what type of oil to use in a 225?

Really? I've been using them for years in all my cars, trucks, and tractors, and have never had any problems with them.

Cardboard parts,fewer perforations in the filter,back-flow valve control,and just
poor overall construction. It's no secret,do a search.

Wix,Napa Gold(Wix),K&N,Purolator,= Good.