DEWALT Compressor Oil, 1-Quart (D55001)

I purchased a Craftsman Professional 27-gallon vertical compressor, with the American-made Devilbiss tank, which has suited my needs beautifully. Of course, the manual states you should change the compressor oil every 6 months or so and in small print on another page, they say you MUST use a synthetic compressor oil. Bummer. All that Sears sells is dino oil and I bought four bottles of it on sale because the showroom rep told me I'd need it. Realizing he sold me what literally amounted to snake oil, I took the bottles back to Sears and after arguing the point with a manager, got a store credit. Fine, whatever. Off to the internet, and of course, Amazon didn't let me down. I found the DeWalt synthetic, did an oil change (and an air tank petcock change while I was at it). The old oil was original and had tiny metal flakes in it (probably because I had to top 4 oz off with the dino stuff during break-in). With a full tank of new DeWalt synthetic oil, the compressor runs like a WHISPER! I thought it was quiet before, but WOW! It's just a lovely putt-putt-putt-putt-putt when it's running now. I couldn't be happier. Pricey? Yes. Worth it? Absolutely. :-) FOLLOW-UP - 8 months later: I recently used my Aircat angle grinder to strip the powder coat off a 10-square foot piece of metal (the bottom plate of a synthesizer I'm restoring). It took about 3 hours and 5 roloc discs to get the job done and the end result was superb. The compressor ran non-stop for almost 2.5 hours at one point just to keep up. The next day, I had a look at the oil and it still looks as good as new. I'm totally sold on this DeWalt synthetic stuff.

It is full synthetic. I put it in my air compessor.

Used this to replace the long over due oil in my Makita mac700 and Chicago Pneumatic rcp220p belt drive. The Makita shipped with a 20w P68, ran well in most MN temps. Unfortunately 20w compressor oil is really hard to find, Amsoil makes one. The CP shipped with an thick 40w, honey like. Always started very hard on 110v, often blowing the breaker. Cold or winter forget about it. Frusterated with it, I rarely used it. My hope is this Dewalt Syn Compressor 30w oil will cover both well. The Makita seems to run well the on the thicker oil. The new oil seems just as fluid as the 20w that came out. The CP runs really well so far, cooler it seems and a bit quieter. Id suspect the thinner oil is helping alot with the typical ambient temps of MN. Dewalt makes what looks to be similar compressor so I figure this is ok.

I'm sure you can be cheap and use a comparative oil .... But I'd rather be safe than sorry

Not bad oil, most all reciprocating piston air compressors could run this oil. For those that don’t know your looking for a non detergent oil usually SAE30 weight. Sometimes you need to check on the ISO number. I think my ingersoll units at work take a iso 128, all season. You should know if you switch from mineral base oils to synthetic you may cause a washing effect on the compressor and need to change to oil again after a short period. Non detergent compressor oils do not wash out all the debris from the crankcase. Other suitable oils would be speedair recip oil, iso 100, 30w, mineral or synthetic, Mobil rarus 427.

Good quality product.I like the fact it is blue,dont know why. Good price

Ace sells compressor oil for about $7.00 a quart and from what I can tell from A LOT of research, it is all the same with the exception full synthetic. What has been used in compressors for the last 80 years? "Non Detergent, 30Wt" and there is a lot of miss-information out there. I have owned a couple of used compressors that the previous owners have used regular 30Wt auto oil on, and you know what you get when you use this stuff? Open up the release valve on the air tank and you not only get air, but you get oil. (Not what you want) The claims from this guy and that on the internet are almost comical in there ramblings of what they have used over the years, and then you get their used junk. A new compressor will last a good while on the wrong oil, but sooner or later, 0-rings and gaskets wear out from the extra heat the regular oil creates, or the corrosive action of the auto full synthetic (which is a detergent oil). If the manufacturer recommends full synthetic then use that type of compressor oil. If the manufacturer recommends compressor oil then you can get away with the Ace type oils at about 1/3 the price. The reason I rated this synthetic compressor oil at only four stars is because of the price and as a matter of fact the price of ALL full synthetic or conventional compressor oils. The price is overly inflated. If you need a full synthetic, then this is the one to get. If you want to pay more, then get Royal Purple. One more thing, if you are rebuilding the pump (rings,reeds,gaskets) run the non synthetic in the compressor for a few hours to let the rings seat, and make sure you hone the cylinder/s.

This item came on time and as advertised Thanks

Se ve bueno, lo malo que esta hecho en china . Pero confío en amazon

So I bought this oil not for the cold weather performance but because I bought an old air compressor that I think was neglected so I figured using a synthetic compressor oil would be beneficial. I really can't say anything good or bad about this oil. It's very blue and seems to work perfectly fine. I didn't notice any changes in the compressor sound so yeah that's about all I can say...

funciona perfecto para compresor de alta precio para PCP

Compressor breaker would always switch off in the cold. Ever since i added synthetic oil it starts up no problem and runs quieter. Great product would recommend!

Both of my air compressors sound pretty happy.