Gday All, the standard ATF oil in cars is a 10 grade, but you can get multigrades or straight slightly heavier if you desire. Multi grades as follows; 5w-30 ; 10w-30 and striaght 30 ; 50 and 60. The discussions on oil is endless..........
I probably will use the same oil I use in my 350 HP tractors, sold as a 10 but it specs out at 30. You could also blend your own maybe mixing 50/50 of both gear and ATF if you think 10 is too lite?
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