I may be all wrong about this since it has yet to come up, but I've
always thought the reason for changing oil hot was:
Get all moving parts to normal running clearances, ie: bearings
Get more oil into bearings, valve train, timing chain etc.
There is no oil pressure until the filter fills and so forth, so I
think I would prefer a warm engine for the initial start-up.
Regarding burnt fingers, I change oil with the engine hot but not
HOT! (since '67)
Allen Hess
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