Premium fuel v. Regular Unleaded
#4
Thanks guys, seems like a no brainer. I guess having never owned a 'high performance' vehicle...It didn't cross my mind tell a buddy questioned me on it. I need to fill up again by tomorrow, afterwards I'll post back to see if I felt a difference.
#7
With a forced induction engine, you really need to use premium. It might run on regular but more than likely you're going to get detonation due to the low octane (and increased cylinder pressure and temperature due to boost) and set the knock sensor off. This will cause the ECU to pull timing and then you're not getting all of the performance you paid for. Worst case, if the knock sensor goes bad and the detonation is bad enough you could damage pistons and valves. You paid for a performance vehicle, it's worth the extra at the pump to put the premium in. You'll enjoy the difference.