regular, mid-grade or premium gas. what do you use on your LT1???
10-06-2003, 10:25 PM
#33
Registered User
Join Date: Aug 2002
Location: Madison Heights, MI
Posts: 2,356
Always premium. 92 or 93. I tried 89 one time just to see how it performed. Needless to say, thats the last time I'll put anything other than premium in my LT1. That was well over a year ago.
10-06-2003, 10:47 PM
#34
Registered User
Join Date: Feb 2003
Location: Vallejo
Posts: 15
None of you guys must live in CA because all I can find around here is 91. The only thing i could do is drive to sears point the local track every time I needed gas and hope that they dont have only 110 plus.
Maybe i'll go to there website and look for the closest one...
10-07-2003, 05:34 AM
#39
Registered User
Join Date: Sep 1998
Location: Oakville, Ontario
Posts: 679
I use 92 octane in the warmer months, but then once the high temps of the day stop going above 50F, I switch to 89 octane. These engines don't get spark retard on 89 octane in cool weather (I verified this with Scanmaster)
10-07-2003, 03:51 PM
#45
Registered User
Join Date: Aug 2003
Location: Fresno, CA
Posts: 98
Never put anything lower than 91 octane in my Z. I've found a few places around town that say 92 octane on the pump. But I still need to talk to the manager/owner to find out if it's really 92. Or if they haven't change the lable on the pump.