Best Motorcycle Oils 2021

motorcycle oils

How to find the best motorcycle oils

The engine oil in your motorcycle is the lifeblood of your engine. Not only is it a lubricant, but it also serves to cool your engine and protect it from wear and tear. Because of this, it is incredibly important to use the highest quality oil that your bike can handle, and to change it regularly.

The best place to start is to find out what kind of oil your motorcycle needs. Different motorcycles require different kinds of oil due to the kind of engine they have, as well as the climate they are driven in. Some motorcycles also require synthetic oil, which is more expensive than regular oil.

The main difference in the best oils for motorcycles is in the viscosity or thickness of the oil. A thicker or heavier oil is required for colder temperatures where the oil will be subjected to greater loadings and will take longer to flow. It is also more suitable for high workload engines that are operated at lower speeds and revs for extended periods of time. One of the most common oils used in motorcycle engines is the SAE 10W-40. This oil is a grade lubricating oil and is the most popular grade of oil used for motorcycle engines. It is a single grade oil and does not change in viscosity with temperature.

Motorcycle oils are engineered to withstand the unique challenges presented by today’s high performance machines. In addition to keeping your engine clean, motorcycle oils help extend its life, reduce engine wear and improve overall performance. New oil additives provide even better protection. Motorcycle oils are available in a range of viscosities to meet the needs of a variety of riding conditions. Also, synthetic oils provide the ultimate in performance and protection.

Motorcycle oils should be used as a medium to prevent the engine from risking the damages done by the friction between the engine’s moving parts.  There are several types of motorcycle oils, with the most popular being synthetic oils. Synthetic oils have a longer life expectancy as compared to normal oils.  They are also known to lubricate the engine parts better as compared to the normal oils.

Motorcycle engine oil is something that we don’t tend to give much thought to, but it is one of the most important factors to consider when it comes to the long-term health of your engine. The problem with oil is that it often gets neglected. We only tend to start thinking about it when it gets dirty, and we have to take it in to be changed. However, oil is a vital part of your motorbike’s engine, and the new oil you put in your motorbike will in turn be vital to the performance of your motorcycle.

Benefits of Motorcycle Oil

There are hundreds of claims out there about engine oil and why it’s crucial to your ride. But they are all generalities. There is no oil that can guarantee you will never have any problems, but you can mitigate the probability with the right oil. The oil protects your engine against all kinds of wear and tear as well as improves its overall performance. It keeps your engine clean and also cools the engine to prevent it from overheating.

benefits of motorcycle oil

  • Prolong Engine life
  • Better performance and more efficiency
  • Cleans your engine
  • Cools your engine
  • Lubricates your engine

The benefits of using oil include a reduction in engine wear and a reduction in friction which helps increase fuel economy.  Oil also helps prevent piston and cylinder scuffing. it has been shown that oil life can be extended by using a higher quality oil that has fewer deposits and more lubricity, which reduces the wear in the engine and allows the oil to last longer. Engine oil is the lifeblood of an engine.

It is the lubricant that keeps all of the engine’s parts from grinding against one another. Without adequate amounts of engine oil, the engine will quickly wear down, and chances are you will have to replace it sooner than you may have wanted. If you are looking to upgrade your motorcycle engine oil, the most important things you need to consider are the type of oil you will be using and the amount. One of the most important properties of oil is its viscosity. The viscosity of oil, by the way, determines the engine life.

Different types of motorcycle engine oils – Buyer’s Guide

types of motorcycle oils

The best motorcycle engine oils are those that have a high viscosity index. This is a measure of how the oil will behave as the temperature drops. If a motorcycle oil has a high viscosity index it will flow well as the temperature falls, ensuring that the engine is lubricated well and that the risk of wear is reduced. The most common way to treat a motorcycle engine for longevity is with the use of a good-quality motorcycle oil. Motorcycle oils tend to be a little thicker than oils designed for cars, which helps during the cold-start process, and also helps protect the engine from wear from the frequent startup and shutdown cycles.

