If I have flash tuned a 91 OCT map into the ecu, and I filled the car with 93 OCT gas, will there be any downsides? Less power or same ? Will it perform worse off than using 91 OCT ? Any potential damage to the car or would it be better for the car instead ?
I know I could switch to 93 OCT map and switch maps on the go, but i may not have access to 93 OCT fuel at the station and have access to a laptop in the car all the time.
Also Alex, do you have a 95 OCT map ? It does not specifically mention on your website:
https://alpinemss.com/products/e9x-m...tune-2007-2013 , as it states "Ignition timing optimized for octane of fuel (
90, 91, 93, 100 and more)"