Should I be using premium gas in a '95 Cab with 66,000 miles?

 

Believe it, or not, contrary to what auto manufacturers will urge you towards, your car's engine controm module (the ECM)is smart enough to adjust it's performance to whatever fuel you put in it, within reason, of course (87/89/91/93 octane, e05/e10/e15). Now, if you're asking about how to get the most out of your engine: best performance, best mileage, cleanest exhaust, etc, then teh answer is an unchallenged YES!!! Of course!!!

Next question?