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My current car says 'Premium fuel Recommended' I was wondering if the G37 is the same way? Does anyone know if it is completely safe to use regular unleaded, with the only consequence being reduced performance? In California they only offer 91 Octane anyway for premium (unlike all other 49 states that contain the real 'premium' at 93 Octane) so I'm not getting top performance with CA premium.
Last edited by G37-Forever; May 8, 2008 at 12:04 PM.
I live in Cali and Premium is all I put in my tank.... Oh and I think it says "Premium Unleaded Fuel Only" on the inside of the Fuel Filler Door... Maybe not those exact words but something along the lines of that...
I'm on a 2 year lease... 87 Octane all the way... havent noticed any problems at all... people tell me that the problems will come, but I wont have the car by then so I dont care...
87 octane will spontaneously ignite, causing pinging, at that ratio. 89 octane is probably fine, but i use premium.
ya I knew there some explanation like that... I'm gonna try the 94 octane next time to see how much of a difference in power I feel...if its substantial enough, I might just start using that instead...
