Which oil is best to use on a car that has about 85000 miles on it. I just use mobile 5w30 and a fram filter mostly. but wat should i do should i switch over to something else??? I even sometimes get my oil change done by the dealer any ideas on what else i could do?????

 

You are on the right track with the oil type (if it is mobil1) if not I'd suggest using the mobil 1 product, however I'd caution u on the use of the fram filter I'd suggest perhaps the nissan or even a purolater will do far better than your current choice (filter I mean)

 

http://forums.maxima.org/showthread.php?t=227996