<div dir="ltr"><div class="gmail_default" style="font-size:small">HI Moose,</div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="">Surprised to hear that there was sludge in the oil when you drained it; I have not experienced that when changing my oil.</div><div class="gmail_default" style=""><br></div><div class="gmail_default" style="">I also thank you for posting this message as it reminded me that I have not changed the oil in my compressor for a long time and need to look for oil. </div><div class="gmail_default" style=""><br></div><div class="gmail_default" style="">I saw this Quincy article on compressor oil options, but it does sound like compressor oil mainly needs to be non-detergent to eliminate carbon build-up (I never could understand why automotive engine oil would create carbon in a compressor which I have to believe runs at a much lower temperature than a compressor, but that is their statement), but also:</div><div class="gmail_default" style=""><br></div><div class="gmail_default" style=""><ul style="box-sizing:border-box;margin:0px 0px 0px 16px;padding:0px;list-style:none;color:rgb(0,0,0);font-family:"Source Sans Pro",sans-serif"><li style="box-sizing:border-box;padding:0px 0px 20px 15px;line-height:1.5em"><span style="box-sizing:border-box;font-weight:700">Heat absorption:</span> Air compressor oil absorbs the heat produced from compressed air, thereby keeping the compressor at a cooler temperature.</li><li style="box-sizing:border-box;padding:0px 0px 20px 15px;line-height:1.5em"><span style="box-sizing:border-box;font-weight:700">Oxidation resistance:</span> Air compressor oil contains additives that delay the oxidation process and acid formation.</li><li style="box-sizing:border-box;padding:0px 0px 20px 15px;line-height:1.5em"><span style="box-sizing:border-box;font-weight:700">Longer life span:</span> The additives in air compressor oil also increase the lubricant’s lifetime, protect machine components when on standby and make the lubricant compatible with a wide variety of conditions.</li><li style="box-sizing:border-box;padding:0px 0px 20px 15px;line-height:1.5em"><span style="box-sizing:border-box;font-weight:700">Viscosity in cold temperatures:</span> Although some oils fail to do their job once the temperature drops, air compressor oil maintains its viscosity even when it’s cold.</li><li style="box-sizing:border-box;padding:0px 0px 20px 15px;line-height:1.5em"><span style="box-sizing:border-box;font-weight:700">Demulsification:</span> Air compressor oil also contains additives designed to improve water separation, which will protect the compressor from water and oil emulsions. This makes it easier for the oleophilic bags to capture the oil later on.</li><li style="box-sizing:border-box;padding:0px 0px 20px 15px;line-height:1.5em"><span style="box-sizing:border-box;font-weight:700">Anti-foaming abilities:</span> When big air bubbles rise to the oil’s surface, foam is produced. This increases oxidation because it exposes more of the oil’s surface to oxygen. Without anti-foaming additives, the oil separators would be saturated by the foam and the air compressor’s life span would decrease. This is because saturated oil separators create a pressure drop, which leads to more energy consumption.</li></ul></div><div class="gmail_default" style=""><br></div><div class="gmail_default" style="">Another article I read recommends these three:</div><div class="gmail_default" style=""><div class="gmail-lwptoc_item" style="box-sizing:inherit;border:0px;margin:0px;outline:0px;padding:0px;vertical-align:baseline;color:rgb(51,51,51);font-family:Arial,Helvetica,Verdana,sans-serif;background-color:rgb(250,250,250)"><a href="https://www.tooltally.com/best-oil-for-air-compressor/#1_Dewalt_Synthetic_Air_Compressor_Oil" style="box-sizing:inherit;font-style:inherit;font-weight:inherit;margin:0px;outline:0px;padding:0px;vertical-align:baseline;background-color:transparent;color:rgb(30,115,190);border:none;text-decoration-line:none"><span class="gmail-lwptoc_item_label" style="box-sizing:inherit;border:0px;font-style:inherit;font-weight:inherit;margin:0px;outline:0px;padding:0px;vertical-align:baseline"><font size="2">1. Dewalt Synthetic Air Compressor Oil</font></span></a></div><div class="gmail-lwptoc_item" style="box-sizing:inherit;border:0px;margin:2px 0px 0px;outline:0px;padding:0px;vertical-align:baseline;color:rgb(51,51,51);font-family:Arial,Helvetica,Verdana,sans-serif;background-color:rgb(250,250,250)"><a href="https://www.tooltally.com/best-oil-for-air-compressor/#2_Royal_Purple_01513_Synthetic_Air_Compressor_Oil" style="box-sizing:inherit;font-style:inherit;font-weight:inherit;margin:0px;outline:0px;padding:0px;vertical-align:baseline;background-color:transparent;color:rgb(129,215,66);border-top:none;border-right:none;border-bottom:1px dotted;border-left:none;text-decoration-line:none"><span class="gmail-lwptoc_item_label" style="box-sizing:inherit;border:0px;font-style:inherit;font-weight:inherit;margin:0px;outline:0px;padding:0px;vertical-align:baseline"><font size="2">2. Royal Purple 01513 Synthetic Air Compressor Oil</font></span></a></div><div class="gmail-lwptoc_item" style="box-sizing:inherit;border:0px;margin:2px 0px 0px;outline:0px;padding:0px;vertical-align:baseline;color:rgb(51,51,51);font-family:Arial,Helvetica,Verdana,sans-serif;background-color:rgb(250,250,250)"><a href="https://www.tooltally.com/best-oil-for-air-compressor/#3_Campbell_Hausfeld_MP12_Standard_Compressor_Lubricant" style="box-sizing:inherit;font-style:inherit;font-weight:inherit;margin:0px;outline:0px;padding:0px;vertical-align:baseline;background-color:transparent;color:rgb(30,115,190);border:none;text-decoration-line:none"><span