Best Oil for Dirt Bike: 10 Oil Comparison Chart to Help Demystify the Process

Motor oils are a kind of bloodline for any dirt bike to keep the engine running smoothly, given that dirt bike has to undergo extreme performance. But how do you know which high-quality oil to get high performance?

Well, what motor oils do is lubricate parts of an engine and keep it sludge-free. Sounds pretty simple, right?

YamaLube All Purpose 4 Four Stroke Oil


YamaLube All Purpose 4 Four Stroke Oil 10w-40 1 Gallon

  • Stable clutch performance
  • Genuine OEM Yamaha Product.
  • Ultra-clean additives
  • Highest certified rating for engine oils
Mobil 1 10W-40

Budget Friendly

Mobil 1 98JA11 10W-40 Racing 4T Motorcycle Oil for Sport Bikes - 1 Quart (Pack of 6)

  • Prevents metal oxidation and degradation
  • Helps to improve acceleration
  • Lubricates and protects your transmission components
Motul 800 2

Editors Pick

Motul 800 2T Factory Line 100% Synthetic Off Road 2-Stroke Engine Oil 4L (104039)

  • Electrochemical bonding to metal parts
  • Designed for wet clutches
  • Users report smoother shifting. Exceeds industry standard specifications.

However, there are indeed a lot of varieties, and choosing the right kind compatible with your dirt bike engine, is somewhat challenging. Not to mention, wrong oil can damage the engine for good.

So, our comprehensive guide on the best motorcycle oil will guide you through some outstanding products, enlightening you on what to look for in the process. Keep reading.

10 Best Oil for Dirt Bikes

Well, our diverse assortment of premium picks below will surely ensure that you can find something optimum performance and smooth ride what you need.

1. Motul 800 2T- Best Oil for 2 Stroke Dirt Bike

Motul 800 2T Factory Line 100% Synthetic Off Road 2-Stroke Engine Oil 4L (104039)

The Motul 800 2T Factory Line 2-Stroke Engine Oil is undeniably one of the best engine oil for 2 stroke engines. The oil’s quality and performance are well evident from the product’s numerous positive customer feedback.

The synthetic premix oil is formulated with an ester core technology that keeps the engine in top shape, with virtually no internal wear. It lubricates your engine and prevents hazardous deposits and clogs in the exhaust valve.

Apart from the high-performance engine of motocross, you can use this oil for any 2-stroke engine, be it the chainsaw, boat, or other marine crafts.

To protect viscosity loss, the oil’s viscosity again enables it to protect your engine at extreme temperatures. And being ester-based, it provides better protection to dirt bike riders when the engine gets hotter.

Users also love that the lubricant goes well with any fuel and offers a clean burn. You are sure to experience a minimal build-up in your combustion chamber with this oil.

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Final Words

However, for a gallon of 4 liters, Motul 2T is pretty expensive. Nevertheless, this counts as the only drawback, and you can hardly find any negative user reviews about the product.

2. Mobil 1 10W-40 4T- Best 4 Stroke Dirt Bike Oil

Mobil 1 98JA11 10W-40 Racing 4T Motorcycle Oil for Sport Bikes - 1 Quart (Pack of 6)

Whether you want your motocross engine to last longer or perform explicitly well in demanding off-road races, the Mobil 1 10W-40 4T Synthetic motorcycle Oil surely beats other synthetic lubricants with its unique and well-engineered formulation.

The multi-grade oil with a viscosity of 10W-40 offers standard engine operating conditions in cold and hot temperatures. This translates into a lubricant that doesn’t get too thick or runny despite extreme temperature changes.

The formulation also improves the engine’s performance and horsepower while riding aggressively off-road. It keeps the engine clean, free from depositions, and reduces internal engine frictions.

Less friction translates to less noise and heat emission, which in turn keeps your engine healthy and prolongs its life.

It comes in 32-ounce bottles with a side window scale so that you can measure the amount used or remained with ease.

