Ok to run 15w40 in Ninja 500?

[Greg L]

All -


I got my Ninja ex500 last summer & immediately used Rotella 15w40 weight in it, without considering the weight. Seemed ok.

This summer, I am actually trying 10w40 (in Castrol) and it seems to be a smoother shift.


Was I wrong to use a heavy weight for summer last year? My owners manual says use 10w40.....

GL

 

[dwendt44]

40 weight oil is 40 weight oil regardless of what the smaller number in front is.
15W-40 is good down to below freezing, and Rtella works great in cycles, so no worries.

 

[FZ1]

I'm sure it did not hurt your bike. Don't worry about it. Stay safe.

 

[02zx9r]

10w40 or 15w40 is ok. no worries

 

[JRoDDz]

I know the Rotella is a non-energy conserving oil which is fine for motorcyle wet clutch operation. I don't know about the Castrol 10w40 though. If it says energy conserving on the SAE label it may cause your clutch to slip.

 

[PT1]

stick with the rotella

 

[TucsonDon]

Originally Posted By: PT1
stick with the rotella