class="gmail-lwptoc_item_label" style="box-sizing:inherit;border:0px;font-style:inherit;font-weight:inherit;margin:0px;outline:0px;padding:0px;vertical-align:baseline"><font size="2">3. Campbell Hausfeld MP12 Standard Compressor Lubricant</font></span></a></div><div class="gmail-lwptoc_item" style="box-sizing:inherit;border:0px;margin:2px 0px 0px;outline:0px;padding:0px;vertical-align:baseline;color:rgb(51,51,51);font-family:Arial,Helvetica,Verdana,sans-serif;background-color:rgb(250,250,250)"><br></div><div class="gmail-lwptoc_item" style="box-sizing:inherit;border:0px;margin:2px 0px 0px;outline:0px;padding:0px;vertical-align:baseline;color:rgb(51,51,51);font-family:Arial,Helvetica,Verdana,sans-serif;background-color:rgb(250,250,250)">The Dewalt is 20wt and better for start-ups in colder climates. Royal Purple is 30wt and better for warmer climates. The author said for hard working compressors, this is his first choice. The CH is his recommendation for older pumps with more blow-by.</div><div class="gmail-lwptoc_item" style="box-sizing:inherit;border:0px;margin:2px 0px 0px;outline:0px;padding:0px;vertical-align:baseline;color:rgb(51,51,51);font-family:Arial,Helvetica,Verdana,sans-serif;background-color:rgb(250,250,250)"><br></div><div class="gmail-lwptoc_item" style="box-sizing:inherit;border:0px;margin:2px 0px 0px;outline:0px;padding:0px;vertical-align:baseline;color:rgb(51,51,51);font-family:Arial,Helvetica,Verdana,sans-serif;background-color:rgb(250,250,250)">It also says change the oil every 800 hours, or minimally once a year. Unless I am in a major project,  I probably do not get 800 hours of runtime a year, but an annual change will be on the calendar from now on.</div><div class="gmail-lwptoc_item" style="box-sizing:inherit;border:0px;margin:2px 0px 0px;outline:0px;padding:0px;vertical-align:baseline;color:rgb(51,51,51);font-family:Arial,Helvetica,Verdana,sans-serif;background-color:rgb(250,250,250)"><br></div><div class="gmail-lwptoc_item" style="box-sizing:inherit;border:0px;margin:2px 0px 0px;outline:0px;padding:0px;vertical-align:baseline;color:rgb(51,51,51);font-family:Arial,Helvetica,Verdana,sans-serif;background-color:rgb(250,250,250)">Thank you again, Moose for your post; best post of the day for me. I will be changing my oil this week, will be using Royal Purple, and will put a recurring reminder on my Outlook calendar to change it yearly, at least.</div><div class="gmail-lwptoc_item" style="box-sizing:inherit;border:0px;margin:2px 0px 0px;outline:0px;padding:0px;vertical-align:baseline;color:rgb(51,51,51);font-family:Arial,Helvetica,Verdana,sans-serif;background-color:rgb(250,250,250)"><br></div><div class="gmail-lwptoc_item" style="box-sizing:inherit;border:0px;margin:2px 0px 0px;outline:0px;padding:0px;vertical-align:baseline;color:rgb(51,51,51);font-family:Arial,Helvetica,Verdana,sans-serif;background-color:rgb(250,250,250)">Best,</div><div class="gmail-lwptoc_item" style="box-sizing:inherit;border:0px;margin:2px 0px 0px;outline:0px;padding:0px;vertical-align:baseline;color:rgb(51,51,51);font-family:Arial,Helvetica,Verdana,sans-serif;background-color:rgb(250,250,250)"><br></div><div class="gmail-lwptoc_item" style="box-sizing:inherit;border:0px;margin:2px 0px 0px;outline:0px;padding:0px;vertical-align:baseline;color:rgb(51,51,51);font-family:Arial,Helvetica,Verdana,sans-serif;background-color:rgb(250,250,250)">doug</div></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sat, Jan 6, 2024 at 12:19 AM Moose <<a href="mailto:eric@megageek.com">eric@megageek.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><font size="2" face="sans-serif">I have a nice Eaton compressor (7.5HP)
that has been flawless since I got it (not, the first one I got had a bad
weld, but they replaced it, free, right away.)</font>
<br>
<br><font size="2" face="sans-serif">Anyway.  I maybe let the oil go
a little too long between changes, but when I went to change it this time,
the oil was filled with sludge.</font>
<br>
<br><font size="2" face="sans-serif">I use the Eaton oil, and the compressor
is not overworked ever.  It was a pain to clean it out.</font>
<br><font size="2" face="sans-serif">In the manual, it says I can't use automotive
oil (and I can understand that.) but it just has a Eaton part # for their
oil.  No alternatives or specs</font>
<br>
<br><font size="2" face="sans-serif">The problem is that ordering the oil
from them is a pain (you have to fill out a form. Then wait for them to
send an invoice a few days later, then pay the invoice and wait for them
to ship it.)</font>
<br>
<br><font size="2" face="sans-serif">Don't get me wrong, I think they are
a great company, but I wanted to find out if  can get the same (or
better) oil from a place that is a little easier to deal with.  Ideally,
I would love to find the correct oil on Amazon and set up a 'reoccurring
delivery' for every 6 months so it reminds me to change the oil.</font>
<br>
<br><font size="2" face="sans-serif">OR, is their an oil that doesn't turn
to sludge and is easy to change?</font>
<br>
<br><font size="2" face="sans-serif">Again, overall, I am not looking for
a cheaper oil, just one that is easier to get and or better.</font>
<br>
<br><font size="2" face="sans-serif">Thanks!</font>
<br>
<br><font size="2" face="sans-serif">Moose</font>_______________________________________________<br>
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