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Flex tune in cold weather / extended storage?

Mikepol2

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2021 Mach 1, 2019 Ram 1500
This summer I installed a flex tune in my 2021 Mach 1 and love it. Gage indicates it's getting around E75 out of the flex pump that advertises E53-81, but not sure if that will hold true over the winter months. Generally from December - late March it sits in the garage. I probably drive it once or twice in December but usually Jan-Mar it doesn't even get started. Trying to decide if it's necessary to fill up with 93 pump gas for the winter, or if I can keep the flex fuel in it.

Any negative experiences starting / running a car in cold weather (25F - 30F) with flex fuel if it has been sitting idle for a few weeks?

Thanks in advance!
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LOL WUT

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My car went last winter stored on E85 (full tank) and driven maybe 2-3 times from Dec-March, no issues to report here.
 
 




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