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Used Oil in Air Cleaners?

D

Doc Larry

Member
I had a thought (!) yesterday when I checked the oil in the oil bath air cleaner on my "new" 930. Do any of you folks put used motor oil in oil bath cleaners? I"ve always used fresh oil. Any pros and cons to using old motor oil?
 
(quoted from post at 11:22:34 02/21/12)
yes I use used oil all the time. Can't see how fresh oil does any different but cost a lot more.
Click to expand...

If the oil is already dirty when you put it in the cup, how much more dirt will the oil hold?

Another case of "if you're going to do it, do it right"
 
I believe (right or wrong) that the oil is just a medium to soak
the wire mesh that does the actual filtering. when tractor pulling
have filled with an alcohol mix and after a pull it is nearly all
evaporated.
 
I have to agree on using clean oil, if the screen is what does the cleaning then why is the dirt at the bottom of the oil cup? I do remmeber the older manuals saying you could use used oil in them but all of the later ones say use clean oil, like you said the oil needs to catch and hold the dirt in suspension just my two cents, it does not cost that much to use new oil in my opinion cnt
 
If you read the owner's manual for your tractor you will see that it said to use "used Oil". The oil does not hold the dirt but traps it.....when you clean out the oil resevoir, after working the tractor in dusty conditions, you will find "oily mud" stuck on the bottom. Used oil works just as well as new.
 
This is one of those debate things that I think has no "RIGHT" answer. The way it was told to me is the oil is sucked into the mesh which traps the dirt and when shut down the oil washes the dirt from the mesh when it falls back to the cup. This is why the oil should be for the temperature range of the engine oil. Don't know whats right but have used drain oil as long as i can remember. Did follow book recomendations of clean and change daily.
 
have to agree with you on that and maybe used will work fine, me I will just keep using new oil just makes me feel better LOL cnt
 
I've always used new oil.. A long while back I bought probably 20 gallons of oil in quart "cardboard cans" for about 25 cents a crack.. Probably fine to use in a engine still, but have used it all to fill air cleaners, and as cutting oil and the like.. But.. after thinking about it a bit..

I change my oil in my Chevy gas pickup every 3-4000 miles (and now we're supposed to use it until the truck tells us to change it).. The oil looks as good as new, however, I know it has some dirt, shavings, etc etc etc, plus lost some of it's "additive package", but don't see why it wouldn't be just as effective as oil fresh from the container..

I would also use oil I drained from my tractors.. I used to change oil every spring, and I don't think any of them get used much more than 10 hours a year.. Since I don't farm any longer, I been letting them go 2-3 years, except for my Cub, as I mow lawn with it every week.. The rest I just joyride around on.

I however, would not use the oil I drained from my diesel truck..

Brad
 
I have always used new oil and what ever type I had available at the time. I have always wondered what weight oil to use. It seems that an oil such as 20-50w might be too thick and not travel up in the air cleaner like it should.
 
I use 20 wt. non detergent year around. When I service I strain it through a paper paint filter and pour it back in and top it off. Been doing that for 40 years. When I have one apart I always check for dirt in the intake, it's always nice and clean.
 
Most owners manuals say same viscosity as in the engine for temperature range. A 20-50 oil is 20 viscosity with additives to make it behave as a 50, thats why a 5-30 starts in the cold but doesn't burn up in the heat.
 
Thanks for all the comments.

I buy quite a bit of off brand oil at yard sales, and that"s what I normally use, but I was curious about what others do. I noticed on this tractor, although there"s close to an inch of sludge in the bottom of the reservoir, the oil on top is clear.
 
(quoted from post at 12:41:51 02/22/12) Thanks for all the comments.

I buy quite a bit of off brand oil at yard sales, and that"s what I normally use, but I was curious about what others do. I noticed on this tractor, although there"s close to an inch of sludge in the bottom of the reservoir, the oil on top is clear.
Click to expand...

That is exactly how the oil bath air cleaner works. That is what you would expect to find after 50 to 100 hours of tractor work, although that 1 inch of sludge does indicate it is time to service the air cleaner.
 
early CC/L air cleaners said "use thin used engine oil" right on them, wondering if Case realized they could sell more oil as the "used " word dissapeared in the mid 30's
 
(quoted from post at 13:14:26 02/22/12)
(quoted from post at 12:41:51 02/22/12) Thanks for all the comments.

I buy quite a bit of off brand oil at yard sales, and that"s what I normally use, but I was curious about what others do. I noticed on this tractor, although there"s close to an inch of sludge in the bottom of the reservoir, the oil on top is clear.
Click to expand...

That is exactly how the oil bath air cleaner works. That is what you would expect to find after 50 to 100 hours of tractor work, although that 1 inch of sludge does indicate it is time to service the air cleaner.
Click to expand...

Oh yeah, just waiting for a warm day. Plenty of work to do on that one. It came home in late November, and I have an unheated shop. :wink:
 
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