07-20-2014, 03:56 PM
(11-22-2013, 02:34 PM)_imp Wrote:(11-22-2013, 02:10 PM)Deanohh_imp Wrote: All the oil passes through the oil cooler all the time. Oil doesn't drain out of the oil cooler when drained from the engine and its not supposed to. If you had to wait after the oil change for the cooler to fill up with oil the engine would be starved for oil while the cooler was being refilled by the oil pump.
The oil cooler is a critical component in the cooling of the engine. Oil has to circulate freely to carry heat out of the engine and into the oil cooler and bring the cooled oil back to the engine. If you put a bunch of thick slow moving oil in the system then it is not going to circulate as good and not cool as good as a thinner oil. You fill it with a heavy 10w40 or 20w50 and it will be worse for its ability to help the engine run cooler. I'll stick with the 10w30.
Being thinner and slipperier ( if it is), a synthetic 10w30 would be even better for helping to cool the engine because of its better circulation to dissipate heat, and still have excellent lubrication.
If you mixed 5 qts of 10w40 with half a quart of 10w30, would you end up with 5.5 quarts of 10w38?
No argument that when an engine goes w/o oil,even if only
a few seconds,it can cause damage.So a complely empty oil cooler would deprive the engine whatever amount it takes to run.
meaning about a quart low.That is why maybe Honda should have
put a temp gauge for the oil cooler to show how it is cooling.
A thermostat at least.Which I'm sure is somewhere within the unit.
The entire reason Harley run on 20w-50 { thicker oil } is in
helping to cool the engine when it gets hot,like in the summer months.
I think you've got it ass backwards.10w-30 would be better for
cooler months and easier starting.because in cooler months a
bike doesn't require cooling as much as in the dead of summer.
I don't think lighter weight fluid { 10w-30 } flowing easier
translates into the oil cooler being more efficient for cooling.
Easier flowing oil would also be more suspectible to degradation
and evaporation due to heat transfer.Lighter weight oil would
heat faster ... got it.
No argument that when an engine goes w/o oil,even if only
a few seconds,it can cause damage.So a complely empty oil cooler would deprive the engine whatever amount it takes to run.
meaning about a quart low.That is why maybe Honda should have
put a temp gauge for the oil cooler to show how it is cooling.
A thermostat at least.Which I'm sure is somewhere within the unit.
The entire reason Harley run on 20w-50 { thicker oil } is in
helping to cool the engine when it gets hot,like in the summer months.
I think you've got it ass backwards.10w-30 would be better for
cooler months and easier starting.because in cooler months a
bike doesn't require cooling as much as in the dead of summer.
I don't think lighter weight fluid { 10w-30 } flowing easier
translates into the oil cooler being more efficient for cooling.
Easier flowing oil would also be more suspectible to degradation
and evaporation due to heat transfer.Lighter weight oil would
heat faster ... got it.
Oil is like pancake syrup, did you ever put your syrup in the microwave? It flows like water when hot, that ain't good for motors the reason they use 20-50 in Harleys is when there hot the oil won't break down and get as watery. DO this, in summer run 10-40 and in winter run 10-30 viola!