When should I change the oil in my pressure washer pump?
When should I change the oil in my pressure washer pump? If you purchased a brand new pressure washer, it is recommended that you change the pump oil after 10 hours of operation. If you plan to use your machine frequently, you'll want to do routine maintenance on it and change the oil at least every three months. What kind of oil is in a pressure washer pump? Most pressure washer pumps use SAE 10W-30 or SAE 10W-40 oil. However, you should always check the manufacturer's recommendation for pump oil, and avoid using your pressure washer on freezing-cold winter days...