Originally Posted By: Falken
Wix filters have the best balance of flow, price, and technology. They are the original spin on oil filter. Made in Gastonia, U.S.A.
The biggest problem with Royal Purple is Pennzoil Platinum and QSUD.
Two amazing dirt cheap trusted oils vs. purple oil that costs a lot, shears a ton, and has spotty UOAs?
If you want to go the RP route, look the Amsoil route first IMO.
I have never seen a bad Amsoil extended UOA in a healthy engine on this site. It has a lot of trust on this site and I trust it as well.
If I could get Amsoil 0W20 at Canadian Tire that is what I'd use when I extend my OCI when my warranty is up.
Not all wix oil filters are made in the USA. Some are Mexico, Poland, and other places.