heavy weight oil to keep cool? [Archive]

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bens250ex

07-23-2008, 10:50 AM

will running a heavy weight oil help lower the heat on a 440 with stage 2 cam and 450 carb? if so what is a good brand to run. any ideas?

REDRIDDER

07-23-2008, 10:56 AM

I've always run Honda GN4 20W-50 seems to cool it a little more but i have no actual facts to prove it.

07-23-2008, 11:10 AM

I noticed a nice change switching to 20w-50 from 10w-40. Now I run 15w-50 synthetic and it runs a little cooler than the 20w-50 because its synthetic.

chayes627

07-23-2008, 11:26 AM

i would go with a 20w-50 synthetic. i use amsoil. it is a little pricey but it is the best that you can get. their website has alot of info on it. check out the motorcycle white paper. http://www.amsoil.com/lit/g2156.pdf

REDRIDDER

07-23-2008, 11:38 AM

I would agree that a synthetic oil will transfer heat better.

leasureryan

07-23-2008, 02:24 PM

so....a 20w50 synthetic will cool even more, as opposed to just a 20w50 petroleum based oil.

REDRIDDER

07-23-2008, 03:02 PM

Originally posted by leasureryan
so....a 20w50 synthetic will cool even more, as opposed to just a 20w50 petroleum based oil. bingo! synthetic oil = less friction= less heat.

atvracr15

08-02-2008, 10:10 PM

i run valvoline 20w-50 motorcycle oil and it works great