-Every Year or 100-200 hrs

-Full Synthetic Oil, Genuine OEM Oil Filter, Genuine OEM Air Filter, and Genuine OEM spark plug(s)

-Required every 4 years/400hrs for most Generacs

-Adds Valve-Lifter Adjustment to Factory Spec (if applicable) , Engine Health Test (compression), and Battery Health Test (CCA)

-Genuine OEM Valve Cover Gasket, Full Synthetic Oil, Genuine OEM Oil Filter, Genuine OEM Air Filter, and Genuine OEM spark plug(s)

-Oil and Oil Filter Only*

-Every Year or 100-200 hrs

-Full Synthetic Oil, Genuine OEM Oil Filter

*not manufacturer recommended