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Final Words

The 4 stroke dirt bike motorcycle oil is versatile as well. You can use this for any modern vehicle engine, including cars, trucks, SUVs, motorcycles, and 4-stroke lawn equipment like chainsaws too. But always check with your ride’s manual before purchasing.

3. Maxima Castor 927 2 Synthetic Oil

Maxima (23964 Castor 927 2-Stroke Premix Racing Oil - 64 oz.

Coming from a renowned brand that has been in the business of manufacturing racing best dirt bike oils for more than 35 years, Maxima 23964 Castor two stroke Oil or automotive oil ensures quality performance in consistent high-stress conditions.

The lubricant uses a castor-based formulation with a combination of additives and synthetic oil, making it effective in keeping your engine lubricated for a long time.

It provides complete readymade oil change kits as a significant advantage. Moreover, reducing carbon particles or carbon deposits this oil exhaust emissions of bike’s engine.

It has the perfect blend of petroleum base stocks and, anti shear additives that are highly compatible with all types of bike’s engine to resist oil film breakdown.

So, even when the temperature reaches high enough for other lubricants to vaporize or form carbon, it keeps on protecting your engine gears.

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The quality formulation produces less carbon and gum as well. It’s also capacitated to provide robust protection against corrosion and rust.

In addition, the premix oil can be mixed with both leaded and unleaded fuels. However, you can’t use it if your bike features an oil-injection system.

Also, be cautious while mixing with certain fuels that have low specific gravity and always consult the engine’s manual beforehand.

Moreover, the formula is bio-degradable, so you won’t have to worry about polluting mother nature. The cleaner-burning oil smells exceptionally good. And it seems to be appealing to many users.

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Final Words

The product is a bit expensive, though. But one that ensures almost zero friction, zero smoke, and smells beautiful is sure worth the money.

4. YamaLube All Purpose 4 Four Stroke Oil 10w-40

YamaLube All Purpose 4 Four Stroke Oil 10w-40 1 Gallon

If you happen to have a Yamaha 4 cycle bike’s engine dirt bike, well, have the YamaLube All Purpose 4 Four Stroke Oil 10w-40 without a second thought.

And not just Yamaha, the lubricant is versatile and can be utilized for all sorts of bike’s engine, from street motorcycles and scooters to marine crafts.

A consistent clutch feel is mandatory to start your dirt bike effectively. Installation of the wrong clutch is the primary cause of clutch slippage that increases the risks of riding.

The product stands out for its potential to make clutch action seamless. And with the right wet clutch application, it significantly improves the shifting, enhancing your ride’s performance.

The bike oil also meets the JASO MA requirements, meaning it maintains the right friction between rotating plates and prevents clutch slippages.

And that’s just one of many advantages. The 10w-40 lubricant is also a reliable choice in all temperatures and weather conditions. You won’t have to worry about the viscosity becomes too high or low with changes in temperatures.

The mineral oil-based formula with additives keeps your engine cleaner with the least build-ups, boasts clutch performance, and enhances internal parts durability.

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Final Words

And with all these great qualities, we could hardly find any complaints about the product, except that it seemed pricy to some.

5. Honda Pro GN 4 Stroke Dirt Bike Oil – 10W40

Honda Pro Honda GN4 Motor Oil - 10W40 - 1 Quart/--

If you are unsure which lubricant to go with, how about going with an original product from Honda? And rest assured, you can’t go wrong with the Honda Pro GN4 Motor Oil – 10W40.

The brand introduced their GN4 motor oil about 45 years ago and kind of set the quality benchmark for every motorcycle oil or other oils.

The petroleum-based lubricant is designed to provide optimum bike performance with minimal friction and better clutch operation.

The 10W-40 again indicates that it keeps the engine functioning within high temperatures. So, be it cooler or hotter days, your engine should be in its top-notch shape with this oil.

And you can use this 4 stroke dirt bike oil for 4 cycle-engines of any motocross and ATVs alike unless the vehicle requires synthetic oils.

