View Single Post
      11-28-2012, 06:19 PM   #4
Roki_014
Major
71
Rep
1,243
Posts

Drives: 2018 540i
Join Date: Jun 2012
Location: Miami

iTrader: (0)

Quote:
Originally Posted by EB_F30 View Post
Less octane in the fuel is not going to burn as well...more octane equals more power because the fuel is more potent and it's also burning more air...thus making more power. I highly suggest not running 89 in a turbo car, you can lean the car out causing detention, especially in the high RPM's. It's very bad for the engine.
what are you using, and what you think about 91?