The 3100psi Residential Series Power Washer will have an oil capacity of 20 ounces (0.6 liters). The “H” on the dipstick is the high (full) mark. When adding oil, it should be added to the “H” marking. Please note that these units are tested at the factory, and there may be oil left in the crankcase. Always utilize the dipstick when adding oil to ensure that the unit is not overfilled.
During operation, when the oil level reaches the “L” mark, that means the oil level is low, and oil should be added. The oil capacity information, as well as other specifications for this unit, are located in the Product Specifications section of the owner’s manual. To locate a copy of the owner’s manual online, search the model or serial number for the unit here: http://www.generac.com/Service/Manu...
answered 2 years, 11 months ago