The recommended oil for the 7 kW, 12 kW and 15 kW air-cooled units is 10W-30 temperatures above 20° F. Use 5W-20 or 5W-30 for temperatures below 20° F. After the first oil change, all-season 5W-30 synthetic oil may be used. API Service Class SG, SH or SJ should be used in all cases. The recommended oil for the liquid-cooled units is 15W-40. All oil should be SAE rated high detergent oil that meets API Service Class SF requirements for gasoline engines. If the engine has been serviced before and filled with conventional oil, then refill it with conventional. It’s important not to mix the synthetic and conventional oil. It can damage your engine.
Was this answer helpful ?
Yes
/
No