oil - air compressor

[ss2]

what do you recommend for oil for the compressor pump?
seems i read somewhere that synthetic was best.
2 stage pump with a 5 hp motor.
thanks...

 

[HybridG]

yes it is, your manual would be the best resource, what type of compressor do you have?

mine calls for synthetic 10w30 mobile 1


hybrid

 

[mulepackin]

We use Mobil Rarus Synthetic in our big two stage. Enco is where I've ordered it. I use Campbell Hausfeld brand in my small shop compressor (it is a CH).

 

[SteveU]

I use Amsoil PCK in mine, works from below 0*F to over 100*F which pretty much covers any temp we will ever have. They claim it can be used for up to 8000 hrs so even if I get real conservative & change it at 500-750 hrs, the case I bought will last a lifetime as a weekend type guy. Definitly go with a synthetic, you won't need it for cold but it will help with hot temps in MS. My 22-25 amp plated Eaton draws 19.5 amps using it though I didn't have a clamp meter to test it before switching to the synthetic. The extra couple bucks per Qt won't really matter considering the amount it holds (less than 2 qts), is cheap insurance & MAY help the pump last longer.

 

[ss2]

yes it is, your manual would be the best resource, what type of compressor do you have?

mine calls for synthetic 10w30 mobile 1


hybrid

i just purchased this unit. the manual is suppose to be in the mail headed this way.
it is a Montgomery Ward.
model number: 75 6548C (questionable - uncertain)
has a Doerr 5 hp. - 3ph. - 1740 rpm.
this is basically all the information i have at this time.
thanks, s2

 

[edl]

my manual says to use a "compressor grade [whatever that means] non-detergent oil"

why the non-detergent? - i can understand if you have an old machine that this will remove carbon deposits - but if the unit is new and you use non-detergent oil from the start?...

 

[MXtras]

Look at Rarus air compressor oil from Mobil. Very good stuff - and yes there IS a difference between this oil and engine oil.

I think MSC or Mcmaster carries it.

Scott

 

[jimk100189]

I recently published an article on my blog on compressor maintenance that includes a link to download a compressor oil study

Hope its helpful

 

[Crazy Legs]

so i'm confused, can you run just regular Mobile 1 car oil in my craftsman 2 stage? (its brand new other than break in oil)

 

[MXtras]

so i'm confused, can you run just regular Mobile 1 car oil in my craftsman 2 stage? (its brand new other than break in oil)

I did just that for many, many years until I decided to try compressor oil. Now, I would not suggest using motor oil in a compressor.

Scott

 

[Vicegrip]

Granger has the compressor oils too. I run conventional Mobil compressor oils in the eight 25 HP compressors at work. The manu calls for it and I don't plan on arguing with them.

 

[edl]

guys - if my manual simply says "use compressor grade non-detergent oil" - what fits that bill that you all would recommend? - thanks! ed

p.s. is there any downside to changing oil frequently (wearing out rubber stuff in side the motor? other?)...

 

[ss2]

well here is what i have decided after reading the responses here and searching elsewhere.
Grainger sells a lubricating oil that is specifically made for reciprocating air compressors. it is made by Exxon/Mobil - Rarus 427. Grainger# 4F978.
the compressor i have is a Dayton/Speedair - model#3Z180 which Grainger sells as well.
thanks to all for their responses and comments.

be safe, wear protection when near a liberal.
don't waste a good cigar. smoke em' if you got em'.

 

[Franz©]

SS2, I don't want to break your heart, but Grainger never manufactured a damn thing. That jug is a Champion in my estimation, and the pully on the motor is too large. Unless you absolutely need to push that machine to the maximum I'd drop the speed down for another 20 years of life on the machine.

As far as what kind of slippery juice you put in it is concerned, 1-800-645-5823 (1-800-OIL-LUBE) for Technical . Tell them what you have and what you want it to do and the slippery stuff will be on the way, probably at a lower price than Grainger will charge. DA ain't been wrong in over 50 years I been using their products in a hell of a lot more expensive machines than that compressor.

 

[aarcuda]

they sell air compressor oil at O'Reillys auto parts and many other auto parts stores

 

[Hades12]

My new one calls for the same thing, 30 weight Non_detergent, Picked up CH brand at Lowes, used a 16 oz regular to flush it out and then up in a synthentic of the same brand.

 

[SteveU]

well here is what i have decided after reading the responses here and searching elsewhere.
Grainger sells a lubricating oil that is specifically made for reciprocating air compressors. it is made by Exxon/Mobil - Rarus 427. Grainger# 4F978.
.

The 427 should work well for you where you are at. It is not a synthetic & won't work in northern temps like we have here but will do good at 50+ which would probably be cold where you're at. Talking about a high in the single digits here over the weekend & with my compressor in an unheated barn I NEED the low temp properties of synthetic.

 

[ss2]

SS2, I don't want to break your heart, but Grainger never manufactured a damn thing. That jug is a Champion in my estimation, and the pully on the motor is too large. Unless you absolutely need to push that machine to the maximum I'd drop the speed down for another 20 years of life on the machine.

As far as what kind of slippery juice you put in it is concerned, 1-800-645-5823 (1-800-OIL-LUBE) for Technical . Tell them what you have and what you want it to do and the slippery stuff will be on the way, probably at a lower price than Grainger will charge. DA ain't been wrong in over 50 years I been using their products in a hell of a lot more expensive machines than that compressor.

hi Franz,
according to the manual (waiting via USPS) it is a Champion. recently inspected another pump which was almost identical to this one. it had a Dayton/Speedair tag with model & serial numbers. Graingers web-site lists parts replacement for this.
thanks for the "OIL-LUBE" number. will give them a call.
i appreciate the advice and information.
s2