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3.5-liter EcoBoost V6

5.0-liter V8
All-new engine lineup boost overall fuel efficiency for Ford's top seller

Ford's F-150 is the best selling vehicle in America and has been for the past three decades. Thus, any big changes that effect the fuel efficiency of Ford's massive full-size trucks has an impact on hundreds of thousands of drivers' wallets each year.

Thus is the case with the powertrain lineup for the 2011 F-150. With looming CAFE regulations requiring drastically improved fuel efficiency from both cars and trucks, Ford is jumping the gun with an all-new engine lineup consisting of two V6 engines (one naturally aspirated, one turbocharged) and two V8 engines. To those that follow the auto industry, most of these engines should sound familiar to you.

The new base 3.7-liter V6 is used in a variety of Ford vehicles (Mustang, Lincoln MKX, Lincoln MKT) and produces 300 hp @ 6,500 rpm and 275 lb-ft of torque @ 4,500 rpm (max towing capacity 6,100 pounds) when used in the F-150.

The new 5.0-liter V8 first showed up in the 2011 Mustang GT, but is now making its way to the F-150. Naturally, the engine has been upgraded to handle heavy loads and manages to generate 360 hp @ 5,500 rpm and 380 lb-ft @ 4,250 rpm (max towing capacity 9,800 pounds).

The 6.2-liter V8 has already seen duty in the 2010 F-150 SVT Raptor, but is now filtering its way down to the rest of the lineup. The engine develops 411 hp @ 5,500 rpm and 434 lb-ft @ 4,500 (max tow capacity 11,300).

The last new engine is the wonderful 3.5-liter EcoBoost V6 that is used in the Taurus SHO and Flex. Ford is not giving official power/torque ratings for this engine yet, but it generates 365 hp @ 5,500 rpm and 350 lb-ft @ 1,500 rpm in the Taurus SHO. Best of all, the engine runs on regular unleaded.

According to the Detroit News, the EcoBoost engine will be a a step above the 5.0-liter V8 in price and will equal the towing capacity of the 6.2-liter V8 engine option.

According to Ford, with these new engines and standard six-speed automatic transmissions across the board, fuel economy will be increased by at least 20 percent compared to comparable 2010 F-150 models. The Detroit News also says that some models may achieve 24 mpg.

“Truck customers demand an engine that delivers outstanding low-speed torque to help tow or move heavy payloads, and sustained high-load, low-speed operation is a key attribute they look for,” said Barb Samardzich, vice president of Powertrain Engineering. “The engine lineup for the 2011 Ford F-150 has been tuned specifically for truck operation needs and optimized for fuel economy. The result is a lineup that delivers class-leading towing and payload capability with outstanding horsepower, torque and fuel economy.”

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RE: Yes!!!
By Spuke on 8/12/2010 3:03:10 PM , Rating: 2
If lower octane is used, the care adjusts the timing if it senses knocking in the engine, resulting in lower fuel efficiency.
Higher octane gas doesn't improve fuel efficiency. The higher the octane, the more knock resistance you get. You don't get anymore power nor do you get better fuel efficiency. And your engine must be tuned to take advantage of the extra octane or your just pissing money away. I believe the Tacoma's only require 87 octane.

RE: Yes!!!
By SilthDraeth on 8/12/2010 3:17:08 PM , Rating: 2
The engine in the Toyota 05 and up Tacoma's and Corollas call for premium fuel and are vvti. Yes, octane gives more knock resistance. Engines with higher compression ratios are more likely to knock on lower octane fuels.

You didn't contradict anything I stated, so I am not sure why you quoted me. Though you elaborated on the knock resistance.

RE: Yes!!!
By Jeffk464 on 8/12/2010 5:17:42 PM , Rating: 2
nope, my taco said 87 octane and thats all I have ever put in it. 4.0 engine.

RE: Yes!!!
By SilthDraeth on 8/13/2010 1:52:44 AM , Rating: 2
I know mine said premium. I just looked it up and there were different manuals printed.

RE: Yes!!!
By knutjb on 8/12/2010 3:22:46 PM , Rating: 3
In some engines that have knock sensors they retard ignition timing to reduce knock. Retarding timing will reduce the engines efficiency. Some engines are rated to run regular but can improve efficiency by running premium though the cost benefit isn't there. Excessive knock will cause damage.

When I towed a heavy load in summer up hills I would use mid grade to reduce the possibility of knock, down hill or lighter loads it made no difference. 90 F150 351 4X4. @ 55 I got 19 mpg, with a heavy load 16 mpg.

BTW Good on Ford to push mpg up 20%.

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