AGCExplorerJun 20, 2016Oil for Onan 3200QDJust got my RV and it has an Onan #200 QD generator. Wanted to know what kind of oil it uses Thanks
coolbreeze01ExplorerJun 20, 2016I use M1 0w-40 year-round in my 4K Onan. Be sure and run it at least once a month or more often under load.
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