new X1.
Both are based on the redesigned 3-series sedan, which will arrive in 2012 with a twin-turbocharged, direct-injection, four-cylinder gasoline engine which it has used in other markets besides North America.
In 2013, a new sub brand of electric and hybrid vehicles being developed by BMW's Project i group will debut.
EVERY YEAR, A LITTLE TOUGHER
Federal fleet-average mpg standards, by model year
2012 2013 2014 2015 2016
Cars 33.8 34.7 36 37.7 39.5
Light trucks 25.7 26.4 27.3 28.5 29.8
Fleet 30.1 31.1 32.2 33.8 35.5
Daimler: 4 cylinders and small cars
(2010: Trucks, 21.5; Cars: 26.9)
Daimler AG nearly doubled its spending on fuel efficiency on its Mercedes-Benz vehicles in 2010, to $1.3 billion.
In Europe, Mercedes is rolling out an S-class sedan with a four-cylinder engine, a first in the model's 60-year history, and may add the vehicle for North America, dealers say.
Mercedes will ship three compact front-wheel-drive vehicles to the United States starting in 2012, including one with an alternative drivetrain.
Either a compact SUV or a coupe derived from the B-class platform will go on sale first. Neither will wear a B-class badge.
Mercedes will add an electric compact van. It's considering a fuel-cell model or an electric with a range-extending gasoline engine. Details aren't final.
Like BMW, Mercedes will also increase the use of multispeed transmissions. According to press reports, it is developing a nine-speed automatic (dubbed 9G-Tronic) that will debut in the 2012 S Class sedan.
Reuters contributed to this report
2010 MODEL YEAR CAFE RANKINGS
Domestic passenger cars
Rank/manufacturer mpg
1. Tesla 346.8
2. Toyota 36.4
3. Nissan 34.8
4. Honda 34.7
5. Ford 32.3
6. Mazda 31.4
7. GM 30.6
8. Chrysler 28.0
Imported passenger cars
Rank/manufacturer mpg
1. Toyota 44.4
2. Honda 40.9
3. Kia 36.6
4. Hyundai 36.0
5. Mazda 34.5
Light trucks
Rank/manufacturer mpg
1. Hyundai 30.0
2. Subaru 29.9
3. Mitsubishi 28.3
4. Honda 26.9
5. Mazda 26.6
9. GM 25.4
12. Chrysler 24.1
13. Ford 24.0
The EPA calculates CAFE based on gas mileage estimates for each car in an automaker's lineup and the number of those cars produced that year.
The lineups are split into three groups: Domestic passenger cars, which includes cars built using mostly domestically sourced parts, for either an American or foreign nameplate; imported passenger cars, built mostly with parts from abroad; and light trucks, which includes everything from pickups and minivans to crossover SUVs, no matter where their parts come from.
Source: NHTSA, EPA
Monday, August 16, 2010
Ford: F-150 delivers the mpg buyers want
"Fuel economy is the No. 1 unmet need" for owners of full-sized pickups, said Scott, Ford Motor Co. truck group marketing manager, at a media event last week.
Citing Ford research, he said 70 percent want better fuel economy and about a third of those say they would change brands for a "significant improvement" in mpg.
Ford is replacing the F-150's entire engine lineup for the 2011 model year. A V-6 will be standard. Also available: two V-8s and an EcoBoost V-6 with turbocharging and direction injection.
Ford says the new lineup will be 20 percent more fuel efficient than the current lineup of three V-8s. Currently, the standard engine is a 4.6-liter V-8 that gets 19 mpg on the highway.
Ford has not released EPA mileage figures for the new engine lineup.
Fuel economy is more important to buyers now than it was before the 2008 price spike, Scott said. And Ford still believes gasoline will jump to $4 to $4.50 a gallon in 2013 or 2014, he said.
Gasoline peaked at a national average of $4.05 a gallon in July 2008. Last week, it was $2.74.
Dealers can order 2011 models in October. Sales of vehicles with three of the four engines begin in December. The EcoBoost engine will be available in the first quarter of 2011.
THE F-150'S NEW ENGINE LINEUP
• 3.7-liter V-6, standard
• 3.5-liter EcoBoost V-6
• 5.0-liter V-8
• 6.2-liter V-8
Source: Ford Motor Co.
Thursday, March 11, 2010
injecter cleaners
would it be recommended to run the injection cleaners through the gas tank or should i manually do it
Response 1) I drive a '89 Dakota, purchased new, with 273,000 miles on it. I've added injector cleaner once or twice a year and have never had a problem.
Response 2) I clean my injectors twice a year. However, I know the Complete maintenance history and always use the same brand and grade of fuel. If this is a used car and you have no idea of it's history I recommend that you use a cleaner that goes directly to the Injector/s. These do a much better job than an additive to your fuel. They contain Propane and ARE under pressure. Follow the Directions CAREFULLY! And note, Injectors DO fail. They are an electrical component unless you have a True Diesel. Then they run off a camshaft.
Response 2) I clean my injectors twice a year. However, I know the Complete maintenance history and always use the same brand and grade of fuel. If this is a used car and you have no idea of it's history I recommend that you use a cleaner that goes directly to the Injector/s. These do a much better job than an additive to your fuel. They contain Propane and ARE under pressure. Follow the Directions CAREFULLY! And note, Injectors DO fail. They are an electrical component unless you have a True Diesel. Then they run off a camshaft.
Sunday, November 15, 2009
Some Ways to Improve Fuel Efficiency
More and more people are now in search for fuel efficient cars. While in the past, car enthusiasts pride on how fast their cars can go and how huge their engines are, nowadays, better mileage and fuel efficiency has become everyone’s priority. Saving fuel is a difficult feat. But since transport is a necessity, how can you save fuel while still enjoying the car? What things can you do to be able to make sure that your car burn fuel very efficiently?
* Its good policy to know how fuel efficient your car is so keep tabs on how much fuel you put in your car each time you fill up at the pump and compare that to the mileage you are getting. This way, if there is a drop in previous fuel efficiency you can then consult your mechanic and tackle the issue early on.
You can also consider putting additives into your gas tank. There are several brands of additives now available in the market and some of them claim to successfully increase a car’s fuel efficiency up to ten and twenty percent. These additives are non toxic and non-fossil based and will give your car a longer driving potential, since it will make your car more fuel efficient.
* Check the Read Entire Article
Monday, September 1, 2008
I want to change Air Fuel ratio on my 1996 4.6L SFI SOHC engine, How??
Firestorm Spark Plug Question:
I want to change Air Fuel ratio on my 1996 4.6L SFI SOHC engine, How?? I want to use a new spark plug (plazma) that is supposed to give me no emissions and i have to change the air fuel ratio from 14:7 to 30:1 for the plugs to work.
Answer:
I see a couple of ways. 1) you can install an aftermarket chip/module: computer chip or Module that has been re-calibrated to what you want. This can be done at a dyno shop also. 2) install a stand alone fuel management system that will allow you to change it anyway you want (expensive).
If these new plugs did what they say they can do you would think all the car companies that are struggling to sell cars would be jumping all over the idea.... but they are not???? I reality you do not need a new a new spark plug in order to change you fuel ratio. Changing your fuel ratio does get you better fuel mileage but at the cost of poor performance such as sluggish acceleration and less pulling power.
reference: http://www.atraderz.com/
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