Compressor oil

[Stormin Mormon]

One place I work, has a huge compressor. Three phase, from what I can tell. Crankcase, and sight glass. I don't see an oil level in the crankcase. The fill plug (big knurled thing) didn't want to come out. I'll put a Channelocks on it tomorrow, if I have time. Shine my minimag into the crankcase, and see if I see any oil in there. Light up the sight glass window from inside.

So, don't those beasts typically take ND-30 motor oil? Yeah, they probably make something specific for crankcases, and sell it in 4 ounce bottles so they can charge more.

[Bob F]

I got compressor oil in a gallon jug.

Try a compressor shop.

[Stormin Mormon]

Reminds me of the joke about Prince Albert in a Can. Yes, a compressor shop is the correct source, from the horse of course.

The use, here, isn't likely to need a galon.

[zxcvbob]

You can buy it at Walmart if you know what to look for: "SA" rated 30wt motor oil (the cheap non-detergent stuff.) You have to look for it cuz there will be just one brand, and it's not conspicuously cheaper)

Bob

[Rudy]

Yep

HFT sells it in Quarts..wait til they re on sale or try to find ND 30W at Auto supply

[Ed Pawlowski]

Check out

for oils by the gallon of 5 gallon pail. There is also a synthetic oil that will cost about $50 a gallon.