Google Groups no longer supports new Usenet posts or subscriptions. Historical content remains viewable.
Dismiss

Air compressor lubricant

38 views
Skip to first unread message

HLS

unread,
Jun 6, 2008, 3:10:24 PM6/6/08
to
I have been given an older air compressor, and have no documentation on it.
The oil in the compressor is black and has some water in it, so I am washing
it
out with tranny fluid and allowing it to drain clean.

What would you guess is the best oil to put back into this compressor?
30 weight non detergent? Or does it really matter very much?

Mike Romain

unread,
Jun 6, 2008, 3:27:52 PM6/6/08
to

They usually take compressor oil. That's what mine calls for. The dino
oil version isn't much good below freezing, likely that 30 weight so if
you want winter use a synthetic works best.

I would see if the company that made the compressor is still around and
check there.

I checked the imperial oil site, and they sell a bunch of compressor
oils dependent on the type of compressor.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
'New' frame in the works for '08. Some Canadian Bush Trip and Build
Photos: http://mikeromainjeeptrips.shutterfly.com

Paul

unread,
Jun 6, 2008, 3:33:57 PM6/6/08
to

I have a 220v , 2 stage compressor.
I use:
Dayton Air Compressor OIl
Model A-???88A
SAE 30
*Rust and corrosion protection
*Excellent oxidation and thermal stability
*Anti-foam protection
*Non-detergent
*Resists carbon formation
*Harmful or fatal if swallowed
*Avoid contact with skin or eyes!!!

HLS

unread,
Jun 6, 2008, 3:46:45 PM6/6/08
to
Thanks all. Compressor oil shouldnt cost very much (uses less than a quart)
if I can
find it here in One Horse, Texas.

cuh...@webtv.net

unread,
Jun 6, 2008, 4:19:16 PM6/6/08
to
About a year ago, I gave my old twin cylinder Sears Craftsman air
compressor to an old buddy.That air compressor was leaking oil into the
air line.I bought a new oiless air compressor.
cuhulin

BobJ

unread,
Jun 6, 2008, 8:28:38 PM6/6/08
to

You bought a new oiless compressor???? Sorry, buddy, but
you bought a P.O.S. If it lasts a year you'll be lucky....
If you can put up with the noise you're probably half deaf
already...
These compressors use a teflon coated piston that will
fail quickly especially if put under any stress....

Scott Dorsey

unread,
Jun 6, 2008, 10:10:31 PM6/6/08
to

One Horse, Texas is where they MAKE the oil.

Try Royal Purple. They have some excellent compressor oils, and they
are somewhere in Texas too.
--scott
--
"C'est un Nagra. C'est suisse, et tres, tres precis."

Message has been deleted

Harry Face

unread,
Jun 11, 2008, 12:10:59 PM6/11/08
to
Sears, Wal-Mart, Ace Hardware, Home Depot should have compressor
oil.........you got to have one of these stores in one horse Texas. If
not go to two horse Texas. If they don't have try the shack out on La
Grange...


good luck,

harryface

Steve

unread,
Jun 12, 2008, 1:31:05 PM6/12/08
to

Home Depot (and all sorts of other places) sell "compressor oil." My
guess is that its 30-weight non-detergent with minimal additives. It
smells/looks/feels a whole lot like the clear type of power steering
fluid. Its also probably more readily available than straight 30-weight
non-detergent oil these days.

The most critical single thing is to use a non-detergent oil so that it
doesn't entrain water that blows by the compressor rings in the form of
vapor, and then re-condenses in the oil. You want that to settle to the
bottom of the sump and stay there. All other characteristics of the oil
are really secondary.

Steve

unread,
Jun 12, 2008, 1:34:25 PM6/12/08
to


My cheap old Campbell-Hausfeld -HP oilless compressor is probably about
15 years old by now. Nary a problem. It doesn't get daily hard use, but
its seen a LOT of hours over that 15 year period. Oilless compressors
are a lot better than they were 30 years ago. I also have an even older
5-horse 2-cylinder compressor (oil type) that does the heavy work like
running the blast cabinet, grinders, cut-off wheels, and most painting,
but the oilless one is a lot easier to haul around.

cuh...@webtv.net

unread,
Jun 12, 2008, 2:37:55 PM6/12/08
to
Some industries such as food industries and pharmacetical industries and
hospitals have to use oiless compressors.Just like many other things,
air compressors come in a wide range of quality and prices.

Those old Jiggs and Maggie cartoons of many years ago in the comic books
and newspaper comic strips,,, (I remember them well) back in the 1950s
Ford used to have some great big Jiggs posters on the walls or hanging
around in the Ford factories of Jiggs saying, SURE, AND QUALITY COUNTS!

I am sold on oiless air compressors.Have you ever tried to spray paint
something and oil is in the air line? I can tell you it doesn't work!

I think 30 weight motor oil for the kinds of air compressors that are
lubricated with oil is as good as anything else.That is probally what
the gas stations/service stations/auto repair shops many years ago used
anyway.The oil cap on the Briggs & Stratton engine on little walk behind
lawn mower says to use 30 weight oil.
cuhulin

larry moe 'n curly

unread,
Jun 12, 2008, 3:37:23 PM6/12/08
to

BobJ wrote:

> cuh...@webtv.net wrote:

> > About a year ago, I gave my old twin cylinder Sears Craftsman air
> > compressor to an old buddy.That air compressor was leaking oil into the
> > air line.I bought a new oiless air compressor.
>

> You bought a new oiless compressor???? Sorry, buddy, but
> you bought a P.O.S. If it lasts a year you'll be lucky....
> If you can put up with the noise you're probably half deaf
> already...
> These compressors use a teflon coated piston that will
> fail quickly especially if put under any stress....

I have a 12-year-old 6.1 CFM @ 90 PSI Campbell-Hausfeld oilless. It
is very noisy but otherwise works fine. Could it be that some
people's oilless compressors fail quickly because they don't break
them in? The instructions for mine called for running the thing for
30 minutes at zero PSI before putting it to regular use.

mr158912

unread,
Jun 13, 2008, 9:41:41 PM6/13/08
to
oil is not burned in a compressor so if it is black expect a failure in the
future
dirt is getting by the rings and into the oil

cuh...@webtv.net

unread,
Jun 13, 2008, 11:45:31 PM6/13/08
to
Gasoline engines and Diesel engines are nothing more than gloryfied air
pumps.Think about it.
cuhulin

HLS

unread,
Jun 16, 2008, 12:56:51 PM6/16/08
to

"Harry Face" <Harryf...@webtv.net> wrote in message
news:10049-48...@storefull-3318.bay.webtv.net...

That little shack out near the underpass? ;>)
Ol' Marvin sure got stuffy about having a chicken ranch operating in Texas.

disston

unread,
Jun 17, 2008, 3:25:42 PM6/17/08
to

Use 30 or 40, if it's really old and worn, non-detergent. You may have
trouble getting 40 so you'll be stuck with the 30 wt. You can also add
that Lucas oil additive product, oil stabilizer, I think. It is heavy
in molibdenum. If you get oil in the lines build a trap, drain and add
a good filter.

disston

Steve

unread,
Jun 18, 2008, 11:13:14 AM6/18/08
to
disston wrote:
>
> You can also add
> that Lucas oil additive product, oil stabilizer, I think. It is heavy
> in molibdenum.


Lucas oil additives = no way in hell in anything I own:

http://www.bobistheoilguy.com/images/lucas/lucas.htm

0 new messages