Oil filter used and why?

[lippy]

Originally Posted by Grey 65

Wix 51515R has a 61 micron rating.
Wix 51515 has a 21 micron rating.

I would not use a 51515R on a street engine. The R is for racing. It flows more. It doesn't catch near as much trash as the non R version.

Kevin.....

This is correct. Do not use a racing filter on a driver. The filtration isn't adequate. Wix will tell you not to do it as well.

I've used Wix 51515 and now I use a Baldwin 253. Baldwin and Wix both have reputations of being among the best. The Baldwin has the best combination of high flow and good filtration because the media area is higher. This filter also has a thicker canister and very strong construction, so it has high burst pressure.

Wix 51515 (not racing)
* 349 in^2
* 8-11 psi bypass valve
* anti-drainback
* 21 micron nominal
* 7-9 GPM max flow
* Burst is 290

Baldwin B253
* 490 in^2
* 20 psi bypass valve
* anti-drainback, standpipe
* 18 micron nominal (50% eff), 40 absolute (98.7% eff)
* Burst 600 psi
* Flow 12 GPM at 5 PSI. 8 GPM 4.1 PSI. 18 GPM at 14.8 PSI