Switching from 87 to 91 octane

[4drmadness]

I was being a jackass filling my car with 87. Im finally filling up 91 now. i was wondering if i should clear up the engine, or there is no need to. any other ways? let me know what you guys think

[G_whizz]

You'll be fine... just continue to fill up with 91.

[SteveTheTech]

I would think about resetting your base parameters to adjust for the new higher resistance to burn (octane rating) fuel. I cannot find a way to do this without a Consult. I will supply you with a recent thread where I posted the complete instructions on how to set your base value. It is a little intensive and and will take you a few tries but for optimum performance you may want to try.

http://forums.g35club.org/zero...23191 Note: If the Idle Volume learn is not performed completely you will set a DTC.

[4drmadness]

thanks man. i will try doing reset next weekend and let you know how it goes.