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-   -   e85 in 20’ SQ5? Non-flex fuel rated? (https://www.audiworld.com/forums/q5-sq5-mkii-discussion-218/e85-20-sq5-non-flex-fuel-rated-3069105/)

SanjayR5 03-31-2024 04:53 PM

e85 in 20’ SQ5? Non-flex fuel rated?
 
I’ve been running e85 in my 2020 SQ5 for the last 4 months with an e85 tune from IE. I was wondering if I have to worry about any fuel line corrosion as it’s not technically a flex fuel vehicle, and should I be cleaning it out with 91 every so often?

Sq5onFire 04-01-2024 06:50 AM


Originally Posted by SanjayR5 (Post 25896609)
I’ve been running e85 in my 2020 SQ5 for the last 4 months with an e85 tune from IE. I was wondering if I have to worry about any fuel line corrosion as it’s not technically a flex fuel vehicle, and should I be cleaning it out with 91 every so often?

034 Motorsport has a video on YouTube talking about e85 use.

Wires 04-03-2024 04:16 PM


Originally Posted by SanjayR5 (Post 25896609)
I’ve been running e85 in my 2020 SQ5 for the last 4 months with an e85 tune from IE. I was wondering if I have to worry about any fuel line corrosion as it’s not technically a flex fuel vehicle, and should I be cleaning it out with 91 every so often?

If corrosion is your concern, "cleaning it with 91 octane" isn't a thing. It corrodes in a sealed tube due to the water it absorbs. You cannot "undo" that with a little 91 octane....

Elvisfan 04-03-2024 06:39 PM


Originally Posted by Wires (Post 25897362)
If corrosion is your concern, "cleaning it with 91 octane" isn't a thing. It corrodes in a sealed tube due to the water it absorbs. You cannot "undo" that with a little 91 octane....

This is another reason I hesitate buying a used car.


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