Originally Posted by
DRAGOONRANCH
Buy your bargain basement oil from Napa (or whatever parts store), no need in spending dough on synthetic or the like now. You can go to Mustang Cat and get an oil sample kit from them to see what all is in the oil, that's what I use on my truck and equipment to keep an eye out for problems. Part # 1612, I have the little siphon pump that will pull it out of the dipstick tube if you want to pull a sample before you drop the pan/change oil. The tube doesn't fit down the dipstick tube on my wife's explorer, so that might be an issue.