For 33 years I have been rebuilding my water proof stainless steel septic aerator motor and filling it with a vendor supplied oil. That vendor has gone out of business, and for the life of me I cannot find a reasonable source for gallon quantities of a motor/dielectric/transformer oil that is around ISO10 to 14 or about 12 cSt at 40 degC.
I currently have it filled with Dextron III ATF, but my Zahn cup measurements show the ATF at about twice the room temperature viscosity of the remaining sample I have of the "good oil."
I have found many ISO32 ish analogues, like mineral oil based refrigeration compressor oil, but would like something with 1/2 that viscosity for energy savings. This motor runs 24/7 so those watts add up over 30 years!
Any suggestions, alternates or work arounds appreciated.
I currently have it filled with Dextron III ATF, but my Zahn cup measurements show the ATF at about twice the room temperature viscosity of the remaining sample I have of the "good oil."
I have found many ISO32 ish analogues, like mineral oil based refrigeration compressor oil, but would like something with 1/2 that viscosity for energy savings. This motor runs 24/7 so those watts add up over 30 years!
Any suggestions, alternates or work arounds appreciated.
