5.0 and flex fuel
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Joined: Dec 2017
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None of the 18s that I have looked at have flex fuel badging on the tailgate. I have still not found a verifiable reason that some are flex fuel and some are not. The only part number difference I can find is the filler neck and under hood labels.
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I believe the FFV 5.0s do not meet the more restrictive emission regulations in some states. Mines is FFV and there is a label under the hood that states it's not certified in all 50 states or something to that effect. I'm guessing the engine is FFV but the emissions equipment is not and using ethanol will damage the emissions system.
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From: Texas
That's insane! Definitely not worth it. I just filled up on E85 for $1.48 a gallon.
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From: Oxford, Iowa
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That is one thing nice about living in the corn belt. E-85 and many blends of E-15,30,50,60 are sometimes available as well. Just depends on the station. I have not ran E-85 in the new truck, but in my previous truck(2011 5.0)....I ran it quite a bit. It runs really well on E-85. But-terrible fuel mileage. So it just depends what the price spread is. It's usually only about 15-20% cheaper, so the mileage hit is bigger than that sometimes.
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Around here e-85 is popular with the high compression and boosted crowd. Basically government subsidized race gas. My hot rod is a 432CI small block Windsor alcohol burner. I can run it on the street emissions exempt as an alternative fuel vehicle in GA. I would also consider running it if I choose to throw a supercharger on my truck. While I haven't looked into it, no doubt an E85 tune would make some serious power if the fuel system is up to it.
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Joined: Jan 2009
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From: Oxford, Iowa
Around here e-85 is popular with the high compression and boosted crowd. Basically government subsidized race gas. My hot rod is a 432CI small block Windsor alcohol burner. I can run it on the street emissions exempt as an alternative fuel vehicle in GA. I would also consider running it if I choose to throw a supercharger on my truck. While I haven't looked into it, no doubt an E85 tune would make some serious power if the fuel system is up to it.
Ya, my brother has an 03 SVT Cobra drag car that runs low 9's. He has it set up to run on E85 with a large turbo. It can be run on E-85 or regular gas as well. It makes almost 100 more HP on E-85 though. Had it dyno'd on E-85 and put 868 HP to the wheels. Only about 750ish on regular gas. That thing is a rocket!