my next oil change i am going to switch from yamahlube to amsoil. I just dont know what weight and what exact kind to get for my wolverine. AMO SAE 10W-40 Synthetic High Performance Motor Oil?? is this what i want? And how much better is this stuff than yamahlube? Thanks

 

most importantly, it has to be specifically designed for motorcycles and atvs. If it doesn't say atv, motorcycle, or wet clutch compatible on the bottle then double check that it's safe for your wet clutch first. And also, the viscocity rating you need will depend on your location's climate, but usually 20w50 in the warmer months and 10w40 in the colder months works well.

Just my opinion, but I don't think there's really any reason to use synthetic in your wolvy's engine. It'll run forever with regular atv oil like the yamalube you're using. This engine was designed in the 80's and the technology is so basic that it doesn't have a need for extra protection unless you ride in extreme conditions.

 

Use one of these. I run 0w40 in my bike and it works wonderful, clutch doesnt slip nearly as much as when i switched from 10w30.

https://www.amsoil.com/storefront/aff.aspx

https://www.amsoil.com/storefront/mcf.aspx

https://www.amsoil.com/storefront/mcv.aspx

 

I own some old bikes: 88 Honda TRX 300, 97 Honda TRX 300 4x4, 95 Wolverine 4x4, 96 Timberwolf. I traded a Recon for a Big Bear , and started using Rotella 5-40W synthetic in the new bike. I also put it in the other two Yamaha's the kids ride, and used castrol ATV in the Honda's. At a massive oil change last week, I was impressed with the Rotella. The Yamaha's had more hours on this change and the oil came out in far better shape. Far from a scientific analysis, I know. But I had no leaks, wet clutch, or temperature problems. I will run it in all the bikes for hunting and snow season as it has a wider viscosity range. I tried the Rotella on the advice of ATV mechanic, and reading on the web. So far so good

 

Yamalube is synthetic.

I ran Maxima performance oil in my Raptor for two years and didn't like the results. I switched back to Yamalube 20w40, and the oil is great. Good performance and longevity.

 

Thanks for the info

 

Where did you find this info??
I went to the Yamaha site and looked up Yamalube, and I cannot see where it is synthetic?

Yamalube

Yamalube2

Perhaps they make multiple types of Yamalube?? I always thought that Yamalube was a non-synthetic??

 

Looks like at best, it's semi-synthetic??

Differen't Yamalube blends

 

Yamalube is NOT synthetic, it is definetly semi-synthetic.

 

I've heard, but can't remember the reference, that an oil company developed a processing technique for regular oil that gave it synthetic oil properties. When they started advertising it, Mobil filed a lawsuit complaining that it wasn't a true synthetic as was "Mobil 1". Mobil lost, so they decided if they couldn't beat'em, they'd join'em. Thus, since it was cheaper to make, Mobil started using the same process and called it synthetic. That's how the story went. Now, I don't know whether the present "Mobil 1" synthetic is the old, truly synthetic, or is the new process with dynasaur oil. I do seel lots of "semi-synthetic" that may be what the new process really produces. 'Course, any of you who knows more about this story, please step in and help clear the matter.