Motorcycle oils are typically made up of a combination of mineral (fossil) and synthetic base oils. They are used in the same way as automotive and lubricating oils, but are tailored to the specific needs of motorcycles. However, the quality and performance of motorcycle oil does vary, and which oil is best for your bike will depend on the age and manufacturer of the bike, as well as the conditions you ride in.

  • Mineral oil

Mineral oil is the most common type of oil used in modern engines. It is widely available and inexpensive, making it a good choice for budget-minded consumers. Fully synthetic oil, in contrast, is made from the purest of oil bases and is formulated to suppress engine wear. Semi-synthetic is a blend of mineral and synthetic oil. Synthetic oil is more common as it is more environmentally friendly.

  • Semi-Synthetic Oil

Semi synthetic oil is not a byproduct of the refining process, but a specially manufactured oil containing a range of synthetic lubricants blended with conventional mineral oil. Semi synthetic oil is engineered to deliver the benefits of synthetic lubricants at a lower price. Semi synthetic oils are suitable for most motorcycles and are particularly useful for riders looking for the benefits of synthetic oil without the high cost. The main advantage of semi synthetic oil is that it is suitable for use in older motorcycles with lower oil pressure and in motorcycles which have been fitted with unleaded fuel. Semi synthetic oil provides improved resistance to wear and corrosion as well as being more resistant to foaming.

  • Fully-Synthetic Oil

The development of fully synthetic oils has seen many performance benefits for engines. Fully synthetic oils offer superior lubrication and increased protection from engine wear.

  • Multi-grade oil

When you’re looking for a high-quality engine oil, multi grade engine oils are the way to go. These are designed to be compatible with different classes of motor oil, so they can be used in a wide variety of different engines, and even work as multi-purpose oils as well. These can be an excellent choice for your motorcycle if you’re looking to get the most out of your bike, and don’t want to have to worry about swapping out your oil every time you change your engine. Multi grade oils  are oils that have been specially formulated for use in both petrol and diesel engines. These oils are widely used in modern motor vehicles that use both fuels for either or both power and fuel economy reasons. These types of oils are often referred to as “multi-fuel” or “universal” oils.

  • Single grade oil

Single grade oil is a type of engine oil that is designed to be used in a single grade of engines. While this type of oil is preferred for racing engines, it can also be used for regular road use. The reason why this type of oil is preferred over multi-grade engine oil is because it is less thick and therefore allows for better flow. Single grade engine oil is preferred for racing engines, although can also be used for regular road use.

We’ll be honest with you here; if you’re looking for a single grade oil for all of your 2-stroke motorbikes, you’re going to have to compromise a little.  There are plenty of single grade oils available for your 4-stroke motorcycle engine, but 2-stroke oils are a little different.  For example, some 2-stroke oils are blended with an anti-wear additive to protect the more delicate 2-stroke engine, but this can cause the lubrication to break down once the oil has heated up.  The solution to this is to stick to a 2-stroke oil that’s been designed specifically for your bike.  That way, you can rest assured that the oil is still providing the lubrication your engine requires once it’s been heated up.

  • What’s the difference between mineral, semi-synthetic and fully-synthetic oil?

Semi-synthetic and fully-synthetic motorcycle oils are not only cost-effective, they also offer many benefits to motorcyclists. However, as with most products, consumers should do some research before buying and learn the difference between the two. Semi-synthetic and fully-synthetic oils are created in very different ways.

Best Motorcycle Oils – Reviews

The best motorcycle engine oils are going to have a few characteristics, namely synthetic base oils, oxidation inhibitors, film strength, and anti-wear additives.  Let’s look at each of these, and take a look at the 6 most recommended motorcycle engine oils:

How do you know which motorcycle engine oil is best for your bike?

