Best Motorcycle Oil

Best Motorcycle Oil

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Motorcycle oil products are lubricants designed to aid in motorcycle maintenance.

These products perform different functions, ranging from protection to enhancing motorcycle performance.

How does motorcycle oil enhance the performance of your bike?

The application of the oil helps to keep your engine lubricated. And by keeping your engine lubricated, prevents a metal-to-a-metal contact that can wear out the engine parts.

In this guide, we’ll dish out some of the best motorcycle oil products. And the good news is that these products can be used irrespective of your bike type.

Best Overall: Honda Pro GN4 Motor Oil

Short summary

The Honda Pro GN4 Motor Oil is our best pick. If you want the best, then this Motorcycle oil should be on your radar.

The product has made a name for itself after being in the market for 4 decades now. This is one more reason why many people trust this oil.

Go with this option if you want something long-lasting. It has a great viscosity level and meets other important requirements, giving it the top spot on our best motorcycle engine oil list.

When it comes to motor oil, Honda Pro GN4 is a highly regarded name in the motorcycle industry. This product has been in the market for over 40 years and is used by racers and motorcycle enthusiasts across the world.

It is made from high-quality base stocks and features additive packages specifically designed for motorcycle and ATV engines. Constant testing and development have allowed Honda to develop this motor oil that offers superior viscosity, stability, and shear resistance. It also promotes cleaner combustion.

This premium product meets the needs of modern engine technology as well as all JASO MA2 and JASO MA1 specifications. Many customers find their engines to be quieter and more durable when they use this oil than any typical mineral oil. The oil is compatible with multiple types of vehicles and comes highly recommended by Honda.

It is a mineral-based oil product with superior thermal stability. It is recommended for use in both new and used motorcycles and ATVs. The Honda Pro GN4 Motor Oil is a petroleum-based motor oil product and is suitable for both racing and light-duty motorcycles.

The Pro Honda GN4 is formulated for racing Honda bikes and has a synthetic blend to improve engine performance. However, it is not intended for use in production motorcycles. As one of the best motorcycle engine oil products, the Pro GN4 comes in 10W-30, with its proprietary additive package specially designed for motorcycles and ATVs.

The motor oil also protects exhaust filters and catalysts. It is ideal for all-purpose vehicles. The GN4 Motorcycle oil is dubbed one of the best motorcycle oil products because it is the most popular for both road and off-road vehicles.


  • Long-lasting
  • Suitable for all types of motorcycles and ATVs
  • High engine optimization


  • Not recommended for use in production motorcycles

Best Motorcycle Oil


Honda Pro GN4 Motor Oil

Runner Up: Castrol Power 1 Synthetic Motor Oil

Short summary

Castrol has always dished out products that are problem-solving. This synthetic product comes with Trizone technology. With a small budget, you can purchase this motor oil. It is the ideal solution to your wet clutch and lives up to the brand’s years of producing helpful motorcycle products.

With all these features, the Castro Power 1 product is arguably the best motorcycle oil for wet clutch. If you’re in the market for the best synthetic motorcycle oil, Castrol has a fantastic product for you: the Power1.

Featuring Trizone technology, this new motor oil complies with API and JASO standards, meaning it is suited for most four-stroke engines. In addition to being the best engine oil for 4 stroke motorcycle, it comes in a small quantity per liter of fuel, so it is easy to fit it into your budget.

This synthetic oil is specially formulated to provide longer protection to your engine. It is a well-known fully synthetic motor oil product specifically formulated for motorcycles. Its unique formula helps keep your bike running in top form. The viscosity of Castrol Power1 is excellent, making it a superior choice for many motorcycle owners. The viscosity is not affected by extreme temperatures. In fact, it can decrease viscosity when put under stress and then return to its original state afterward.

This product is approved for all four-stroke motorcycles and is specially formulated for high-performance engines. In particular, it is ideal for newer bikes with turbocharged engines and other advanced technologies. Typically, you’ll only need to change your oil once every seven hundred and fifty miles. But if you’re into motorcycles, this oil is designed to increase power and enhance clutch response. As a result, it is recommended to change the oil at 7,000-8,000 miles to maintain maximum performance.

