Originally Posted by revhigh
As much as I always say I'm going to keep a car forever, I usually get bored with it or it needs some kind of major work at about the 150,000 mile mark. My last car was a 2005 Toyota Corolla with 165,000 miles on it. I used Toyota filters and M1 in it from day 1. When I changed the oil at 10,000 intervals it hadn't used a drop and looked only slightly darker than new.
I'm the same, and this is the reason I use cheap conventional oils. The top end of my '01 Focus at 135K miles is pretty, and I've put nothing but Castrol GTX in it. That car is for sale, and I'm not sure how I could have justified more expensive oils in the end.