my feeling on the oil subject is this , Napa brand oil is valovoline in a Napa package , but it is cheaper WHY? ...but taht is onna them there mysteries of life .
If ya change your oil every 2500 to 3000 like ya should ....heck Napa Brand is just as good as any other , i never got into teh synthetics as i change all in my vehicles before tey hit 3 grand .I am with 48Big...KEEP CLEAN OIL IN IT AN NO PROBS !