(11-22-2013, 02:38 PM)Deanohh_imp Wrote: If it heats faster, it cools faster. Thermo conductivity works both ways.

(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.

(11-22-2013, 03:54 AM)CIP57_imp Wrote: Changed my oil yesterday with 2700 miles. Last oil change was at 550. The oil was so dirty with sediment with only 2200 miles. I used a clear glass to collect some oil to inspect as i do with other bikes. Also, 1.1 qts stays in the system via the oil cooler primarily. They should have a drain on the oil cooler with a fill. I think I'll be changing my oil more frequently than suggested on this bike.

(11-22-2013, 11:29 PM)The ferret_imp Wrote: Dang.... An argument over oil. Imagine that!

I trust Honda engineers, they designed the motor, it is their job to tell me how best to take care of it, and if they say use 10w30 dino oil ( and that 10w40 dino oil is ok too), ... THAT ... is good enough for me.

If they say drain the oil first, then the oil filter .... THAT .... is good enough for me too.

Will other methods and other lubricants also work? Undoubtedly. Necessary or better? Not necessarily. Could be..might not be. I am not an engineer...and I don't play one on the internet.
Since I am not an engineer on metallurgy or an expert on the properties of oil, I will rely on real engineers to tell me what they have determined is necessary to keep my engine running at it's peak. It's clearly spelled out in my owners manual and service manual.

If you choose to believe in superstitions, wive's tales, rumors, internet horror stories of a friend of a friend who had a buddy who, or a buddy who rides an X and is a fanatic about oil, that is certainly your prerogative.

You are certainly free to express your opinion, but please keep the discussion civil so that Guth and I don't receive complaints and are forced to step in and do something. That is all we ask.

(11-23-2013, 01:41 AM)Rboe_imp Wrote: A couple points here. If you change the filter with each oil change the "dirty" oil is not that big of a problem.

Mixing of oils is also not that big of an issue. Oils break down over time, especially in hot air cooled engines, to their base viscosity which is the same for the 10w30 and 10w40 and 10w50 etc. So mixing of oils is a red herring. Any oil in quantity is better than no oil and if you maintain regular maintenance intervals for the bike, sooner when it sees hard service, you can mix brands and weights to your hearts content will little ill effect. But you will get better results using recommended oil.

Naturally, if you stick with one weight and brand of oil it won't take many oil changes and you will have purged your system of any trace of that evil break in oil. I think the more important fact is that you are riding and taking care of your motorcycle. God help you if you don't adjust your chain properly though!

(11-22-2013, 03:41 PM)Deanohh_imp Wrote: Get my head right? Love ya man.

(11-23-2013, 01:46 AM)ingobohn_imp Wrote:

(11-23-2013, 01:41 AM)Rboe_imp Wrote: A couple points here. If you change the filter with each oil change the "dirty" oil is not that big of a problem.

Mixing of oils is also not that big of an issue. Oils break down over time, especially in hot air cooled engines, to their base viscosity which is the same for the 10w30 and 10w40 and 10w50 etc. So mixing of oils is a red herring. Any oil in quantity is better than no oil and if you maintain regular maintenance intervals for the bike, sooner when it sees hard service, you can mix brands and weights to your hearts content will little ill effect. But you will get better results using recommended oil.

Naturally, if you stick with one weight and brand of oil it won't take many oil changes and you will have purged your system of any trace of that evil break in oil. I think the more important fact is that you are riding and taking care of your motorcycle. God help you if you don't adjust your chain properly though!