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#4590373 - 11/30/17 08:37 PM Compressor Oil
Beem Offline


Registered: 08/31/15
Posts: 14
Loc: CT
I've read various postings in many locations but they are not current in oil recommendations because non-detergent multi grade oils for cold environments are not to be found.
It's in the mid 40s (F) out here (and headed down) and the compressor pops it's circuit breaker trying to start it.
I hate to buy a new oilless compressor but it's that or use a detergent, perhaps synthetic, oil to get in the 5w30 or 0w30 range.
The Emglo manual says 30W or 5W30, bith non-detergent. Thirty weight means no compressor use for the winter unless I concoct a heater.
Any suggestions?

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#4590378 - 11/30/17 08:46 PM Re: Compressor Oil [Re: Beem]
tig1 Offline


Registered: 01/03/09
Posts: 13522
Loc: Illinois
My compressor sets in my unheated garage. I use the semi-synthetic oil from Lowes and add a few oz of M1 10-30. Starts very well in extreme cold. 10 to 15F no problems.


Edited by tig1 (11/30/17 08:47 PM)
_________________________
2007 Ford Fusion 224,000 miles
M1 0-20 EP
2017 Ford Fusion 47K
M1 0-20 EP
10,000 mile OCIs on both engines
M1 ATF and MC LV
M1 10-30 in all OPE
MC filters


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#4590384 - 11/30/17 08:52 PM Re: Compressor Oil [Re: Beem]
Cujet Offline


Registered: 02/15/03
Posts: 6974
Loc: Jupiter, Florida
Believe it or not, good old Mobil 1 automotive oil is recommended in many compressors. I use in in my Porter-Cable compressor. 15 years of daily use, no issues.

It's not uncommon for Northerners to use 0W-20 synthetic in garden variety compressors with very good results and easy starting.

Don't believe the claims that oil with detergents are going to foam, or that they are going to absorb too much water, or that suspended particulates cause wear. There are industrial high volume units that can have deposits from using the wrong oil. That's no concern for the typical small shop compressor.

Again, Mobil 1 is recommended by manufacturers of many very conventional air compressors.
_________________________

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#4590392 - 11/30/17 09:00 PM Re: Compressor Oil [Re: Beem]
demarpaint Offline


Registered: 07/03/05
Posts: 29390
Loc: NY
I use Royal Purple Compressor oil, as per a recommendation here a few years back. I have two compressors in an unheated garage, and the RP oil stopped my 15 gallon craftsman compressor from tripping the circuit breaker in the cold. The 220 V 60 gallon machine works effortlessly in the cold with that oil.
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#4590401 - 11/30/17 09:11 PM Re: Compressor Oil [Re: Beem]
JMJNet Offline


Registered: 09/06/07
Posts: 903
Loc: TX, USA
Did you diagnose the problem with the breaker? Sounds like one of the valve is bad?
_________________________
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  • 1995 GMC Suburban 6.5L Turbo Diesel



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#4590443 - 11/30/17 10:14 PM Re: Compressor Oil [Re: Beem]
BrocLuno Offline


Registered: 09/06/15
Posts: 5219
Loc: Kalifornia Kollective
I been running muti-grade automotive oil in home and shop compressors since the 1970's. Yeah, I know in an ideal world ... But, in the real world if you change once a year, they seem to last for ever. Easy starting too laugh
_________________________
Formerly in marine engineering. In an earlier life I owned my own petroleum tank truck, and hauled for the majors and independent's.

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#4590449 - 11/30/17 10:21 PM Re: Compressor Oil [Re: Beem]
A310 Offline


Registered: 04/16/15
Posts: 319
Loc: Kelowna, BC, Canada
Originally Posted By: Beem
I've read various postings in many locations but they are not current in oil recommendations because non-detergent multi grade oils for cold environments are not to be found.
It's in the mid 40s (F) out here (and headed down) and the compressor pops it's circuit breaker trying to start it.
I hate to buy a new oilless compressor but it's that or use a detergent, perhaps synthetic, oil to get in the 5w30 or 0w30 range.
The Emglo manual says 30W or 5W30, bith non-detergent. Thirty weight means no compressor use for the winter unless I concoct a heater.
Any suggestions?


I use Shell Rotella 15W40 in my three compressors and they are fine.:)

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#4590508 - 11/30/17 11:50 PM Re: Compressor Oil [Re: Cujet]
Linctex Offline


Registered: 12/31/16
Posts: 5702
Loc: Waco, TX
Originally Posted By: Cujet
Believe it or not, good old Mobil 1 automotive oil is recommended in many compressors.


