Possible e85problems?

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scotto0609

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My recently purchased 03 z71 sub is e85 capable, and I’m curious? Should I give it a try or not? The truck has 200k on it is running well with no codes. I have never used the stuff and don’t even know where I can get it. Thoughts? Thanks
 

HD_LS

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I think the ultimate is to have an e85 capable vehicle (for the extra ethanol resistance of all the fuel system components, and extra flow capacity), and then not use e85. :)
 

R422b

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I think the ultimate is to have an e85 capable vehicle (for the extra ethanol resistance of all the fuel system components, and extra flow capacity), and then not use e85. :)
That's pretty much what I do. My 2002 Tahoe is the 85 capable and though I have used it once or twice out of curiosity I was not impressed and I did the cost per BTU math and figured out that gasoline is cheaper so I don't use it anymore. My understanding is that 85 in a stock engine will never pay off. The fuel cost more per BTU and you get poor efficiency from it so unless you have a vehicle that requires high octane fuel 85 is not worth it.

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01FormulaTA

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wouldnt hurt to run a tank every now and then, it should clean some of the carbon deposits on the pistons and the valves...it burns much cleaner than gasoline and will give you a slight increase in performance...depending on what E85 costs in your area the price difference could offset the decrease in mileage, I run E85 exclusively in my truck and have never experienced any issues, I average about 13.7 mpg but its not an apples to apples comparison (my truck has a 6.0 swap, 11:1 compression, cam swap etc.)
 

R422b

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wouldnt hurt to run a tank every now and then, it should clean some of the carbon deposits on the pistons and the valves...it burns much cleaner than gasoline and will give you a slight increase in performance...depending on what E85 costs in your area the price difference could offset the decrease in mileage, I run E85 exclusively in my truck and have never experienced any issues, I average about 13.7 mpg but its not an apples to apples comparison (my truck has a 6.0 swap, 11:1 compression, cam swap etc.)
That's where it pays off. With a modified engine. My Tahoe goes from 18 mpg to 12 mpg on e85 because it is stock and can't take advantage of the higher octane.

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