"VITO" wrote in message
om...
what variety of oil should i select for the pressure washer pump. I
haven't changed it yet this year. We have a Karcher 3500 hd. i'm sure
it's detergent free

Pressure washer pumps usually call for 30 weight non-detergent, which is
hard to find sometimes.
Home Depot sells plastic bottles of pump oil made for pressure washers.

Eisboch