My '01 Trooper is currently on its second OCI with Mobil 1 0W-40. The first run's UOA showed pretty good wear for 6000 winter-thru-spring miles. Before the M1 0-40 I ran M1 5-30 and it also showed good wear in a UOA. I posted these here a few weeks ago. Before the M1, I used to use whatever oil was on sale (this is before I found this site and got into oil). But I have never noticed any difference in the way the car runs, it always runs very nice and smooth and quiet.
After this second run with M1 0-40 I'm thinking of trying a few runs with various Pennzoils with UOAs to see how they work. Maybe 5-30 in winter and then 10-30, or 10-40 or even 15-40 Long Life in the summer.
My '01 Trooper also uses a little bit of oil. Approx. a third to a half quart in 3000 miles. My other car, a '93 Camry wagon doesn't use anything between changes and it has over 160,000 miles.
I was wondering what oil would be better to run in an engine that burns a little. I may post seperately for that question.
After this second run with M1 0-40 I'm thinking of trying a few runs with various Pennzoils with UOAs to see how they work. Maybe 5-30 in winter and then 10-30, or 10-40 or even 15-40 Long Life in the summer.
My '01 Trooper also uses a little bit of oil. Approx. a third to a half quart in 3000 miles. My other car, a '93 Camry wagon doesn't use anything between changes and it has over 160,000 miles.
I was wondering what oil would be better to run in an engine that burns a little. I may post seperately for that question.