I thought this analysis to be quite interesting. After running several fills of Mobil1, I was not satisfied with the UOAs on a 7500 mile interval. Lead and Iron were always very high. On lower mileage intervals the wear numbers improved, but not quite as low as I would have liked. So I decided to switch back to dino, and this board recommended Pennzoil... and the results are much improved.
Comparing this Pennzoil 4K interval with Mobil 4K intervals, with the exception of TIN, all the wear numbers are significantly improved!
This is when I realize that I'm still a newbie on this board... isn't synth supposd to provide better protection? What gives? Can anyone provide an explanation?
I did not change my driving style, and if anything I'm driving 80-90% city miles now, whereas before it was 70-80% highway. I have another Pennzoil fill right now and I cannot wait for the next UOA!
[ March 04, 2005, 01:10 AM: Message edited by: chinee ]
Comparing this Pennzoil 4K interval with Mobil 4K intervals, with the exception of TIN, all the wear numbers are significantly improved!
This is when I realize that I'm still a newbie on this board... isn't synth supposd to provide better protection? What gives? Can anyone provide an explanation?
I did not change my driving style, and if anything I'm driving 80-90% city miles now, whereas before it was 70-80% highway. I have another Pennzoil fill right now and I cannot wait for the next UOA!

[ March 04, 2005, 01:10 AM: Message edited by: chinee ]