Will the ss supercharged require premium gas?

 

To make max power yes, to run normally no.

 

agreed

 

I'm sure I read that they recommend premium, but I'm sure it's the same as the Gen IV 3800 SC. Premium is recommended for best performance, but only regular is required, as the engine will detect the change and retard the timing.

 

The manual recomends 91 octane for the SS.

 

eh half 91 half 100 octain, i'll be good. lol

 

If they require 91 in the manual you would be ill advised to use 87.

Even with a knock sensor there is still a detonation occuring before it can sense the knock and back down the timing.

 

It is documented that 87 is acceptable, or atleast it was, on chevy's site. It did say that performance would decrease though (obviously)

 

performance will decrease as the computer will try and get things in control, if it says use 91+, use 91+, my redline only gets 93 and there is a reason that they tell you to use it. the car is DESIGNED to use it, using lower octane will reduce the life of the engine. if you're buying a sportscar, why cheap out on $2.00/tank?

 

Also retarding the timing will lower the gas mileage.

 

Well put Vita

 

Think about it ....... the engine has a 10:1 compression ratio. If you use less than 91+ you are asking the engine to make up for the reduced power provided by higher octane to break the compression inhearent in the engine. By doing this you are putting more stress on the componets of the engine at a lower octane......... What do you want to do? save money now or save money on engine repairs in the long run

 

but if you just using it for daily driving do you think it will matter?