It will soon be winter here! That means that white crap on the ground.

I wanna do my oil change before it gets too darn cold! My ? is (I assume its o.k ) is it alright to use Yamalube 0w 40 full syn. since -20 celcius is normal for here , I know Yammie recommends a "cold weather kit" but to me it gets much colder than most areas so its not really much good, it will do in a pinch, as far as I can tell the 0w 40 protects better in the cold but I am not sure it will do in my wet clutch equipped A.T.V.

P.S. I run tracks in the late fall,winter and sping.