RedHottG2

iTrader: (14)

I've been putting 89 octane in my car since I bought it a month ago. Should I stay with that or is it alright to use 87 ? My car is pretty much stock just want to know what I should use to make everything better for the car. Or if it even matters..

Hamrdown

iTrader: (25)

What kind of car do you have?

TheBlueKnight

iTrader: (4)

Your gonna get a hundred different people in here telling you that they run 91 or 93. Either is fine. Running anything less will cause engine ping.

TheBlueKnight

iTrader: (4)

Its in his sig. 2000 Z28 M6

hitmanws6

iTrader: (20)

at least 91. the P in your vin stands for premium fuel.

Hamrdown

iTrader: (25)

^duh haha^ overlooked that one. At least run 91 especially since you live in Waco where 90% of your summer is around 100 degrees.

RedHottG2

iTrader: (14)

OK thanks guys, hell I thought I was alright with 89 so I'll step it up to 91-93.

Ice78Transam

iTrader: (1)

Truly, you are alright with 89, or even 87 for that matter. Our engines aren't THAT high compression that the computer can't tune for the lesser octane gas. You probably haven't noticed any drivability issues because the fuel is fine, but you have lost peak power due to timing being pulled.

That said, I have never, and will never run anything but Shell, BP, or Mobil 93 octane.

chadaclysm

93. always.

theprof17

iTrader: (1)

89 is just fine.

Nick_Rapitis

iTrader: (15)

BP fuel sucks

Ice78Transam

iTrader: (1)

That doesn't help anyone.

And you may have had a bad experience.

BP is consistently ranked #1 followed distantly by Shell and then Mobil.

Regardless, I like Mobil and pretty much only use other gas in a pinch & always 93.

97badass

iTrader: (8)

89 here in kansas is the ethanol blend... its the cheapest. with 87 .10 more per/gal with 91 .20 more then 87