Castrol Power1 has a higher viscosity than most other synthetic motor oil types.  It is usually a good idea to shop at a reputable retailer so you don’t end up with a leaking bottle. But the brand is not without flaws. The packaging can be flimsy and may leak in some cases. Thankfully, the company offers a warranty that covers any defects in the product.

While Castrol has excellent reviews for its motor oil, it is important to make sure you’re using it properly.The price is very reasonable, and the benefits outweigh any negatives. If you’re considering purchasing new synthetic motor oil, Castrol is a great choice and the best motorcycle oil for wet clutch.


  • Very affordable
  • Excellent viscosity
  • Synthetic oil
  • Comes with a warranty


  • Leakage and flimsy packaging in some cases

Best Motorcycle Oil


Honda Pro GN4 Motor Oil

Alternative: Suzuki ECSTAR R9000 Full Synthetic Motorcycle Engine Oil

Short summary

This Motorcycle oil provides users with an entirely different experience.

If you experience a decrease in your Suzuki Motorcycle’s performance, the ECSTAR R9000 might be the best oil for motorcycle from that brand.

With this motorcycle oil, you can start your engine on a whim. It is an excellent alternative to consider when it comes to the best motorcycle oil 10w 40.

The Suzuki ECSTAR R9000 Full Synthetic Motorcycle Engine Oil is a revolutionary product developed to optimize the performance of Suzuki motorcycle engines. The lubricant contains the highest quality synthetic base oil additives to provide improved friction characteristics and thermal stability.

Its advanced formulation has passed rigorous testing and has been proven to enhance performance by up to 2.8%. Its superior protection from sludge and deposits makes it the ideal choice for all types of Suzuki motorcycles. The ECSTAR motorcycle oil contains synthetic components that enhance performance and reduce wear and tear on the motorcycle engine.

Its high-temperature stability and anti-wear properties promote easy engine starting. Its excellent friction cooling characteristics also help reduce sludge and rust formation. It also improves fuel economy by up to 3.5% and helps reduce harmful pollutants in the environment.

The ECSTAR R9000 motorcycle oil has been manufactured by Suzuki’s in-house engineers. It is available from authorized Suzuki motorcycle dealerships. Its unique design and features make it the perfect choice for riders looking for the best engine oil for motorcycle. Developed in collaboration with the world’s top manufacturers, the ECSTAR motorcycle oil is arguably the most innovative, high-performance motorcycle oil on the market.

The motorcycle oil is designed by engineers to maximize performance and prevent engine wear and improve fuel economy. Unlike other oil types, it is compatible with Suzuki models from all years. The ECSTAR R9000 10W40 oil can be found at authorized Suzuki two-wheeler dealerships. The ECSTAR R9000 Motorcycle Oil has the best filtration, which enables riders to save money on fuel. And it contains no harmful ingredients, which means it is safer to use.


  • Reduces environmental pollution
  • A filtration system that helps you save money on fuel
  • Compatible with all Suzuki models
  • Great thermal ability


  • Reduced performance when used on different bike models

Best Motorcycle Oil


Honda Pro GN4 Motor Oil

Alternative: YamaLube All Purpose 4 Stroke motorcycle Oil

Short summary

YamaLube is one of the best motorcycle oil brands. It has everything needed to enhance the performance of your bike.

Its viscosity level is nothing short of excellent. It is recommended for use in 4-stroke motorcycles. It is offered at a slightly higher price than some of the options on this list.

You would certainly be awed by how great this motorcycle oil is, and it definitely deserves a spot on our list of the best engine oil for motorcycle. The YamaLube All Purpose 4 Stroke motorcycle oil is an excellent choice for all types of bikes, scooters, and ATVs.

Regular motorcycle engine oil products tend to lose their viscosity after a few uses, which impedes the performance of the bike. This mineral-based motorcycle oil maintains its viscosity and has ultra-clean additives for better friction properties.

