Maxum 10w60 Oil- Clutch Whine

[yuckly]

Oh? You ride solo all the time??

 

90 percent of the time.

[yuckly]

so how long( miles) are you running between oil changes? I have heard of this oil before and wanted to try it but the expense put me off. I am used to changing oil every 3000 miles

 

i will take it up to 6k probably...

[yuckly]

The 60 will definitely decrease fuel mileage, question is if it'll be enough to notice.

 

It's still 10w cold, so shouldn't be an issue on cold start.

 

My biggest concern would be the areas that get lubricated by splashing/spraying might not get enough lubrication. Cylinder walls in particular.

 

If I had to bet though, I'd place my money on the engine lasting 200K miles and he spends an extra $20 on fuel getting it there.

 

Oh, one more thing. I could see where the higher viscosity oil could cause some clutch drag. In this particular case though it sounds like the clutch has a problem that the high viscosity is masking. I'll repeat what I said in my earlier post: If the clutch is slipping with 10W40 there is a clutch problem.

 

How would you determine that there is a clutch problem? how would you diagnose that?

[RandyR]

How would you determine that there is a clutch problem? how would you diagnose that?

 

If the clutch slips excessively when engaging or the engine can rev when gunned (break loose the engaged clutch).

[MiCarl]

If the clutch slips excessively when engaging or the engine can rev when gunned (break loose the engaged clutch).

 

Exactly. The static friction between the friction plates and steel plates lock the clutch up. If there is not enough friction between them they will slip. If you feel them slipping then you have worn plates or a weak spring.

 

I got the impression from one of your posts that you felt slippage with the 10W40 that went away with the 10W60. The extra viscosity will tend to drag the driven plates (steels in a Venture, I believe) along and somewhat mask the slippage.

 

If there is a problem with the clutch it's best to fix it at your convenience rather than allowing the oil to mask it. It will come back, probably at a very inconvenient time.

 

It's a pretty simple job, and not very expensive if done before the steels plates get damaged.

[RandyR]

To add to MiCarl's post. There is evidence that the wrong additive's in an oil can also cause or contribute to slippage of a wet clutch.

[Guest Bluestreak]

If the temperature is what causes the oil to change viscosity, does the engine heat affect or cause the oil to change? I suppose I could google this myself but I figured someone here already knows this.

[Venturous Randy]

My concern with the 60 weight oil is when the bike is started up cold, it may be best to let the bike warm up and not rev the engine as too much oil pressure can cause the oil manifold to push out some allowing the orange oil ring to pop out on one side causing a big drop in oil pressure.

RandyA

[MikeWa]

If the temperature is what causes the oil to change viscosity, does the engine heat affect or cause the oil to change? I suppose I could google this myself but I figured someone here already knows this.

 

 

Yes

 

Mike

[yuckly]

Exactly. The static friction between the friction plates and steel plates lock the clutch up. If there is not enough friction between them they will slip. If you feel them slipping then you have worn plates or a weak spring.

 

I got the impression from one of your posts that you felt slippage with the 10W40 that went away with the 10W60. The extra viscosity will tend to drag the driven plates (steels in a Venture, I believe) along and somewhat mask the slippage.

 

If there is a problem with the clutch it's best to fix it at your convenience rather than allowing the oil to mask it. It will come back, probably at a very inconvenient time.

 

It's a pretty simple job, and not very expensive if done before the steels plates get damaged.

 

I will have this looked at. good info!

[MiCarl]

I will have this looked at. good info!

 

If you have it looked at it's quite likely they will tell you everything is in spec. The problem is that spring was marginal when new.

 

Order up one of Skydoc17's kits. Have them put that in along with replacing anything that is out of spec.