DML, I've been searching the archive for about 45 minutes and cannot find one listing regarding cross over Oil Filters! My car came with several Purflux filters so I didn't need to buy one but I'm now at a point where I need to. I know some are a bit large but I used to use Frams on my first car with no problem. I just can't recall the filter number. Anyone have any concerns about Mobil One filters? Any thoughts about Fram or the "Tough Guard" Fram filter?. What is the best Oil grade for the Northeast?(10-30, 10-40, 20-50?) I use only Mobil One as it still flows when temps drop to the minus numbers! Thanks Tom #05732