I like Mobil 1 too, have it in my daily driver, and also am running Shell Rotella T in my T engine. As for filters, I have seen post after post on various forums about how bad Fram filters are these days. Some people have shown cut up Fram filters where the insides have collapsed and one guy said it plugged up his race engine passages to the point that it fried the engine. I like Purolator and Wix, and run Volvo marine oil filters on my T, since the engine came out of a boat it just seemed natural to do that. I also hear good things about NAPA filters.

Don