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Clark Michigan 85A Series II - transmission fluid 10w straight vs 10w-30

R

RR88

New Member
Joined
Dec 10, 2023
Messages
1
Location
Sweden
Hi everyone.

My question would be: If a 10w straight oil is good from 0 F and upp, would not a modern 10w-30 multigrade oil maintain an ideal viscosity over a wider temperature range?

Or can anyone tell me why a multigrade oil would be a bad idea?

Thank you if your read this far.
/Rasmus
 
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