Dirt Bike Season

It’s that time of year again. It’s time to get the dirt bikes out, service them, and hit the trails and dunes for the summer. At this point, you definitely have a choice to make on your oil and filter.  Choose wisely if you’re servicing them for the upcoming riding season or you’re breaking them in from storage. The question you can start with is, “Should I go with synthetic oil or the standard replacement conventional oil?”

AMSOIL Dirt Bike Synthetic Motor oil

If you’re like us, we’re hard on our equipment. We can easily admit that. We don’t allow our dirt bikes to gather dust sitting in the corner too long. We’d rather them gather mud and dirt from a long ride off-road making memories with friends. When it comes to keeping them running hard, we opt for the best synthetic oil we can find. That’s with AMSOIL, and they have started producing a Dirt Bike specific oil in three different weights to match our individual bikes.

Pick the Right Dirt Bike Oil

If you’re unfamiliar with which oil you need, you can definitely review your owner or motorcycle service manual to understand what weight of oil came from the manufacturer and what is recommended when you change the oil. There are options available from AMSOIL that may coincide with the weight from the manufacturer, but you may want to slightly vary the hot weight depending on your climate and how hard you ride your dirt bike.

Oil Ratings

The oil weights from AMSOIL are shown as 10W4010W50, and 10W60. If you’re unfamiliar with oil weight terminology, here’s how to break it down:

·      The ‘10’ at the beginning of each option refers to how well the oil will flow near freeze level for water (at 32 degrees Fahrenheit). It is the viscosity rating. This value is a good average level for oil. You most likely won’t be riding your dirt bike in subzero weather, so having a lower value isn’t a requirement. The same can be said for a higher value. If you’re not riding in subzero temperatures and really need a thicker oil for a specific reason, you shouldn’t look for a 15 or 20 weight. It will more likely cause your engine more trouble to run well at start up.

·      The ‘W’ stands for Winter. It is related to the first number signifying that the viscosity rating has a low temperature and a high temperature rating instead of staying consistent across the temperature range. If the viscosity rating didn’t change, you would not see a ‘W’ in the weight. It would be something like an SAE20 (no W).

·      The last digits show the viscosity rating at operating temperature. Different manufacturers require a slightly different rating, so AMSOIL offers three different levels. Be sure to check what your brand manufacturer recommends for your specific dirt bike. If you plan to run your dirt bike very hard, you may want to consider increasing the viscosity rating to add a little extra insurance for increased temperatures inside the engine. If your owner’s manual calls for a 40 weight oil, you can change that to a 50 weight to account for higher engine temperatures and keep the engine safe with more oil viscosity.

Dirt Bike Oil is Not the Same as Motorcycle Oil

You may think that this is the same oil as other motorcycle oils. While it does start with a similar basic lubrication additives as other AMSOIL products, it does offer something a little different that will make your off-road experience better. The Dirt Bike Oil is specifically formulated for friction durability that will allow your clutch to have a continuous feeling hill after hill. Off-road riding typically uses more on and off clutch action than a ride on the highway or city streets. That can cause fading in the clutch due to overheating the clutch plates and premature wear. The Dirt Bike Oil is formulated to reduce the heat and wear that a conventional oil would allow.

You can use the Dirt Bike Oil at the regular oil change intervals as you have previously done, and it should be in line with the manufacturer recommendation. The AMSOIL oil will offer better protection than a conventional oil if you go over the recommended service limit, which may just be once per year depending on your riding. AMSOIL does offer oil filters to compliment the Dirt Bike Oil to keep your dirt bike well protected, and both can be purchased together from BuyGreatOil.com. That should keep the synthetic oil change price lower by combining them together. Happy Riding!

To learn more visit BuyGreatOil.com

Dirt Bike Lookup for Motor Oil

Our Products

Motor Oils


Transmission Fluids

Filtration Products

Fuel Additives

Gear Lubes

Other Products

Compressor Oils