Used since 2016. Same viscosity as tuthills more expensive oil. Wish it was tinted and not clear to help with checking oil levels in my small sight glasses and came in the quart easy packs like some gear oils do

No problems got what I paid for.

WORKS WELL IN OLDER MACHINES (30 YR OLD CHAMPIONS) EVEN THOUGHT ITS FORMULATED FOR NEWER TECH

Faster recovery of air from my 15yr old compressor. I was using just a conventional synthetic. Proper oil now.

I used this oil as a wipe-down in newly refinished and dry cylinders in a 2 stage pump. The drag was reduced and almost eliminated. In the crankcase, rod bearings are quiet and the rings are sealing well resulting in fast pressure build even though it is a 20 weight oil. I'm impressed.

Que ce soit pour l'industrie ou pour votre machinerie à la maison ou votre voiture, rien n'égale Amsoil, ne vous faite pas avoir avec les marques commerciales qui vous disent 100% synthétique, c'est une pur Arnaque, la vraie de vraie, c'est AMSOIL !!!!!

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Great oil for my Ingersoll Rand compressor and a lot cheaper. Can't go wrong with Amsoil.

Great product

Best compressor oil ive used.

Amsoil compressor oil used in a freshly built compressor, very tight. After initial start up compressor runs until it hits 150 psi then shuts off, you could put your hand on the cylinder that was barely warm.

My air compressor had a had times starting in cold Temps. I added this oil and the compressor fires right up when cold. I wasn't surprised, everything I own has AMS!

Anything that is Amsoil is awesome

Like i said perfect for my big shop air compressor, been using it for years, change it after winter every year, no issues never sludging up. Actually looked good changing old oil, but in NC the moisture pprobably gets into the oil over time, so best to be safe and change it even if it looks good still. Its worth every penny!

I am not a scientist, and I did not do any studies, so I can only go by what claims have been made of synthetic lubricants. I am hopeful that this product will help my compressor to last longer, but how can I really know for certain. I am hopeful that it will help. I will say the AMSOIL company did process and ship my order quickly. So, I am happy about that. Maybe in the future, the consumer will see real data to confirm whether synthetic lubricants actually warrant the higher prices. I see much marketing claims but is it entirely accurate? I do remain hopeful. Thank You AMSOIL.

It is good stuff, it works. My compressors like it, and they appear to run better.

Started using this in my compressor 4-5 years ago. Compressor is smoother and runs cooler than ever before.

Used on My Speed air compressor. Runs well with this oil.

I got the to change the oil in my portable Ingersoll Rand compressor and the 80gal 5hp IR compressor. everything still works like new! I just ordered some for a friend to use in his Quincy 80gal compressor. Its a great oil, and see no reason to use anything else!

I replaced the break-in oil in my Home Depot Husky compressor when new. 15 years later I decided it was time to change it again. The oil drain was only slightly discolored which is normal and probably could have been left in for life. There were no metallic particles visible in the oil. AMSOIL makes the best lubrication products for my equipment. If you want it to last forever, use AMSOIL.