NC01TA

I have a feeling many owners of our LS1 Trans Ams have not seen this label on their gas cap lid. Probably lost or worn out over the years. I have read so many posts from owners both here and in other sections wondering if they should use premium fuel. Yes you should, if you want the car to perform as intended. I took a photo of the label on my gas lid for anyone interested. Just click on the photo so you can read it.
Attachment 377911

AlamoTA

iTrader: (10)

I've seen and ignored it. Mid-grade works just fine for my DD

TAvsGN

I will have to look and see if my 98 has that decal, never noticed it before. I have always run 93 or 94 (when the local Sunoco had it) in it anyways.

z-maro

iTrader: (18)

This is what is in the manual...

I do use premium, but using the lower octane should not cause damage, thats what the "low octane timing table" is for.

BrntWS6

iTrader: (7)

That label is not on my 2002, not that it matters I've put premium in her since 2001.

WarShrike

iTrader: (5)

Yup, there's low octane tables for this specific reason.