It benefits from advanced additive technology functionalities that guarantee durability, wet-clutch performance, and additional support to all types of weather conditions. The anti-scuff additives handle high temperatures and extreme loads to provide optimal motor performance.

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Final Words

Overall, the Honda GN4 is a high-quality lubricant that we recommend to everyone, from weekend off-road riders to professional racers. And the overwhelming good user response backs this up.

6. Castrol POWER 1 4T 10W-40- Best Gear Oil for 2 Stroke Dirt Bike

Castrol 06112 POWER 1 4T 10W-40 Synthetic Motorcycle Oil, 1 Quart Bottle, 6 Pack (15D1C9)

The Castrol POWER 1 4T 10W-40 is another quality and widely popular 4 stroke oil among both street and off-road racers.

And coming from a reliable brand like Castrol that has been in the automobile lubricating industry for so long, the product is reliable as well.

The brand uses a unique Trizone technology to formulate the fully synthetic lubricant that focuses on protecting the three most essential components, clutch, air-cooled engines, and gearbox.

And you get the wet clutch application certification from JASO MA-2, meaning your wet clutch is guaranteed to operate smoothly. Protecting wet clutches the optimal friction is supporting smooth shifting.

The additive combined formulation produces the least carbon build-up and emission as well. The brand confirms that by exceeding the requirements of API SL.

In addition to ensuring consistent performance in the most demanding situations, the oil maintains the required viscosity over a wider temperature range.

Such oil claims to aid in acceleration as well. Apart from that, you are sure to enjoy a smoother start and thrill of super fast riding.

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Final Words

We also love the versatility of the product. Whether a vehicle’s engine is oil-injected or carbureted, it can be used for both.

7. Valvoline SAE 10W-40- Best Transmission Oil for 2 Stroke Dirt Bike

Valvoline 4-Stroke Motorcycle SAE 10W-40 Motor Oil 1 QT, Case of 6

The Valvoline 4-Stroke dirt bike SAE 10W-40 Motor Oil is an excellent alternative for anyone looking for a cheap non-synthetic lubricant.

The mineral oil-based lubricant is committed to enhancing your bike engine performance. Its quality blend of additives ensures a cleaner operation as well.

Also, if you want to maximize the power transfer of your engine and shift the gears more smoothly, this product here stands as a quality option.

And as being engineered with an anti-wear technology, it prolongs your engine’s lifespan while improving transmission durability as well.

Temperature is a serious concern for engine oils. Lower temperatures tend to hinder the better oil flow, and higher temperatures make them too runny.

Such oil of these car engines has stable viscosity that further ensures smoother engine operation over a broad range of temperature changes.

So, even if the engine gets too hot, the oil films are resistant to breakdown.

The product comes in a case of 6 but is available in 1 quartz container as well.

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Final Words

This particular product makes sure your engine temperature is not disturbed regardless of the temperature outside. Thanks to the exclusive mineral oil and additive blend.

8. Quicksilver 4-Stroke Marine Engine Oil

Quicksilver 10W-30 Marine Engine Oil - 1 Gallon

This particular lubricant here is conventional 4-stroke oil, meaning you can use this for versatile application as long as the engine is a 4-cycle one.

The Quicksilver 4-Stroke dirt bike Marine Engine Oil is applicable for both outboard and inboard marine engines, generators, and other equipment engines.

It is formulated and engineered to prevent excessive wear of the engines by minimizing friction and making the engine cool to smooth ride.

The bike oil also provides robust protection against corrosion and rust, which makes the internal parts of the engine last longer, gives high performance. And your demanding dirt bike is sure to require minimal maintenance as well.

The 10W-30 viscosity again has outstanding retention properties. That translates into an oil usable in versatile weather and temperature conditions.

The product comes in a 1-gallon bottle and is also available in a smaller 1-quartz container. The clear markings on one side of the bottle are also convenient as you can keep an eye on how much you used or how much is remaining.

