RE Quincy air compressor?

[RalphWD45]

I went to change the oil, in my used Quincy 325 18 air compressor, and didn't know what oil to buy.I called NAPA, and they had Amsoil compressor oil, in two weights, 20 wt, and 30-40. It is pricey, but I need it now. I have some sand blasting, to do, and it uses a lot of air. any advice on what weight oil, to buy? Thanks!

 

[glennster]

if the weather is hot, run the heavier oil. cold weather in an unheated shop!use the lighter oil.

 

[Hobo,NC]

I run Ingersoll Rand's All Season Select in all my compressors my local TSC has it. Its expensive everywhere : (

 

[Hobo,NC]

Years ago I ran straight non detergent 30wt motor oil I never had an issue other than it got milky over time. I picked up an about new Ingersoll Rand compressor it came with quite a bit of Ingersoll Rand select oil I switched everything over to it... If you don't go with a compressor oil use non detergent motor oil...

 

[Dennis Minn]

Ralph,

Rarus 46? mobile product comes to mind. I have to check at work to be sure.
Works great for our Quincy compressors. They are decades old.

D.

 

[Russ from MN]

Rarus 46 is what we used in the paper mill compressors.

 

[Steve@Advance]

If the compressor is inside and protected from extreme cold, I would go with the 30 weight.

Is the Amsoil synthetic? Synthetic is what you want, synthetic reciprocating compressor oil.

I used to maintain 4 compressors, 3 were very old but heavy duty, the newest was still good enough it didn't use oil, but the older ones were forever carboning up the valves with non detergent petroleum oil. Once I switched to synthetic the problem went away and oil consumption dropped to near nothing.

 

[CenTex Farmall]

They are mighty proud of that stuff.

 

[RalphWD45]

The compressor is outside of the main shop, on a new 4" slab, we poured, to lag it down on. I only made a basic lean to, building 6'x8', coming off my shop, with a corrigated metal roof. I didn't want to give up space in the shop, and wanted to quiet things down. I may still, hang some foam insulation on the walls, to try to muffle it. I left the bird blocks out of the eve, so air could flow. If birds give me trouble, then I might put wire over them. We don't have extreme cold here, maybe zero to -20 on rare occasions I just had to punch some holes in the shop walls, for conduit and pipe, only needed 10 ft of wire, to reach the shop panel. I still have to make a 6' door to close the end.

 

[RalphWD45]

I never thought of TSC, and we have one locally. I think I will check with them tomarrow, I hope it is synthetic!

 

[Hobo,NC]

Go online and check my local TSC list 8 in stock. The last I brought a few years back was $86 TSC list it now for $99 @ gal.

 

[Destroked 450]

According to Quincy service manual your compressor should use SAE20W oil or ISO68 hydraulic oil in 32-80 degree weather.
They also mention their own Quin-Clip oil which should be available at Rural King since they sell Quincy compressors.

It takes a bit of searching but you can download the operators and parts manuals for your compressor from their web site.
Look at the tag on the side of the pump for the Record of Change Number, that identifies what pump you have and gives a idea of when it was made.

My is a record of change #12 making it a 72 model.
The 325 pump is oil pressure lubricated and completely rebuildable including boring the cylinders for oversized pistons and regrinding the crank for undersized bearings

 

[1948CaseVAI]

Local Home Depot advertises gallon of Powermate 100% synthetic compressor oil for $37 and change. Not sure how their pricing works - I looked it up online in Wichita KS and that was a "ship to store price." They have 16oz bottles for about $7 in stock at the store.

 

[hd6gtom]

In the tire shop we only used Ingersol Rand compressor oil. Cheap compressor oil is like using cheap motor oil. You pay for it in the end.