Non -Detergent Oil

[GRA]

I'm changing the oil in the pump on a pressure washer and the book says use non detergent oil. I was wondering if synthetic oil was non detergent? How about diesel engine oil?

[Whoaru99]

All current spec automotive, diesel, motorcycle, etc. engine oils are detergent-type regardless if conventional or synthetic.

Places like Fleet-Farm usually have non-detergent oil. It will say so right on the label. Usually it's in the section by the house brand oils.

[Tom7227]

I bought some at the area where they sell the pressure washers and it was marked as being for them. Try that.

[theoilman]

Yes, all of today's engine oils for gasoline and diesel engines are high detergent. To get non-detergent it has to be 'SA' or 'SB' only rated - which can be rare to find anymore.

AMSOIL Compressor Fluid/Oil, when you read the full data sheet, is perfectly suited for pressure washers, as well as air compressors. (It is non-detergent.)

[delcecchi]

I am pretty sure Fleet Farm sells non detergent oil right next to the detergent stuff.