I have a question about upping the octane to boost fuel mileage. The car in question is my 99 Zx2 DOHC. The engine has somewhat higher compression ratio is why I'm asking like 10.8:1 is what I read. Would running 91 octane boost the fuel milage any? It doesn't ping, although the knock sensors might be retarding the timing with 87 octane.
Thanks,
Dusty
Thanks,
Dusty