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Old May 24, 2007 | 10:22 PM
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Flex Fuel

Any one hear about company called Full Flex that has an add-on processor tht allows a reg fuel 5.4 L to run on flex fuel. Will my early model 2006 5.4L run on this or do I have to get a newer one. Thanks.
 
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Old May 24, 2007 | 10:40 PM
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Your '06 isn't a FFV? I thought they were all FFV's starting on '06. Anyway, their website makes some pretty big assumptions. The following is my favorite:

"Is ethanol corrosive?

Ethanol is not in itself very corrosive, although it can contain a very small amount of water. When water and air is mixed you get rust. Ethanol is water soluble so it has an attraction to water (like a sponge). OEM engineers were given a task in the early 1990's to design vehicles to conform to ethanol.
Automotive engineers do not design something that is ALMOST safe or can ALMOST meet a standard. Rather, engineers design above and beyond the requirements needed. So it's difficult to see why we would presently be using ethanol in a small amount in our gasoline if there was just a small amount of risk involved. That just doesn't happen!!"


I can tell you engineers design what the bottom line tells them they can build. Assuming that the requirements and specs that give a tolerance of X will withstand X+15 is not always accurate. Their site also says you might have to change your fuel filter and pump several times after using their product.

Given gas prices these days there are bound to be many fly by night operations looking to make a buck without doing any real R&D and making false promises. I don't know anything about these guys, but caveat emptor.





 
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Old May 24, 2007 | 10:49 PM
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No my 06 FX4 was built in Oct 05, the window sticker said 5.4 L (F.F.S) engine.
I wondered if the FFs stood for flexible fuel system.
The guys at ford said that mid-year 06 they started all 5.4 to FFV.
 
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Old May 24, 2007 | 10:56 PM
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I think it means Feedback Fuel System.
 
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Old May 24, 2007 | 10:58 PM
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can it be converted to run flex fuel? the 8th digit in vin is 5 not V for flex capable.
 
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Old May 24, 2007 | 11:02 PM
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Right now I'd say no. The below is from e85fuel.com. I'd wait until someone releases an EPA and OEM approved conversion kit. If you do the ethanol might eat through some materials in the fuel system that are not meant to be exposed to high concentrations of ethanol.

IS IT POSSIBLE TO CONVERT A VEHICLE THAT WAS DESIGNED FOR GASOLINE TO OPERATE ON E85?

Yes. However, there are no conversions or after-market parts that have been certified by the EPA as meeting the standards to maintain clean exhaust emissions. Technically speaking, converting a vehicle that was designed to operate on unleaded gasoline only to operate on another form of fuel is a violation of the federal law and the offender may be subject to significant penalties. No after-market conversion company has successfully certified an E85 kit that would allow a gasoline vehicle to operate on 85 percent ethanol.

The differences in fuel injector size, air-fuel ratio, PCM calibrations, material composition of the fuel lines, pumps and tanks are just a few of the components that contribute to making an E85 conversion extremely complex. It is our understanding that at least one company is working to obtain EPA certification. We will monitor the situation closely, understanding the certification process can be time consuming, difficult and expensive.
 
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Old May 25, 2007 | 12:48 AM
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you'd be better off trying to convert to propane. and propane is alot cheaper...once you sink the thousands into the conversion

or, if you truly want FFV, the best method is trade for a truck with it.

sorry
 
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