[AG6]

I know this topic been beaten to death. I have decided on Motul 300v. Owners manual says use 15w50, workshop manual says 10w40.

My 848 has a wet clutch and from my research says 10w40 is good for wet and 15w50 is for dry clutches.

 

[Tuned]

10W40 is fine… it has nothing to do with the clutch, it has to do with temperatures. The 15W50 has greater protection for higher temperatures. However, it also has more additives which means it's friction coefficient is lower then 10W40.

 

[Tchase]

All shops in the seattle area say 15w50 for the 848 (wet clutch)

 

[AG6]

This is the information I am getting from research, either 10w40 or 15w50 but no definite pick between the two.

 

[Tuned]

Just research 15W50 and how horrible it is in the oil viscosity tests. It literally has HALF the anti-friction elements as the 10W oils.

 

[Tchase]

Just research 15W50 and how horrible it is in the oil viscosity tests. It literally has HALF the anti-friction elements as the 10W oils.

Please show the data on motul 15 50

 

[Tuned]

Read the part on high temperatures…

AMSOIL - Oil for motorcycles

 

[Hammerstime]

Ding Ding Ding! Round 200 coming at ya! :stir::crazyeyes:moon:

 

[AG6]

Ding Ding Ding! Round 200 coming at ya! :stir::crazyeyes:moon:

I just want to know what grade to change oil this weekend.

Neither of the rounds can help me decide

 

[Tchase]

Even Shazam has recommend 15-50 for wet clutch I guess Tye diagees on this point with him. I doubt it really matters but I got over 23k miles with 15-50 with no oil issues. Besides the viscosity break down that Tye is pointing out is bunk in my opinion from all I have read it all breaks down way before you hit even short interval oil changes.

You could always do a poll on the forum if you want the answer from us. Or you could call a few dealers and go with what they say.

 

[AG6]

Guys, I have decided on the Motul 300v 15w-50. My 848 and 1199 manual says 15w-50 so there must be something right with it.

 

[ducnial]

Motorex 4T 15w-50 for the garage queen and 4T 10w-60 for the track bike.
opcorn:

 

[blablac]

I would be more worried about the bearing to crankshaft clearance...

 

[Red Enough]

I've got 75,000km on my 15 year old 748. It's only ever been fed 15W50 semi-syn. Still like new.
Only replaced one rocker in all that time too.