Bootmod3 stage 2

[Hilly]

Just purchased a 2013 bmw m5 with tune, intakes, and downpipes. Currently working on getting access to the tune which I am guessing is running a tune for 93 OCT.

Where I live I only have access to 91 and E85..... will it be ok to run the 93 OCT map if I do 91 and a small mix of E85 while I am working on gaining access?

[mike@x-ph.com]

Originally Posted by Hilly

Just purchased a 2013 bmw m5 with tune, intakes, and downpipes. Currently working on getting access to the tune which I am guessing is running a tune for 93 OCT.

Where I live I only have access to 91 and E85..... will it be ok to run the 93 OCT map if I do 91 and a small mix of E85 while I am working on gaining access?

as long as you keep an eye on the fuel pumps, you can run a small mix of E85 just make sure your total octane is 93 or higher

[Pikey Motorsports]

Always datalog when doing things like this

[PattyF10M5]

Would recommend lowering torque levels. Rod's have been known to bend on this OTS tune.

[Simple5]

Hope you don't grenade your engine.

[Jasoneo5]

Yeah, not worth a few extra HP, IMO. I know plenty of folks that use 93 pump gas on a 91 tune just to be safe. If anything, a good quality octane booster would be a safer bet.