At which temperature does an oil flow better?
There is no temperature where oil suddenly starts to flow better.
A 10W/40 for example will flow between -25C and 100C or more, but there is some difference in the rate of flow! (True viscosity at -25C is about 7000 Centistoke(cSt) units, dropping to 14 at 100C.
Interesting Oil Facts #2
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