Using E-85 instead of gas

[green99]

your engine has no way of telling what octane is in the tank, and therefor no way of making use of the higher octane fuel.

This is in reference to non-flex engines, right? I would think the flex-fuel sensor would allow the computer to make adjustments to maximaze E-85 performance in those engines.

 

[Wicked_Sludge]

the flex fuel sensor detects ethanol content of the fuel, not octane. while increasing ethanol has the same effect on the fuels burn quality as increasing octane, the sensor does not detect octane.

 

[99stepside]

all i know is i love my E85. i havent had any probs with my truck and i do see a horsepower changeand the engine runs a hell of alot smoother. the only down side to having the flex feul was when i went to replace the fuel filter i had one hell of a time trying to find an FFV feul filter. took 3 days and a special order. then i go to auto zone and ask what i should do for engine oil knowing if i had a hard time finding a specil feul filter maybe ive been putting the wrong oil inn it too. well i was right, but i dont quite know why, so now my oil changes cost me 70 dollars now. but other than that I LOVE FLEX FUEL

 

[Wicked_Sludge]

hate to burst your bubble, but aside from a few computer and fuel system differences, your engine is identical to the regular gasoline 3.0...and has the same oil requirments. your parts store is trying to make a buck off of you. any quality 5w-20 API rated motor oil works dandy.