The product meets the standards of JASO MA, although it might not be as affordable as other products. It features viscosity grades, which is important in determining how the oil properly lubricates the engine. The first number in the viscosity grade stands for the low-temperature rating, while the second number stands for the high-temperature rating.

This motorcycle oil is suitable for most four-stroke engines, making it one of the best engine oil for 4 stroke motorcycle, and it delivers superior wet-clutch performance. It is a fine blend of petroleum base stocks and has additives designed to keep the engine cool even in high temperatures. The product also offers smooth clutch engagement.

The engine oil is an excellent choice for riders who want to protect their motorcycle engine from wear and tear. The oil is designed with anti-scuff additives that provide extra support during extreme conditions. It also helps reduce the temperature of the engine and makes it easy to start the bike in cold temperatures.

Unlike other types of motorcycle oil, this product has a long shelf life. It has been tested for years to meet the needs of racers, and the brand has received multiple awards for this product.

YamaLube formulated the All Purpose 4 Stroke Motorcycle Oil to contain a blend of non-conventional and high-performance fluids. This makes it an excellent choice for all motorbikes ranging from 125 to 180 cc. Although it is a high-quality product, the price tag is slightly on the high side compared to other similar products. Nonetheless, it has many advantages.


  • Contains high-performance and non-conventional fluids
  • Very affordable
  • Long shelf life
  • Suitable for wet clutch


  • Reduced performance if used on motorcycles outside of the 125-180 cc range

Best Motorcycle Oil


Honda Pro GN4 Motor Oil

Alternative: Mobil 1 V-Twin Synthetic Motorcycle Motor Oil

Short summary

This is the last but definitely not the one with the least performance. Mobil 1 V-Twin oil could be compared with the YamaLube All Purpose 4 Stroke oil if not for the variation in price.

When applying this oil, it is best to use the manufacturer’s guide. It is easy to get hold of, and it extends drain intervals for your motorcycle. The Mobil 1 V-Twin Synthetic Motorcycle Motor Oil has got recommendations from two renowned companies. What else do you want in a motorcycle oil product?

When it comes to buying the best engine oil for motorcycle, Mobil 1 is one of the best brands on the market. It is recommended for all types of bikes and is made to provide high performance. Remember to use the recommended amount of oil for your bike in accordance with the manufacturer’s guide. This motorcycle oil can be easily purchased by simply placing your order online.

Mobil 1 V-Twin Synthetic Motorcycle Motor Oil can also extend drain intervals, which is important for performance bikes. It is also durable, with added additives for maximum performance and enhanced cleaning agents for the best cleaning. Because it is made from a high-quality synthetic blend, it is ideal for motorcycles with separate engines or wet clutch.

It also features a resealable cap, so you won’t have to worry about your bike breaking down if you’re riding it for a long time. The Mobil 1 V-Twin 20W-50 has been designed specifically for four-cycle motorcycle engines. Its advanced synthetic technology protects the motorcycle engine against extreme temperatures and offers excellent performance.

This oil is recommended by ExxonMobil for Harley-Davidson and other brands of motorcycle engines. It is also recommended by the American Honda Motor Company for lubrication. These are just a few reasons why Mobil 1 V-Twin is the best motorcycle oil to use.


  • Recommended for use by ExxonMobil and the American Honda Motor Company.
  • High performance when used in 4 stroke motorcycles
  • Comes with a resealable cap
  • Ideal for wet clutch
  • Produced from high quality synthetic blend


  • Reduced performance when used on other stroke motorcycles
  • Slightly expensive

Honda Pro GN4 Motor Oil

  • Viscosity: 10w-40
  • Volume: 32 fluid ounces
  • Package Type: Bottle

Best Motorcycle Oil


Honda Pro GN4 Motor Oil

Best Motorcycle Oil FAQ

Do Motorcycles Need Special Oil?

pouring oil in motorcycle

Here’s a short answer: yes!

There are many different types of motorcycle oil. The type of oil you choose depends on your motorcycle and riding style. The cheapest type is mineral oil.

