I am wondering, my 2006 lucerne 3.8L uses about 8 oz of oil per 1000. So a 4000 mile run would be 1 Qt. or a 2000 run would be 1/2 qt. etc... My question is should I add oil when down about a half qt? or should I just let it down to the lower fill mark and change at 4000 miles. thanks..
I am presently using kendall syn blend gt-1 5w-30, before that was shell dino 5w-30
I am presently using kendall syn blend gt-1 5w-30, before that was shell dino 5w-30