FR651V oil filter choices

[bertsmobile1]

Absolutely none on a lawn mower other than to add a cuple of ounces to the oil capacity
In theory the greater the surface area of the filter medium the longer it will take to clog up the filter
In reality it would take near 20 years of use to clog the smallest of the oil filters fitted as standard to mower engines
But it makes the peanut gallery feel superiour and does no damage so it does not hurt .
Mower oil should be changed every season and in most cases if you do this then you do not need an oil filter on a vertical shaft engine.

As for micron ratings they are +/- 20 % on commercial media and depending upon which standard is being used then you can get up to a 50% variation
Filter paper is not like a screen where the mesh size is fairly well absolute

 

[BTBO]

OEM Kawasaki 49065-7007 recent changed to 49065-0721
Wix replacements
57035 2.3" tall 32 micron (same as OEM)
51056 2.7" tall 21 micron

Is anyone using 57148? 3.4"tall 5 micron. I see no problem fiting this one on my machine

Cheers, Ray

I have the same engine on my Scag Liberty Z and use either Mobil-1 102A or Bosch Distance Plus 3330 filters. Both have 99.8%+ first pass efficiency. Oil and filter are changed yearly.

 

[Hammermechanicman]

I recently changed oil in my wife's car. Filter is about the same size as the Briggs small filter and is supposed to go 7,500 miles per GM.

 

[7394]

I've only done 2 oil changes on my New Z, so far. & I use the Kaw 49065-0724 oil filters.
Still under warranty, so I will continue on this path for now.

 

[txmowman]

I recently changed oil in my wife's car. Filter is about the same size as the Briggs small filter and is supposed to go 7,500 miles per GM.

Although I'm not sure of anything scientific, some equate 1 engine hour to approximately 50 miles. So with this theory, 7500 divided by 50 is 150. Recommended oil and filter change is at 100 hours. So I would call this pretty close.