Same here.

15W-50 is all my oil compressors, and have been doing so for over 20 years.

I never could figure out the recommendation for non-detergent oil.

I change it once it starts to get a little darker than new in the sight glass (about every 2 years)
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#4590535 - 12/01/17 12:59 AM Re: Compressor Oil [Re: Beem]
Chris B. Offline


Registered: 03/16/03
Posts: 3409
Loc: Colorado
Is the Harbor Freight compressor oil any good? It says made in the USA. I just bought my first compressor which is the 29 gallon 2 HP one. What would be a good oil to run in the motor? Something that would allow use in very cold temps and also hot weather?


Edited by Chris B. (12/01/17 01:07 AM)

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#4590712 - 12/01/17 08:37 AM Re: Compressor Oil [Re: Beem]
Trav Offline


Registered: 11/20/06
Posts: 18245
Loc: MA, Mittelfranken.de
Quincy has this to say..

Quote:
Factors to Consider When Choosing Air Compressor Pump Oil

When choosing an air compressor oil, the first thing to consider is the compressor’s oil viscosity requirements. An SAE 30 weight oil is recommended for compressors that operate in conditions where the temperature ranges from 34° to 100° F. An SAE 20 weight oil is the better choice for colder conditions. Other factors to consider include:

Ability to protect against rust and corrosion
High oxidation stability, which helps to maintain viscosity and extend oil service life
Ability to shed water (demulsibility)
Whether it can be sufficiently filtered without depleting essential lubricant additives

While you should use your manufacturer’s specifications as a guide, choosing an oil that exceeds the minimum specs can result in better performance and, ultimately, longer compressor equipment life.


Redline Polycomp 20w is a good choice for home compressors that see cold weather use.


https://www.pegasusautoracing.com/productselection.asp?Product=RL006
_________________________
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#4590762 - 12/01/17 09:22 AM Re: Compressor Oil [Re: Trav]
Chris B. Offline


Registered: 03/16/03
Posts: 3409
Loc: Colorado
Originally Posted By: Trav
Quincy has this to say..

Quote:
Factors to Consider When Choosing Air Compressor Pump Oil

When choosing an air compressor oil, the first thing to consider is the compressor’s oil viscosity requirements. An SAE 30 weight oil is recommended for compressors that operate in conditions where the temperature ranges from 34° to 100° F. An SAE 20 weight oil is the better choice for colder conditions. Other factors to consider include:

Ability to protect against rust and corrosion
High oxidation stability, which helps to maintain viscosity and extend oil service life
Ability to shed water (demulsibility)
Whether it can be sufficiently filtered without depleting essential lubricant additives

While you should use your manufacturer’s specifications as a guide, choosing an oil that exceeds the minimum specs can result in better performance and, ultimately, longer compressor equipment life.


Redline Polycomp 20w is a good choice for home compressors that see cold weather use.


https://www.pegasusautoracing.com/productselection.asp?Product=RL006



How well would the 20w do in summer? Thanks!

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#4590847 - 12/01/17 10:43 AM Re: Compressor Oil [Re: Beem]
BrocLuno Offline


Registered: 09/06/15
Posts: 5219
Loc: Kalifornia Kollective
0W-30 will do fine all the time smile
_________________________
Formerly in marine engineering. In an earlier life I owned my own petroleum tank truck, and hauled for the majors and independent's.

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#4590954 - 12/01/17 11:54 AM Re: Compressor Oil [Re: Chris B.]
Trav Offline


Registered: 11/20/06
Posts: 18245
Loc: MA, Mittelfranken.de
Unless the thing is running longer cycles on a regular basis (30 min or more) it will run fine on synthetic 20w. unlike a car engine there is no combustion that generates a lot of heat, these are usually splash oiled up to about 7.5 HP and use roller or ball bearing on the crank so its not hard to lube it.
_________________________
ASE L1, Master. Deutsch Meisterbrief.

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#4590995 - 12/01/17 12:39 PM Re: Compressor Oil [Re: Beem]
9050lx Offline


Registered: 11/07/08
Posts: 101
Loc: FL
Ingersol Rand synthetic is sold at some Tractor Supply locations.

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#4591049 - 12/01/17 01:36 PM Re: Compressor Oil [Re: Beem]
bmwtechguy Offline


Registered: 06/15/04
Posts: 2665
Loc: South Carolina
I have been using Amsoil's ISO 46 in winter and the ISO 100 in summer. The 46 is more of an SAE 20 and the ISO 100 is more of an SAE 30 or 40. Has been working for me for 15 years.

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