Three quick questions for MotorKing:
1. Is the Ultra mesh screen stainless steel like the RP?
YES
2. The TRD oil filter looks identical almost to the RP, also made by Fram?
Yes
3. What are the can thicknesses on an Ultra, Tough Guard, Extra Guard, and RP?
All the same and RP is much thicker, same thickness as a FRAM Racing filter. Dont have time to pull prints and cant tell you on the Royal Purple filter, you would need to ask them.
Good info, thanks. Having the stainless screen is good to know for storage. Pretty expensive feature I would think. In fact, I don't know how they make much money on these things, with all the steel, manufacturing, painting, boxing, on and on, volume production I guess.