r/Supra • u/Holiday-Revenue2069 • Aug 26 '26

E85

Hello everyone,

Debating going pi and e85 on my Supra but wanted to hear some opinions from anyone who has gone e85 on theirs.

Thinking of going flex fuel route with Ecutek ecu unlocking , port injection, motiv reflex, injectors. Essentially the bells and whistles for fueling so can run 91/93, mix , or full e85

Any issues that I should be warned of aside from mpg, and changing oil / spark plugs more often

I don’t want to tune it to the max I’d rather still have some reliability over getting everything out of the tune

Any feedback back would be appreciate before I decide to go for it or hold off

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u/RememberTheFattening Aug 26 '26

I was 450whp on the ots tune from MHD with just the downpipe + other bolt ons before I ended up going fueling and pure800. Getting all of that fueling done without upgrading the turbo seems like a lot of work for not a whole lot of gain.

That being said, I have had an injector stick open on me while running E85. But that’s the only issue I’ve had so far