When it comes to which motorcycle engine oil is best for your bike there are a few things you should consider first before making a choice.  First, you should consider the type of motorcycle you have.  If you have a sport model you’re going to need a lighter weight oil to ensure that your bike revs up quickly and that your engine isn’t sluggish.  If you have a cruiser you don’t want to go too heavy on the oil because the engine needs to be able to rev easily so that you can get through the traffic quicker.  You also need to consider how long you will be using the oil.  If you’re going on a long trip you’re going to want to make sure that your oil is correct.  If you’re just using the oil for your daily commute you don’t need to spend the extra money on expensive oil.

  1. Motul 5000 4T 10W40

    The Motul range of oils provide a high quality lubrication of the engine and transmission, as well as guaranteeing optimum protection and performance even in the most demanding conditions. Motul motorbike oils are specially adapted to each motorcycle model. Motul 5000 4T 10w40 oil is particularly suitable for sporty motorcycles equipped with high-revving engines such as Supermotard, Superbike, two-stoke and trial bikes. Thanks to the special formulation, it ensures maximum reliability and engine protection. Available in a variety of formats: oil, 1L, 5L or 25L packaging.

  2. Febi bilstein 32945 Engine Oil SAE 5W-30 Longlife

    The Febi Bilstein 32945 engine oil is hard to find but its worth it. You should never use synthetic engine oil in an older motorbike. It’s good for newer motorcycles though. If your bike is newer than 2005, then you can use synthetic oil.

  3. Castrol 14EAFF Power 1 Racing 4t 5w-40 Motor Oil

    Castrol 14EAFF Power 1 Racing 4t 5W-40 is a high performance synthetic engine oil based on a combination of synthetic and conventional base oils for racing applications. Containing an advanced additive package including a proprietary Zinc Dialkyldithiophosphate (ZDDP) formulation with a reduced sulphur content to maximise protection of the engine, gearbox, clutch and drivetrain while reducing the build up of deposits.

    It is designed to offer the highest level of performance for both, 2-stroke and 4-stroke engines. It is a fully synthetic engine oil that delivers the highest level of ultra-high performance and total protection. It has been designed to satisfy the demands and performance of modern engines, while overcoming the challenges of todays’ tough emissions standards. The product has been designed to work as a single grade and is compatible with all grades of Castrol’s synthetic and conventional engine oil’s.

  4. Motul 5000 10W40 4T Semi-Synthetic Oil 1 litre (x4)

    Designed for use in modern 4-stroke motorcycle engines and for 4-stroke outboard engines. This full synthetic formulation combines a unique patented additive system with the proven performance of very high quality base oils to deliver a product with the ultimate in high temperature and oxidation resistance.  This product is the ultimate synthetic engine oil and is suitable for all 4-stroke motorcycles.

    It is a premium quality, high-performance engine oil that complies with the latest European and US specifications. The oil is manufactured to the latest standards and is optimized for use in modern petrol engines. It contains antifoam and dispersant additives and is suitable for use in turbo-charged and normally aspirated engines. It is compatible with petrol, alkylate, and diesel.

  5. Silkolene Super 4 10W-40 Semi synthetic 4 Stroke Motorbike Oil

    Silkolene Super 4 10W-40 Oil is a high performance 4 stroke motorcycle engine oil designed specifically for use in off road motorcycles, motocross bikes, trail bikes, enduro bikes and mini bikes. It is a fully synthetic oil which provides enhanced protection, engine cleanliness and performance.

    It is designed for use in motorcycles which are hard worked, very dusty, wet or muddy, or used in harsh conditions. It also provides excellent protection against wear and has a high temperature range to ensure long engine life. It protects against wear and provides maximum lubrication in both on and off road conditions.

  6. Castrol 15049A Synthetic Power 1 4T SAE 20W-50

    It is  a multi-grade engine oil designed for use in Euro 5, Euro 6 and ULEV2 vehicles.  It is also suitable for use in transmissions, hydraulic systems and differentials.  It offers a combination of high-quality synthetic base fluids and additives, such as corrosion inhibitors, antioxidants, anti-wear agents and detergents.

