GMC Truck Forum banner
1 - 1 of 1 Posts

·
Registered
Joined
·
1,816 Posts
There is no point in running anything higher than 87 unless your manual tells you too, or its pinging, or you've got a higher octane tune. There is no difference in the quality of the gas, the only difference is that the higher octane gas ignites at a higher tempurature and is less prone to pre-detonation.
 
1 - 1 of 1 Posts
Top