Hey guys, quick Q I couldn't find when breifly searching.

When I had my ecu flashed/tuned with UpRev, I had 94 octane in the tank.

In Canada, this is only available through a company called Sunoco which blends 91 octane with 9% ethanol to achieve 94 octane fuel.

Recent research has me leaning further away from using any type of ethanol... Shell does V-power 91 octane with no ethanol what-so-ever.

I'm considering making the switch, but wondered if this would have a negative effect on my uprev map because the initial flash/tune was done with 94.

Thoughts?

Thanks.

 

yes

edit: timing is set for the 94oct that was in the tank.