i just went and changed my oil and used that "ADAVANCE AUTO" oil, that is compared with i think valvoline or soemthing, i used that 10w-40! and my car has been driving OK, normal. and I CHANGE MY CAR"S OIL every 2,500 miles.... adn its still black dirty oil. so i dont know about that 7.5K oil change.......i want to do that SEAFOAM stuff but ppl said if u dont need it dont do it, because it might mess up ur engine... and HOW DO I KONW IF IT NEED THE SEAFOAM stuff..... MORE INFO plz...

thanx
MOE~~