2000 Toyota Tundra. Most of the 10,000+ miles were highway. I drive 100 miles a day to and from work (100 total each day). The time elapsed on the oil change was 5 months and 1 week. Opinions on these results appreciated. As you can see their comments are positive. Opinions on whether or not Mobil 1 might give even better results. Great forums! Many thanks.
ERS
ERS