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Final Words

You can use this for your 4-stroke dirt bike motorcycle engine as well. However, make sure to check with the engine’s manual first.

9. Sea-Doo/Ski-Doo XPS for 2 and 4 Stroke Dirt Bike Oil

Sea-Doo/Ski-Doo XPS 2 Stroke Synthetic Oil Gallon 779127

If you are not happy about the engine performance of your favorite snowmobile, chances are you are not using the right oil. How about trying a lubricant formulated specifically for snowmobiles?

Although you can use other two-stroke dirt bike or 4-stroke dirt bike engine oil for watercraft, for the time being, using a dedicated product like Sea-Doo/Ski-Doo XPS 2 Stroke Synthetic Oil would benefit you in the long run.

And the XPS motor oil is a highly advanced composition designed to combat the wear and tear that a marine craft engine experiences on a daily basis. It is renowned for the smokeless burn as a mineral oil synthetic blend.

It has ultra-clean additives, a noise-free transmission that gives superior protection and maximum performance to the bike’s engine.

The formulation again makes sure your ride performs at its optimum. Marine crafts are also subjected to corrosive elements like salt, ice, and water. But this lubricant makes no mistake in providing complete protection against all these components.

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Final Words

This 2-stroke dirt bike oil works better with Rotax E-TEC snowmobile motors but is also suitable for most watercraft with semi-direct injection, direct injection, or carbureted engines.

10. Lucas Oil 10115 Semi-Synthetic Oil

Lucas Oil 10115 Semi-Synthetic 2-Cycle Oil - 1 Gallon Jug

Last but not least, to round off this list, we have a nearly smokeless and good quality oil. Yes, you read it correctly: the Lucas Oil 10115 Semi-Synthetic 2-Cycle car Oil stands out as a low smoke lubricant.

But how does Lucas oil do that? All thanks to its premium formulation that is composed of polybutene, mineral oil, low ash additives make a unique blend. So, the oil burns cleaner than most, ensuring minimal smoke.

Less smoke also translates into better health preservation of your engine, making it last longer than you expected. The low ash composition further prevents carbon deposits and clogging of engine components.

Also, it’s designed for engines with oil injection systems. So, you don’t go through the hassle of premixing it with fuel. Nevertheless, it permits mixing as well and comes as prediluted, meaning you can mix this with fuels at any temperature.

You can use this premium product for any 4-cycle engine, be it air-cooled or water-cooled. Following the bike’s manual will be the added advantage.

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Final Words

All these great features surely tell why the 2 or 4 stroke dirt bike oil is soo loved by users like side by side vehicles all around. So, whether you have a dirt bike, ATV, motorcycle, or any 4-stroke engined vehicle, we won’t hesitate to recommend it for all.

Frequently Asked Questions

1. Types of Dirt Bike Oil

It’s more than difficult to choose engine oil for your dirt bike if you don’t know all the types well. And looking at many different types, it’s easier to get confused.

So, we present a brief description of the 4 basic categories of engine oils below for your better understanding.


Mineral or otherwise known as regular engine oil is basically refined crude oil or petroleum. They are thicker, flows slowly, and are suitable for older motorcycle engines.

Older engines don’t undergo as much stress as newer ones, so the cheaper mineral lubricant makes a good fit. It requires frequent changing, though.



These dirt bikes oils are formulated from refined synthetic components and blended with a set of additives. The additive blend makes the lubricant longer-lasting, less viscous, cleaner-burning, and tolerant to high temperatures. This is why most modern and high-rev engines use this oil type.


As the same suggests, SYNTHETIC is one of the best two-stroke oil is explicitly used in 2 stroke engine oil to prolong engine life, which completes the combustion cycle in 2 piston strokes.

They are mixed with fuel and combusts with it. So, the formulation includes various additives to make it burn with less carbon deposition.


4 stroke dirt bike engine oil is less refined compared to 2 stroke ones and is not mixed with fuels. The additives postpone as well to get better performance.

