MF-35/Perkins - Spin-on oil filter

The obvious answer that need not be repeated is to go to teh MF dealer and buy the correct filter. I rarely am in the neighborhood, and teh round trip at today's gas prices costs me $10 just for gas - even in my 4-cyl Ford Ranger. So...

One reply to my previous thread suggested several popular brand filters (Fram, AC, etc.) that are available at most auto parts and even Walmart. Two suggested a Wix 51460 filter from an auto parts store. Here's the numbers yet another poster gave: PH 2870A, AC PF 56, Wix 51318. I'm inclined to go with the Wix, but now have two different numbers. The 51318 is shown on the Wix site as for JD with Yanmar engine, so will assume it's not the one.

However, then somebody mentioned by-pass pressure and that the MF-35 spec calls for 8-12 psi, and pointed out that the Fram is 30 and the AC is 8 psi.

I went out to the Wix site and used their filter finder and the one they recommend is also 51460 - same as the number given by the posters in my old thread - with bypass at 15-17 psi.

Others spoke up for various options. One poster talked about why too high a bypass is bad, others said they never worry about it as long as they change regularly. Finally, one poster who sells Baldwin filters recommended a Baldwin B-243 with a bypass of 8 psi. It was a nice long thread with lots of participation. Big Dean was out of town, so didn't participate.

I'm inclined to go with the Wix 51460, but...still have those little nagging feelings about the 15-17 psi bypass.

Sooooo ....anybody care to jump in and try clarifying this whole thing?

Thanks for whatever you can offer.
Chuck, WA

Oil pressure is still right on the mark. Engine is in near new condition. I put pan gaskets on earlier this spring. INSIDE of engine is spotless.

I'm not saying there isn't something better, only that WIX 51460 works just fine. (NAPA #1460, Made by WIX)

Chuck, WA

Thanks for the reply.
Chuck, WA

This normally doesn't happen if they're changed regularly.

Test: put your hand on the filter after the engine warms up. If the filter is warm, the oil is flowing through it.

There is a difference in filters. There was a website (no longer around) which compared different makes of filters for (I think) a chev. The filtering paper area was the biggest difference - Fram had about half the area that OEM or Wix had. I'm guessing Fram threatened the owner of the site with legal action.

So they sell cheaper!

We've been running the 35's, 135's, 65, 165, 30 and 40 industrial (10 units total) for 25 years now - probably 20,000 hours total on them, with off-the-shelf filters, changed regularly. (every 100 hours.) No problems evident."
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Chuck, WA