Motorbike manufacturers recommend specific API codes for each oil type.

You can also use synthetic blends. You can buy a multi-weight formula to accommodate varying ambient temperatures.

It is important to follow the manufacturer’s instructions. So, in the end, it is still up to the requirements of your motorcycle.

Can You Use Regular Oil in a Motorcycle?

Regular motorcycle oil isn’t as harmful to the engine as regular motor oil is to car engines. Its viscosity remains stable, keeping the internal components free of debris. Its viscosity is also what gives it the smooth experience you desire.

It also keeps the engine clean, prolonging its life.

However, consistently using regular oil on your bike can damage your engine. The viscosity of regular oil decreases after several uses.

You can use a good auto-oil product. But you should make sure it is not marked as energy-conserving or energy-saving. Check the manufacturer’s manual before you use regular oil.

Most manufacturers recommend using MA-grade oil, which is a quality standard recognized by the American Petroleum Institute (API).

Depending on your engine’s specifications, you can use the wrong oil. A high-grade oil product is ideal for your motorcycle engine, but the best choice for your bike should have a viscosity between 10W-40 and 15W80.

This combination ensures maximum protection for the moving parts of the engine. Regardless of the motor type, you should not be using regular oil if you want your motorcycle engine to last.

What Does 10w40 mean and What is Viscosity?

The 10W40 motor oil is more viscous than the regular 10W-30. It is recommended for hotter climates and is less expensive, although it is also less effective and less efficient.

The right oil for your vehicle will depend on its viscosity, so you should consult the user’s manual to make sure you use the right oil.

Viscosity in layman’s terms describes the resistance of a particular thing (either a liquid or a gas) to changes. You should follow the recommended viscosity limits for your bike.

You can find motorcycle oil products with different viscosity levels by reading the labels carefully.

For example, motorcycle oil products are designated by the letter “A.” The letter “A” represents the lowest temperature range, while “W” indicates the highest.

By understanding the differences in viscosity, you can compare and choose the right motor oil. A good oil product should protect your engine parts from wear and provide reliable lubrication.

Motorcycle oil should be 10W40. It is slightly thicker than standard motor oil products but still provides adequate lubrication for all the moving parts in your bike’s engine.

It is also best for older models and motorcycles that don’t need filters.

The thickness of the oil is a key factor in maintaining the efficiency of your motorcycle.

Difference Between 4 Stroke and 2 Stroke Oils?

The difference between 4-stroke and 2-stroke oil products is important to keep in mind when choosing the right oil for your motorcycle.

The two types of oil products have different characteristics, but both are essential. The type of oil you choose will depend on the purpose of your motorcycle.

The type of oil you choose should be appropriate for the conditions you drive in, such as cold and warm temperatures.

The lower the viscosity, the higher the flow, and the higher the viscosity, the smoother the performance.

If you have a 2-stroke bike, you can use 10W-30 oil. But you should note that this type of oil is not suitable for a 4-stroke bike. The wrong oil could lead to ash deposits and plug whiskering.

Two-stroke motorcycle oil is thinner than four-stroke motorcycle oil. Moreover, four-stroke oil is not as refined as two-stroke. They require additives for better performance.

The right type of oil will prevent excess friction, minimize heat, and protect the engine. You can expect a long lifespan for your motorcycle engine with proper maintenance.


Finding the best motorcycle oil of your choice could seem easy to you at first, not until it becomes something dire.

But that’s why you have this guide. It is to ease the stress of having to find the best motorcycle engine oil without too many hassles.

If you are completely at sea with the motorcycle oil to go for, check out our best pick. Or go for something in this guide that matches your motorcycle manual recommends.

Reference Links


Jeffrey Bryce is an experienced motorcycle rider with years of experience caring for motorcycles. His natural fondness for motorcycles have made him come up with, which is dedicated to answering and teaching you how to care for your bike with the care it requires. LetsGoForARide is the one of his important lifework in reaching out to communities of motorcycle enthusiasts on how to take care of their bike and choosing the correct spare part.