I ONLY use AmsOil - or Royal Purple. BOTH companies make 5W-20 - I just had an OIL BY-PASS Filter installed - where 10% of the oil gets wilters 100 times smaller particles thann full flow oil filters - and then goes through a larger full-flow oil filter.

ANY Synthetic is better than a non-synth. UNLESS YOU HAVE MORE THAN 70K miles - DO NOT USE SYNTH IF YOU HAVEN'T before the 70K mile mark or so - or the deals aren't used to it, and you WILL leak oil.

I'll take some pictures of my AmsOil By-Pass filter set-up soon ... VERY sweet stuff - Engines with this set-up, even in big deisel setups look like they have NO engine wear, even after 100K.

Honda filters are crap - especially the small ones - Def., not enough roopm to effectively filter or keep from spill-back. Juet because you haven' had problems, doesn't mean it['s really doing as good as a job as good stuff. Poeple run cars 200K miles with generic dino oil and crap fram filters - but that doesn't mean that their interns don't have a lot of worn seals.