I normally run premium fuel but yesterday I filled up with regular gas and my engine was pinging pretty bad. I put some octane booster in today and it fixed it. I thought Mustang GTs can run regular without problems and only Cobras required Premium?
by chance there wasn't a tanker there filling the gas station was there? Best advice I ever got was if you pull up at a gas station that has a tanker there hooked up, and there is a gas station across the street for 50 cents more per gallon, take the trip across the street. When they fill the tanks they stir up any sediment that might have ever made it into the tank and if you fill up while it is stirring the tank you can suck up damn near anything.
If it doesn't detonate on premium fuel then run premium fuel.I normally run premium fuel but yesterday I filled up with regular gas and my engine was pinging pretty bad. I put some octane booster in today and it fixed it. I thought Mustang GTs can run regular without problems and only Cobras required Premium?