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AMSOIL Dirt Bike Oil

Best 2 Stroke and 4 Stroke Dirt Bike Oil


The introduction of the world’s first synthetic motor oil to meet American Petroleum Institute service requirements in 1972 set all-new standards for motor oil quality. AMSOIL synthetic motor oil outperformed conventional petroleum motor oils on all counts. It was clear from the start that this innovative product would play a major role in engine performance and engine life.

AMSOIL Synthetic Dirt Bike Oil delivers consistent clutch feel and outstanding gear protection in four-stroke dirt bikes, providing riders the confidence they need to maximize their performance on the trail and at the track.



Consistent Clutch Feel


Clutch slippage or inconsistent clutch feel can prevent dirt bike riders from riding as fast or effectively as they like. To keep the engine within the power band, riders often modulate the clutch, increasing the opportunity for clutch slippage if low-quality lubricants are used.

AMSOIL Synthetic Dirt Bike Oil’s superior friction-durability properties help minimize clutch slippage, fade and chatter, giving riders consistent clutch feel during takeoffs or when maneuvering around obstacles on the trail. In an extreme simulated-start test, AMSOIL Synthetic Dirt Bike Oil continued to deliver consistent clutch feel following 32 simulated race starts, while a leading original equipment manufacturer (OEM)-branded oil demonstrated inconsistent clutch-lever action and poor clutch feel after 16 starts. The clutch plates lubricated with AMSOIL Synthetic Dirt Bike Oil remained clean and in good overall condition, while the plates using the OEM oil revealed discoloration and wear. AMSOIL Synthetic Dirt Bike Oil’s superior performance helps instill in riders the confidence that their bikes will perform consistently in all types of riding conditions.


Racing is Reseach™


AMSOIL corporately sponsored supercross and motocross racers identified consistent clutch feel as a key performance attribute. Consistent clutch feel is critical to motocross riders during starts to keep the bike from lurching forward prior to the gate dropping. Trail riders, meanwhile, need consistent clutch feel to confidently navigate obstacles without having to shift gears and lose momentum.


Shear Stability


High-revving dirt bikes can tear apart the molecular structure of motor oil, resulting in viscosity loss. Most four-stroke bikes use a shared sump that supplies oil for the motor, transmission and primary chaincase. Transmission gears can cause shear-induced viscosity loss if inferior oils are used. Oil that has lost viscosity can fail to develop a strong lubricating film on metal components, leading to wear. AMSOIL Synthetic Dirt Bike Oil’s durable synthetic base oils naturally resist viscosity loss due to mechanical shear.


Protects Gears Against Wear


By retaining its viscosity despite high heat and shearing forces, AMSOIL Synthetic Dirt Bike Oil guards against gear wear for maximum component life, helping riders get the most out of their bikes.

Replaces More Expensive Oils

AMSOIL Synthetic Dirt Bike Oil is a high-performance replacement for more expensive, imported OEM-branded oils.

How to Ensure the Best Lubrication for Your Dirt Bike

This will focus on two-stroke and four-stroke dirt bike lubrication as well as the differences in engine lubrication between the two.



Dirt Bikes Need Friction Protection


Dirt bikes are fun, there is no denying that. Even the words dirt bike make you immediately think of an adventure. Yet, just like with your car and other vehicles, it is important to keep your dirt bike in good conditions, and the first thing you need to take care of is the engine. The engine´s number one demand is friction protection. You need to always ensure that your dirt bike engine is well protected through proper lubrication. In order to do that you need to be well aware of the lubrication needs of your specific dirt bike.


Determine the Engine Type of Your Dirt Bike to Decide What Is the Best Lubricant for the Job


The first thing you should know is what kind of dirt bike you have in regards to the engine. There are two types of engines. There are two-stroke engines which are lighter and four-stroke engines which are bigger and a little heavy, but tend to be the preferred choice for beginners. Two-stroke and four-stroke dirt bike engines function differently and therefore have quite distinct lubrication requirements.


Dirt Bike Lubrication Care


Two-stroke engines are just that, combustion engines that function by firing once in every revolution of the crankshaft. The engine process is shorter and simpler, this is what gives them quite a potent power boost.  On the other hand, four-stroke engines fire once every two revolutions, they function through a longer process and more intricate design. This means they also have more pieces and all of that makes them bigger and a little bulkier. When it comes to care and maintenance the biggest difference lays in the lubrication.


How Two-Stroke Engines Work


To understand the lubrication needs of two-stroke engines we need to further explain the powering process of the engine. When the piston elevates inside the combustion chamber, a fuel mix rushes in. That fuel mix is compressed then ignited through the spark plug and an explosion takes place, forcing the piston to lower back down. That process continues as two strokes of the piston occur with each ignition. The fuel mix is the ideal blend of oil, fuel, and air, that react to the process and help power the engine.


The Downsides of a Two-Stroke Dirt Bike


The oil that is in the fuel mix is the same oil that lubricates the different components of the engine. Since the oil does not have its own lubrication system and it burns along with the fuel, both oil and fuel efficiency are reduced. You need to constantly add more oil and fuel efficiency is also compromised. Not to mention that two-stroke engines also tend to last less since the engine has to fight off friction a lot more. Due to all of this, it becomes imperative that you use a high-quality synthetic lubricant for better results and prolonged durability.


The Right Lubricant for Your Two-Stroke Dirt Bike


There are two types of two-stroke oil, one that is premixed with the fuel and another that is injector safe. Before selecting a motor oil for your dirt bike, read your owner´s manual and verify what type of oil is recommended. Then make sure you check what is the adequate oil to fuel ratio that your bike requires. AMSOIL carries a few synthetic oils created with the needs of your dirt bike in mind. DOMINATOR® Synthetic 2-Stroke Racing Oil is the perfect motor oil for your two-stroke engine. Contact Factory Direct Oil Inc today and purchase the best lubricant for your dirt bike.


Four-Stroke Dirt Bike Lubrication


Four stroke engines are bigger than two-stroke engines and have a more complicated system. They only get one ignition for every four-strokes from the engine. This gives them less of a power kick but more stability and makes them easier to control. They also have a separate lubrication system that is specifically in charge of keeping the engine parts well lubricated and adequately protected. For this reason, the four-stroke lubricants are much more similar to those of your regular car and they come in oil grades. AMSOIL´s 10W-40 Synthetic Dirt Bike Oil is highly recommended for Honda, Yamaha, Kawasaki, Suzuki, Husqvarna and other dirt bikes where 10W-40 motorcycle oil is used.


Synthetic Oil Change in Chesapeake, VA for Your Dirt Bike


No matter what type of lubricant you need for your dirt bike you will find it at Factory Direct Oil Inc. You can visit AMSOIL´s product page to view, review, and select the products you need for the protection and maintenance of your dirt bike.



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