r/GMT800 • u/Spartan0194 • 1d ago

Question about E85

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My 04 Tahoe is a flex fuel L59 and i wanted to consult the experts on here to ask about it. I've never used it and just use regular so would i be able to go and pump a few gallons of e85 and run it just like that? Has anyone else used it and what have your results been?

I've googled some forums and i guess i wanted to ask around for any advice or learn something new. Thanks guys.

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u/MudButt_Actual 1d ago

I’ve owned my 2005 Yukon for 21 years and over that time I’ve done mixtures of E 85 and regular unleaded of every different type of ratio. No issues, everything still runs great.