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Subject:technical oil viscosity question
From:Davidson
Date:Sat, 13 Nov 1999 18:42:34 -0800

Okay, I'm confused about something....
My understanding is that when using multi viscosity oil like 20 - 50 that
when the oil heats up the oil actually gets thicker (50) and when the oil is
cooler like on start up the oil is thinner (20). Is that correct? If so, why
does oil seem to be thinker when it is colder... like that's why I warm the
engine up a little before doing an oil change... so it will drain out
faster.
Okay so where is my thinking wrong?
Thanks,
Bill
90 Westy Syncro