The New Flexible Fuel 5.4L For The F-150
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From: Northeast Louisiana
The New Flexible Fuel 5.4L For The F-150
Has anyone with the new Flexible Fuel 5.4L engine tried the E85 Ethanol blend? I was curious about the performance. I understand that the octane level is 105 with E85. Here is a link to E85 stations if anyone is interested. http://www.e85fuel.com/database/search.php 
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From: Palm Desert, California
No, all the new 5.4L are not FFV. Order code 995 is still the regular 5.4L, while Order Code 99V is the FFV engine. I believe that I read on FMCDealer.com that ALL orders from here out, except in green states, will be outfitted with the FFV engine. Green states are ones like California, New York, New Jersey, Maine, etc...
I have also heard that E85 does nothing for performance or gas mileage at all, and if anything it actually makes it worse.
I have also heard that E85 does nothing for performance or gas mileage at all, and if anything it actually makes it worse.
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From: Airdrie, AB
Ethanol has less energy content than gasoline. However, E85 also has a much higher octane (ranging from 100 to 105) than gasoline. FFVs are not optimized to E85, so they experience a 5% to 15% drop in fuel economy. This will vary based on temperature and driving conditions.
For comparison purposes, aggressive driving habits can result in a 20% loss and low tire pressure can reduce mileage by 6%. Research indicates Ford FFVs experience a 5% horsepower gain on E85. The range of any particular vehicle is dependent on the size of the fuel tank and driving habits. Current Ford Taurus FFVs have an 18-gallon fuel tank and will normally travel 350 miles between refuelings.
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From: Georgia on my mind...
Originally Posted by 02SuperCrew4X
No, all the new 5.4L are not FFV. Order code 995 is still the regular 5.4L, while Order Code 99V is the FFV engine. I believe that I read on FMCDealer.com that ALL orders from here out, except in green states, will be outfitted with the FFV engine. Green states are ones like California, New York, New Jersey, Maine, etc...
I have also heard that E85 does nothing for performance or gas mileage at all, and if anything it actually makes it worse.
I have also heard that E85 does nothing for performance or gas mileage at all, and if anything it actually makes it worse.
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From: Palm Desert, California
Originally Posted by Quintin
I hope the FFV setup doesn't become standard. I'll be buying another truck sometime in '08ish I think, and flex fuel modules are expensive to replace when they fail.
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From: Las Vegas
Originally Posted by 02SuperCrew4X
I have also heard that E85 does nothing for performance or gas mileage at all, and if anything it actually makes it worse.
This is true.....i have an explorer with a flex fuel motor.....i only see benefits from the E85 in the SUMMER time....as it makes the truck feel more responsive.....however is MUCH cheaper than regular gas....and for those with superchargers or performance chips.....E85 (105 octane) wouldnt be a bad alternative to 91/93 octane when considering price.
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From: Northeast Louisiana
Mattieb87, Does the engine in your explore idle smooth when running on E85? Does it knock or ping when accelerating? I'm just curious to get some of the characteristics of these engines when running on E85. I hope this turns out to be a good thing because like you said in the post E85 is cheaper than regular gas.