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Amsoil D

2. Benefits of Dirt Bikes engine Oil

For maintaining the peak performance of your dirt bike, it needs oil regularly. Oiling keeps the moving parts in better shape, free from wear and tear, and thus enables the engines to perform efficiently.


Dirt bikes are subjected to aggressive rides and circumstances that require a proper lubricant to keep the engine functioning. So, dirt bike oils are formulated keeping all these factors in mind.


Additives are incorporated into the lubricant formulation to induce corrosion-resistant properties and make it withstand extreme weather conditions. These additives also maintain a cleaner and healthier engine.


As dirt bike oil reduces friction, it minimizes the wear and tear of engine parts. And this aids in prolonging the life of your dirt bike engine.


3. How Frequently Should I Change the Oil in My Bike?

There’s no exact rule as to how often you need to change the dirt bikes engine oil. Also, it depends on the type of oil you are using.

A general thumb rule says changing of mineral oils after every 2000 miles. And for semi-synthetic and synthetic oils, the mileage range could be anywhere from 6000 to 10,000 miles.

However, if you are racing off tracks, it’s advisable that you change the dirt bikes oil after 10-15 hours. For a precise idea, check the manufacturer’s manual.


4. How Much Oil Does Your Dirt Bike Need?

The amount of dirt bike oil is required which is depend on the bike you have. It’s also dependent on the type of oil you are using. A 2-stroke dirt bikes oil usually has a mixing ratio in the range of 1:60 to 1:20.

However, you can find precise information in the instruction manual.

5. Can You Use 2-stroke Engine Oil in a 4-Stroke engine?

The straightforward answer is you can’t, and you shouldn’t. The 2 engine types operate and lubricate differently. While a 2 stroke dirt bike oil is mixed with fuels at a recommended ratio, 4 stroke oils are injected directly.

So, using the wrong lubricant type hinders the combustion cycle and can do long-term damage.

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6. How Do I Dispose of Used Dirt Bike Oil?

Used dirt bike oil can harm the environment and pollute drinking water if thrown out directly into drains or ditches. For this reason, old automobile oils should never be thrown directly into the environment.

So, the safest way of disposal would be to transfer it into a used container or jar and bring it to the nearby gas station with a recycling facility.

7. Can I Learn Something from My Old Oil?

The drained oil from your dirt bike has a lot to say about the vehicle’s engine. You can certainly learn about the overall health and optimal performance of the motor just by looking at the used oil.

For instance, creamy oil indicates the presence of moisture that points toward the water pump seal leakage. Also, if you keep topping up the dirt bikes oil continually, you might have worn out piston rings.


8. Which Oil is Compatible with Racing Bikes?

Clearly, Motul has a top-notch quality that is compatible with racing bikes. You can define it as speedy motorcycles which provide maximum performance.

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9. What type of transmission fluid is used in dirt bikes?

Dirt bikes use transmission fluid to transmit power through the engine. It is not necessary for dirt bikes to use synthetic oil, but it does make life easier for riders and mechanics alike. Transmission fluid is similar to engine oil since some dirt bike and ATV models use the same oil. Just as engine oil should be replaced annually, transmission fluid should be examined regularly.

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Picking the Best Dirt Bike Oil for You

When it comes to dirt bike lubricants, there’s a lot of varieties. And the worst mistake is getting the wrong one that can potentially damage your engine.

So, to help you find the compatible one, we have reviewed a diverse range of products. And at the end of it, here comes the debate, which one’s the best dirt bikes oil for motocross?

The Motul 800 2-Stroke Engine Oil remains our top choice that ensures cleaner-burning, has robust protection properties, and is versatile.

However, if you have a 4 stroke engine, you can hardly find a better match than Mobil 1 10W-40.

Moreover, if you need versatile applications, the renowned products YamaLube and Honda Pro GN4 from Yamaha and Honda easily beat all other 10W-40 mineral lubricants.

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