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what oil should i yous in my yfz450
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Posted by: chases

what oil and coolent should i youse and what octane level shoud i use thanks chase

Posted by: tim colston

I use, notice the spelling, amsoil. I also run the best thing a gas pump will give me.

Posted by: YFZ#426

motorex

Posted by: atva_63

Yamalube 20w-40w
I have been using this oil since fall of 03 when the yfz was released. I had good positive feedback from my engine builders
(Baldwin, Rossier) Was told not to change anything
Much cheaper than amsoil. But if money is no issue Amsoil is one of the best

Posted by: 400exrider99

i run amsoil in mine. i want to run the best, but i kills me when i buy it.

Posted by: woodside83

I have used maxima for the last 4 years. I just got a quad from pat brown and he tould me to run yamalube oil. and for gas and mix 93 with 110. It helps the engine run cooler. put it will run just fine with 93 or as long as it is 91 and above. If you have motor work then ya mix 93 and 110. If it is stock then use 93.