landstuhltaylor

iTrader: (6)

a quick search yielded nothing. what is the manufacturers recommended octane for a 1996 lt1. i dont have an owners manual or window sticker.

Skrilla

iTrader: (4)

91/93 depending on where u live

sdm1234

iTrader: (8)

depends on the LT1. is it in a B-Body or F-Body/Y-Body? B-Bodies can do regular, and F/Y-Bodies require premium.

landstuhltaylor

iTrader: (6)

f-body. im just making 100% sure between 89 or 93 octane

infinitebird

iTrader: (11)

93 for sure

BCook839

I have a 96' LT1 and looked it up in the manual a while back. It said premium premium premium. "91 or higher" if i do recall

koolaid_kid

iTrader: (21)

If those are your choices, go with the higher octane. It will run on the lower octane, but the PCM will retard timing (and power) to compensate.

onebadbird96

iTrader: (1)

do not run the 87 its sucks and you get bad gas mileage and your car will run like ****

B4CZR2

I had a 96, It says minimum 91 octane. I have once or twice ran 87 in it without noticing anything. But I wasn't driving the snot out of it, if I did I would notice it. That was right after I bought the car. I always ran 93 and ocassionally ran 91 in it. 104 runs really nice, motor feels really smooth and strong no matter what RPM.

landstuhltaylor

iTrader: (6)

thanks guys. 93 it is!

JUICED96Z

My 96 has a tune for 91 but it gets 93 or 94. 91 is hard to find around here lol.