RE: Nothing outperforms mobil 1??
Sounds good John, I've got 0W-30 in my MK8, doing great, my son has 5W-30 in his F-150 w/5.4, and we both have no problems with the extended oil changes.
I also have Amsoil ATF in my MK8 trans, it stopped the most persisent case of TC clutch shudder I have ever encountered.
My 2003 Chev Silverado Duramax diesel is going on the dual remote filters from Amsoil, 1 full flow, the other bypass {for particulates as small as 1 micron}.
I've just posted an ad on this site, when moderators approve it, it will be posted om vendor's site.
As a final note, those interested in oil analysis reports can find a link to a flock of them on Ford Powerstroke Diesels on the old site, driveline, post about extended drain intervals.
I would post it here, but I don't have enough computer savvy to do so, if someone does will do so it would be great. Maybe someday I'll have time to get a little schooling on these dag-nab new fangled thingamabobs!