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KMPrenger · 09-30-2010, 03:47 PM

Oh boy, not this topic again. Here it is in a nutshell...

Car will run fine on 87, but theres proof out there that the car seems to pull more timing with the lower octane fuel.

Using 91 or higher has shown to lessen the amount of timing pulled which should result in the engine running a bit more to its potential. Will you be able to tell the difference? Who knows, some say they think the car sounds smoother or feels more responsive, while some say that while they agree it may be better for the car, its too little to notice. I lean more towards that 2nd camp, and yes I try to run higher than regular graded fuel.

09-30-2010, 03:47 PM	#3
KMPrenger Drives: 16 Camaro SS, 15 Colorado Join Date: May 2009 Location: Jefferson City, Missouri Posts: 13,967	Oh boy, not this topic again. Here it is in a nutshell... Car will run fine on 87, but theres proof out there that the car seems to pull more timing with the lower octane fuel. Using 91 or higher has shown to lessen the amount of timing pulled which should result in the engine running a bit more to its potential. Will you be able to tell the difference? Who knows, some say they think the car sounds smoother or feels more responsive, while some say that while they agree it may be better for the car, its too little to notice. I lean more towards that 2nd camp, and yes I try to run higher than regular graded fuel. __________________ 2016 Camaro 1SS - 8-speed - NPP - Black bowties 2010 Camaro 1LT V6 (Sold. I will miss her!)