    It is formulated to meet the demands of modern engines, and works to reduce engine operating temperatures, to increase horsepower and improve fuel efficiency.

    It is a 4-stroke engine oil, is a fully synthetic, multi-grade oil, and is suitable for use in all motorcycles.The Castrol 15049A is a unique combination of advanced synthetic technology and high performance additives. Formulated to provide maximum engine protection, to help extend both the life and the performance of modern 4-stroke motorcycle engines. A unique combination of synthetic base oils and synthetically produced additives offers an unbeatable combination of engine protection, performance and extended engine life.

Top Motorcycle oil brands

Motorcycle oil brands are important for motorcycle enthusiasts because a motorcycle is nothing without the oil that keeps it running smoothly. Motorcycle oil brands are available from a variety of manufacturers, and each manufacturer will have at least one type of brand that is geared toward a specific type of motorcycle. It is recommended to use the best motorcycle oil brand in order to enjoy the maximum performance and protection from the motorcycle’s engine.

Motorcycle engine oil prices

Motorcycle engine oil prices are going up. The price of the average motorcycle engine oil has risen by 6.2% in just the last month and a further 6.3% in the last year. In the UK, the average price for a litre of engine oil increased by 2.0 pence in June 2020 compared with May 2020. The price of engine oil has been increasing since March 2020, rising by 37.4 pence over the past year.

Frequently Asked Questions


What does the JASO oil rating mean?

The Japanese Automobile Standards Organisation (JASO) has been offering oil quality standards for passenger cars for over 20 years, and in that time the JASO oil rating has become the industry standard. The JASO oil rating is a system that is designed to provide a general indication of the quality of motor oils used in gasoline-powered vehicles.

The JASO standard, or JASO MA, defines a set of requirements for engine oils to be used in a group of vehicles commonly referred to as multi-viscosity oils.2 The JASO MA standard, the most recent in a series of specifications issued by the Japanese Automotive Standards Organization, is based on the older API SM and SJ grades.3 While various versions of the standard exist to accommodate different requirements of different vehicle manufacturers, all JASO MA oils must meet the requirements specified in the JASO MA standard, defined as an oil that can be used in a range of viscosities, and that does not exhibit viscosity breakdown at temperatures of up to 195 degrees Celsius.

What does the API oil rating mean?

API stands for the American Petroleum Institute, and it is the  U.S. standard for rating engine oil performance for gasoline and diesel engines. The  API of motor oil is determined by measuring the oil’s ability to reduce the engine wear in terms of ash, volatility, sulfur, acidity, and metal compatibility. The American Petroleum Institute, originally founded in 1919, is a private trade association made up of more than 500 oil and natural gas companies. In 1928, the API created the first official standards for engine oils.

The American Petroleum Institute (API) is a United States trade association that sets standards for the oil and natural gas industry. The API assigns a rating to every oil brand so consumers know which formulations are best for their particular vehicle. The rating is referred to as the “Service Symbol,” and it appears after the brand name on the oil’s packaging.  The API Service Symbol is a rating system that indicates specifications for engine oil in terms of its performance, quality, and consistency.  The API Service Symbol is a rating system that indicates specifications for engine oil in terms of its performance, quality, and consistency. The API assigns a rating to every oil brand so consumers know which formulations are best for their particular vehicle. The rating is referred to as the “Service Symbol,” and it appears after the brand name on the oil’s packaging.

What does 10W40 mean?

10W-40 is the most common engine oil specification. It indicates that the oil has a weight of 10W, such as 10W-40. This refers to the viscosity of the oil and the “40” is the temperature range it is designed to work in. Since the oil weighs 10, it’s thin and designed to flow at lower temperatures. The 40 in the oil’s weight indicates the temperature range it is designed to work in is between 40*F and 212*F. This range covers both summer and winter use.

