| FAQ |
| Members List |
| Social Groups |
| Calendar |
| Search |
| Today's Posts |
|
#1
10-11-2016, 05:48 PM
|
||||
|
||||
74 Grand Prix 91 Octane??
My 74 I bought a while back has a 91 octane sticker on the radiator cover panel. Its hard to get 91 around here. Seems like most have 87-89-93 but I did find it at one place. Why does it require 91? I have ran all different octanes and can't seem to tell a difference. Does anyone use a lead additive, if so Why? Just curious on this. It has a 400. Thanks
__________________
1974 Grand Prix Model J |
|
|
The PY Online Forums is the largest online gathering of Pontiac enthusiasts anywhere in the world. Founded in 1991, it was also the first online forum for people to gather and talk about their Pontiacs. Since then, it has become the mecca of Pontiac technical data and knowledge that no other place can surpass.
Threaded Mode