Originally Posted by VIsubi
not really in stock trim 89 is fine but if you have a tune and advanced timing or cams or high compression..better be 93 or race gas in that thing(high compression is higher than stock like 12:1) other than that just make sure the gas station gets gas delivered regularly..not once a week or once every two weeks..the more a gas station gets there gas delivered..the more you know theres likely no rust or water in there wells...down here the gas station I go to gets gas 3 times a week..which is good..you always get gas from the middle never from the bottom or top...
Im speaking more towards the additives. I recall vishnu tuning in cali dyno testing different fuels and finding that 76 was the best???