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Which brand of ATF is best for my primary chain case Mk3, some ATF oilsare nowsyntheticie shell dexron 3 so presume this is not recommend.
Any recommendations welcome.
Cheers
Phil
If this is an 850 Mk3 then…
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If this is an 850 Mk3 then ATF is not really suitable. It is too thin for the hydraulic primary chain tensioner and the result is a chain that is consistently not tensioned.
I use a mineral 10w40 motor oil and haven't had any problems with clutch slip.