Originally Posted By: bmwtechguy
For that price, I'll continue to use EaO filters for extended oci. While I may not go the full allowable 25k miles/1 year on the EaO, at least it is rated to go the distance. This RP filter is rated for less than half that many miles for about the same price.
It might not be "rated" for as long but say its rated for 12,000 miles and you drive that many miles in a year and you are supposed to replace the Amsoil filter 25,000 miles or 1 year whichever comes first, you would be replacing them at the same time. I also see ratings as marketing, I would rather look at proof and since the Royal Purple filters just came out we don't have the proof of how they work yet. I would not have a problem trying the Royal Purple filter, but I have not seen them at my local Pep Boys yet.