Anyone know what type of oil goes in pressure washer pumps? Is it the same oil as air compressors, or something different? I came across a bottle of oil for those, but it doesn’t specify what is special about it VS any other oil.
Oil For Pressure Washer Pump
- Thread starter Propflux01
- Start date
Usually its Non-Detergent SAE30 oil...sometimes referred to as 'pump oil'
That's all I ever used. My current fill is Supertech from Walmart, under $3/quart if my memory serves me correctly.
Cool, thank you
Non-Detergent SAE 30 oil is fine but NOT an SA. Those pistons can wear, so an SL would be ideal but SN is also good - need some anti-wear.
Mine failed from piston wear, so I blended up my own oil based on 50/50 PAO/POE with a boron based EP and strong anti-oxidants. It's been running for at least 10 years now with no problems.
Mine failed from piston wear, so I blended up my own oil based on 50/50 PAO/POE with a boron based EP and strong anti-oxidants. It's been running for at least 10 years now with no problems.
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I've replaced a lot of pumps for customers, usually they come with a sticker saying 30 ND or just SAE 30, but the last 3 or 4 I've done have come with a tag saying 90w or 75w90, including the pump I put on my own pressure washer. I'm currently on my second season with it running Redline 75w90 since I had some left over from doing the differential in my car. Seems good so far.
I’ve seen a few that say 15w-40. I’ve never seen a ND in that grade
My unit has a Comet pump and I have used their oil.
I think the manual says to use a 15w oil.
I think the manual says to use a 15w oil.
