Besides Rotella, are there any other 30wt brands that are strong? The Kohler books states 30wt and nothing else. Kohler makes their "Magnum" 30wt oil especially for this motor. Any thoughts? I assume I want a high Z level as its still flat tappet.
Thanks! I assumed I need something with a little more Zap being that its air cooled and having it an old style L head version. I would run the Magnum oil but nobody sells it locally. I see alot of Generic 30WT oil at like TSC and house brands but thats about it (I saw 30WT Briggs) Oil yesterday but I assume thats probebly run of the mill as well. Thanks for the tips.