Hi eveyone,
I have a 88' Iroc-Z with a 5.0L TPI, with a 5spd. Since I've bought the car from a former co-worker, I've ran Valvoline Full Syn, and now I have QS Ultra in there. I also run Fram XG filters. I'll be changin gover to Purolator's pure-one filters as well. I also notice that the...