At the risk of being flamed, I'm gonna ask a question about oil
Posted June 23, 2010 - 06:44 PM
Posted June 23, 2010 - 08:04 PM
Posted June 23, 2010 - 11:11 PM
Dont know about that,but a bunch of us use mobile 1 15-50 in our wr450s have had zero problems.
I've used 10-40, 20-50, 15-50 and even straight 30w oil. No problems.
Get some oil, change it often.
Posted June 24, 2010 - 04:08 AM
I ran the Mobil 1 15-50 for years too, without any problems. My local auto parts store no longer carried the non-friction modified, so I switched to an actual motorcycle oil that is made specifically for bikes.
And like mauricedorris said, change it often.
Posted June 24, 2010 - 08:52 PM
Posted June 25, 2010 - 03:47 PM
Just follow the manual for the temp range, which pretty much says use anything!
Posted September 04, 2010 - 07:04 PM
Posted September 04, 2010 - 09:20 PM
Posted September 05, 2010 - 01:27 PM
Thanks for the input/feedback. I'm still curious as to why the manual would state that US/Canadian models should use different weights of oil than other countries. That just seems odd. Does anyone know about this difference?
maybe there is different ways different countries rate their oil?
Posted September 05, 2010 - 06:13 PM
Posted September 11, 2010 - 01:37 PM
How often are you guys changing your oil? I do casual trail riding, always cool in Wisconsin:)
Same type weather here in northern Alberta. Oil changes seem to be a very personal thing, and everyone has an opinion. I change mine every 10-12 hours of riding. I'm not racing anymore, but spend a lot of time on tight, technical single track with lots of hilly terrain leading to a lot of clutch feathering. The oil in my WR450 is just starting to turn at that point. Works for me...you'll just have to experiment and adjust according to your riding style.
Posted September 11, 2010 - 02:01 PM
For 25+ years, Yamalube 4 petrolium-based oil was sold in 20/40 weight in the USA.
For about 15 years, it was also sold in 10/30 weight in the USA.
During these years, the Owner's and Service manuals recommended those weights.
For the past few years, a new oil producer has been making Yamalube oils for the USA, and the weights sold now are 10/40 and 20/50.
The Yamaha manuals have been changed for the US specifications to reflect that.
Posted September 14, 2010 - 07:46 PM
Change your oil every couple rides with a new filter and call it good. To my knowledge there is no mechanical difference between the us vs non us bikes that would require different oil
edit to add: The main reason you change oil isn't even viscosity breakdown, especially with highend synthetics but instead its things that don't belong there In your oil, having 1 quart of oil for a piston trans and clutch is going to be really hard on it and thats why you need to change it often and always use a new filter every time