10W40 is a motor oil grade that indicates the base oil viscosity grade (10W), and the SAE viscosity rating of the oil at 40 degrees Celsius (W). The 10W40 grade is commonly used in older model cars that use carburetors instead of fuel injection.

Can I use car oil in a motorcycle?

The lubricants in car oil are made for specific engines. While there are a few engines that can use either automotive or motor oil, the vast majority require a specific type of oil for optimum performance. Motor oil is specifically designed for the viscosity and lubrication needs of each engine. Automotive engine oil is designed specifically for cars and trucks, whereas motorcycle oil is designed specifically for motorcycles. Engine oils are not interchangeable.

What’s a running-in oil?

Also known as break-in oil, a running-in oil is a special oil used to lubricate and protect a new engine during its initial break-in period. Also known as break-in oil, a running-in oil is typically a special low-viscosity oil designed to be thin enough to provide lubrication to the engine’s moving parts while at the same time minimizing the amount of wear-and-tear that the parts endure during the break-in period. The running-in oil serves to protect the engine against wear and to reduce the chances of any engine damage during the first few hundred miles of operation.

The first oil you buy has to be designed specifically for this purpose, as it is known as running in oil. The oil is made to be both thinner than normal oil and less viscous in order to allow the engine to run very smoothly during the first few hundred miles of use. Many people tend to think that the thinner oil will give them better gas mileage, but this is only a temporary boost.

Additives and cleaners

Engine oil additives and cleaners are designed to do several things: clean the engine, lubricate it, protect it from wear and rust, and sometimes even increase the power output.  While many motorcycle engine oils already contain additives that fulfill the second, third and fourth purposes, adding an oil additive can produce a synergistic effect, helping the engine run smoother and last longer.

Long term oil

The term ‘long term’ engine oil is, as you may have guessed, an engine oil that is capable of keeping the various components of the engine lubricated for a prolonged period of time. In fact, most long term engine oils are capable of keeping an engine lubricated for a period of between 3 and 5 years. The exact amount of time that long term engine oil is capable of keeping a vehicle running is directly dependent upon the oil’s viscosity and its level of protection, and is also subject to the vehicle itself and the type of driving that the vehicle is put through. If you drive a long term engine oil vehicle regularly, it will likely need changing fairly regularly, as long term engine oil is incapable of providing as high a level of protection as a short term engine oil.

Oil change intervals

As an owner, it’s important to know when is the best time to change your engine oil. You should change your motorcycle engine oil every 3,000 miles or 3 months, whichever comes first. Oil must be replaced more often under certain circumstances, such as when your motorbike is regularly used in heavy traffic or if you often travel long distances.

Oil Change Intervals (OCI) are the main thing to consider when maintaining a motorbike engine. They’re also often a point of confusion among motorcyclists, who often aren’t sure how often they should get their motorcycle oil changed. It’s common to worry that changing the oil too often will harm your motorbike, but the opposite is true. The risk of doing this is that, if you get it done less often than you should, it can do serious damage to your engine.

Motorcycle engine oil viscosity

A motorcycle engine oil viscosity rating is the measure of a motor oil’s resistance to flow at a specific temperature. The oil is tested using the American Society for Testing and Materials (ASTM) D-445 or the International Lubricant Standardization and Approval Committee (ILSAC) test depending on the country.  For example, the American Society for Testing and Materials (ASTM) D-2270 is the viscosity test for mineral oils while the European standard for automotive oils, the International Lubricant Standardization and Approval Committee (ILSAC) GF-4, is used for semi-synthetic oils. Motorcyclists should be aware that a 10W-30 is less viscous (easier to flow) than a 10W-40.


We’ve come to the end of this review of the best motorcycle engine oils on the market. Like any review, we try to cover the entirety of the subject, and while the best oils for motorcycles continue to innovate, any of the oils reviewed will go a long way to keeping your motorbike engine in tip-top condition. If you’re keeping up with your engine oil changes, changing them every 3-4,000 miles, you can be assured of many years of happy motorcycling!