change interval for riding mower oil filter

[Oldtom]

I have a Craftsman riding mower with 16 horse Briggs engine. I am currently running Supertech synthetic 10 w 30 and a factory oil filter. The mower gets about 40 hours of use per season.

I plan to change the oil every fall, before storing the mower with a dry fuel system and fogging oil in the cylinder. How often should I change the oil filter? Factory Briggs filters are 10 dollars and discarding a filter after 40 hours seems wasteful.

I have read that a cheaper automotive filter will work, however, how do you know if the bypass on an automotive filter will open quickly enough to save the engine? For that matter, how do you know if a given filter even has a bypass? I like the idea of a cheaper, automotive filter that I can discard every year just to be sure of having a good filter.

thanks in advance for any advice

 

[SwampDweller]

I change mine once a year(oil and filter) with about the same hours per year as you describe.

 

[chad8]

Briggs type" 3/4" X 16 threads 8-11 PSI Bypass
Gasket 2.734"OD 2.430"ID 0.226" thick
Length" Wix Purolator Hastings Kohler B&S Baldwin JD TEC MotorCraft AC Fram
2.3" 57035 NA LF503 2805001 492932 B7165 ? 36563 NA NA? NA
2.7" 51056 L35310 LF302 1205001 492056 B1410 AM125424 36262 NA PF2210 PH8172
3.4" 51348 L10241 LF157 5205002 491056 BT223 AM101207 ? FL793 PF53 PH3614

 

[mattwithcats]

4.92" Fram 3600, Purolator 20195...

Just bough a bunch of S3614 and S3600 from AutoZone, $1.87 each, half price...
Great riding mower filter...

Note that the 3614 will require about 4 more ounces oil, the 3600, about 8...

My Craftsman LT2000 uses 56 ounces, with the S3600 filter, I add exactly two quarts, no measuring...

 

[Doc8404]

I always use Purolator on my DGS6400

 

[toneydoc]

I have used automotive filters on my engines for years and they work fine. Cheap and easy to obtain and then toss yearly

 

[sopususer]

Originally Posted By: toneydoc
I have used automotive filters on my engines for years and they work fine. Cheap and easy to obtain and then toss yearly


+1

I was excited to see Wix take on production of the Walmart Supertech filters. I'm running a "Wix" filter at a Walmart price on my Cub Cadet this mowing season. Previously I was using Motorcraft FL400S

No issues or drama with either.

 

[bubbatime]

I also use auto filters on these applications for YEARS - no issues.

Common rule of thumb on these engines - if it doesn't have a filter, change at 50 hours. If it has a filter, you can change at 100 hours. The filters are WAY under utilized and won't clog up with a 2 year interval. You can change the oil filter every other oil change if that tickles your fancy or just change it every time, choice is yours.

 

[BrocLuno]

So there is a body of engineering evidence that as oil ages in a motor, it builds anti-wear compounds from the heat and pressures in the motor. Those compounds work well and are not present in new oil. The consensus is to retain 10% of the old oil to keep some going while the new oil is forming replacements AW compounds.

To do this, some of us are changing oil, but leaving filter in place to act as a reservoir for that used oil. Also, the State of Calif fleet management found this out years ago and mandated filter changes every other oil change. That gets 1/2 way to the goal while minimizing mechanics time on any one vehicle.

I change the oil in the spring before the hot season, but fall works too. I use Super Tech (now) and WIX filters (Napa Gold) for my riders. I leave the filter and residual old oil for the retained oil and change the filter at the opposite season and top up

28 years and zero smoke or oil consumption in my oldest machine

 

[Rat407]

I'm Mr. waste and overkill and run the EaO9 on my ExMark Laser ZHP 21 hp Kawasaki engine.

 

[wayne50]

I change mine (oil and filter) once per season, about 30-35 hours. I used Purolator for a few years, but went back to the factory brand the last couple of years.

 

[funflyer]

If you only put 40 hours on the mower and change the oil/filter once a year that bypass valve is only along for the ride. With the low GMP small engine oil pumps flow I doubt the bypass valve would open even during cold operation.

 

[SHOZ]

I use Purolators on my John Deere. No worries about the bypass.....

 

[tig1]

I change oil and filter every 1 1/2 years which is about 40hrs. Oil Mobil 1 10w30 and filter MC FL 910.

 

[Eddie]

The B&S oil filter for my 20HP B&S INTEK twin is # 492932S and when cross referenced to a Fram is # PH 8170. The cost difference between a Fram PH8170 and the Brigs filter at Home Depot is ~ $1 so I will by the genuine Brigs every time. Ed

 

[DSparks]

A $2.84 ST3614 works just as good....send me your extra 6 bux

....flame suit on...lol

 

[4wd]

Read that the oil temp can run 250F on the B&S - that sound right?
Seems some of these filters are glued paper end cap- and plastic core filters ...

 

[DSparks]

Yep...lots of the oem heavy duty filters are ecores too...nothing wrong with them...

 

[Eddie]

ST#3614 FILTER is not cross referenced to a B&S INTEK engine so I'd be using the incorrect filter. Ed

 

[Lubener]

You can go 100 hours.Just pickup and notice the weight difference between that B&S filter versus an automotive filter.The B&S is much heavier, I have never cut one open to look inside.If you locally have any engine shows, I have picked up B&S filters for 5 dollars.