10w-50 is recommended for dirt bikes. I say yes to this when we’re blasting around on dirt. When it comes to smashing your way through waist deep powder, this oil is too thick, and not intended for what you are asking it to do.
Summer Oil in Winter = Cold Molasses!
Your bike is going to work hard enough packing your carcass all over the mountain. Forcing it to choke on gummed up, tar-like summer weight oil is just plain rude!!
You wouldn’t go Snowbiking in a swimsuit. Well, just as swimsuits are for summer fun, so is summer weight oil. Get the right tool for the job.
Winter Weight Oil, you say? I’m listening…
0w-40 or 5w-30 Take your pick. Before you do, here’s some Blue Collar Science for ya!
0w/ 5w Mumbo Jumbo
The first number (0 or 5 in this case) talks about how the oil is going to act when it’s cold. It holds the same characteristics of a lightweight oil , which allows the engine to pick it up and use it much sooner than say a 10 weight oil we use in the summer. The sooner the engine can use the oil, the less dry grinding of engine parts, the more happy riding we can do.
30 or 40 Weight? Who Fricken Knows!!?
The 30 or 40 speaks to the viscosity, or thickness of the oil when it’s hot. The higher the number, the thicker the oil and better the coverage we will have on our internal parts when smashing around with the throttle pinned.
Both of the Products shown to the right are pretty awesome, in our humble opinion. Which one do you choose? Well, it’s kind of up to you. Both will do the trick just fine.
Treat your motor right, and it will keep you happy for a long time. Heat and dirt are the 2 main culprits when it comes to a blown bike motor. We see neither in the winter, so your engine should last a long time!
Don’t overwork it by dumping in Grandma’s Molasses, help it get to working temp by following some simple guidelines outlined in our Temperature Management article and enjoy a long, happy, trouble free life together.
~ Contributing Author Andrew Thompson, Vernon Snow MX