thanks.your right i should have asked before i bought the oil.but any full synthetic should be better than a conventional oil.at least thats my thoughts.they also have their conventional oil for $11.00 for a five quart jug.i might just buy some more for my stash.i am in centerville tennesee for another week.will be heading back to ny state next friday.no orielys anywhere around me just napa and advance auto.autozone is twenty six miles from me.