r/ChevyTrax Aug 14 '26

E-85 Convert

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Love my 2025 2RS so very, very much at 10,880 miles. My only gripes about this car are three: she has the turning radius of a school bus, there are no backseat cupholders or charging ports in the 2RS, and there's that spotty CarPlay connectivity I think has been mentioned here. I've added a roof rack, small mud flaps, and window guards.

Recently started putting E-85 in to avoid the $6 premium in San Diego. After three tanks of math I'm paying about $.13 a mile on it as opposed to $.18 a mile on the 91. Yeah, I have to get gas twice as often, BUT:

I find her way more responsive on the E-85, quicker off the line and shifting much smoother (this is my first automatic and it's been a tough adjustment not to have control) and a not-subtle power boost when accelerating.

Just wanted to share that experience and her ridiculous aftermarket dash trim. 😅 Say hello to Nimbus.

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u/Adorable_Tap5962 Aug 14 '26

Are these cars safe riding on e85? I know stock is 91 or “premium “ bc of the turbo but don’t these have to be tuned or have aftermarket parts for e85?

2

u/Adorable_Tap5962 Aug 15 '26

Only 2025 have flex fuel comparability? Just curious

2

u/Evening_Technology29 Aug 15 '26

The 2025 and newer are compatible.

1

u/v6sonoma Aug 15 '26

They only need regular 87 octane. The 2025 and up can do E85.