*PLUMBERSSTOCK EXPERT* responded:
Thank you for asking us at Plumbersstock.com about the MI-T-M CM-3200-0MMB! You can use any 30-weight non-detergent oil for the pump. We have the Milwaukee 45-00-9000 pressure washer pump oil and the MI-T-M AW-4085-0016 pump oil for pressure washers that you can choose from. To begin the ordering process, please click the Add to Cart button, enter your zipcode and your billing information, and we will take care of the rest.