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Top 6 Best Motorcycle Oils Recommended In 2021 Reviews

When it comes to maintaining your motorcycle, the first thing that you must take care of is the engine of your motorcycle. And the first thing to do there is to oil your motorcycle’s engine.

Most people think that all oils are the same, and any oil can protect your engine from corrosion and unnecessary friction. However, this is not the case. You need to find the best motorcycle oil that will be made especially for your motorcycle’s engine.

The best part?

You’re about to learn all about the best motorcycle oils and how to the ideal one for yourself.

Top 6 Best Motorcycle Oils Recommended In 2021 Reviews

Best Motorcycle Oils Comparison Table

5 out of 5 stars (5 / 5)
4.8 out of 5 stars (4.8 / 5)
4.8 out of 5 stars (4.8 / 5)
4.8 out of 5 stars (4.8 / 5)
4.8 out of 5 stars (4.8 / 5)
4.8 out of 5 stars (4.8 / 5)

Top 6 Best Motorcycle Oils In 2021 Reviews

1 Shell Rotella T6 5W-40 Diesel Engine Oil

Shell Rotella T6 5W-40 Diesel Engine Oil
Our rating:5 out of 5 stars (5 / 5)


  • Keeps the engine safe from unnecessary friction and wear and tear.
  • Highly efficient.
  • Keep all kinds of debris from building up.
  • Affordable.
  • Helps in maintaining vehicle emission compliance standards.
  • Offers outstanding fuel economy.


  • It is difficult to get its cash back rebate executed.
  • The packaging is inefficient.

This heavy-duty synthetic diesel engine oil for motorcycles provides the engine of your vehicle with great safety and cleanliness. It also acts as fuel oil, serving as a bonus for those who can own vehicles powered by diesel as fuel. Moreover, a substantially higher level of protection against harmful engine wear is provided by improved efficiency.

The viscosity of this diesel oil does not differ by much, except in the cold or sun. Shell Rotella uses Shell’s Triple Defense Plus technology. It guards your engine against soot, soil, and other debris from building up.

They also offer more power to your engine and improve its capabilities when you need to bear a heavy load. Also in case you need to pull a boat on the lake for a day you can trust this oil for your engine. You will be able to save money, time, and fuel consumption thanks to this oil.

Also, this oil offers you some of the best benefits at a much lower price than other diesel oil brands. When unpackaging the container; however, some customers complained about leaking from bottles. It also comes with a cashback rebate, but several customers claim that they have had trouble getting their return.

2 Red Line 42504 20W-50 Motorcycle Oil

Red Line 42504 20W-50 Motorcycle Oil
Our rating:4.8 out of 5 stars (4.8 / 5)


  • It features anti-wear technology.
  • Fully compatible with V-twin and sports bikes.
  • The structure remains unaffected even at high temperatures.
  • The formula doesn’t freeze in cold temperatures.
  • The formula lasts for longer in the engine than most oils.


  • Not ideal for lightweight engines.
  • Expensive as compared to competitors.

The Red Line RED42504 is made for V-Twin engine motorcycles. Motorcycles such as Twin Cam or Evolution, as well as aftermarket engines of the same style. This is not only quality oil for your bikes but also one of the most awesome Harley Davidson gift ideas for one of your biker buddies.

You will be able to use this not only on your cruiser bikes but also on sports bikes, off-road bikes, as well as other vehicles like ATVs. Due to the use of modern additives, even at higher operating temperatures, this oil will not become thin. This means you will still get maximum performance. Cold starts on your engine will also not raise issues. Moreover, this 20W-50 oil will guarantee smooth functionality.

You also benefit from an extended drain period with this product. It will keep more cash in your wallet to spend on other cool stuff.

3 AmazonBasics Full Synthetic Motor Oil

AmazonBasics Full Synthetic Motor Oil
Our rating:4.8 out of 5 stars (4.8 / 5)


  • Reduces low-speed pre-ignition.
  • Works efficiently.
  • Reduces friction and wear and tear significantly.
  • Very affordable, considering the performance.


  • No oil indicator on the bottle.
  • Not certified by European car manufacturers.
  • Not suitable for turbocharged cars.

The heavy-duty diesel and gasoline engine oil from AmazonBasics does what you would expect from any diesel motorcycle oil. It coats engine components well to reduce friction and wear and tear. It does not stand out in terms of efficiency or longevity. But, it shines since it provides standard performance at a considerably low cost.

The formula is designed to keep the engine from extra wear and tear, which is normal with heavy-duty use of the engine. In cold weather, it does well and has a reasonable degree of viscosity and thermal breakdown resistance. Along with strong burn-off resistance.

But, the container’s body is somewhat lackluster and variable. Some containers, for example, have a transparent window to measure residual oil after use. While others do not have a window, making it hard to see how much oil is left.

4 Castrol 06585 EDGE Bio-Synthetic 0W-20 Advanced Synthetic Motor Oil

Castrol 06585 EDGE Bio-Synthetic 0W-20 Advanced Synthetic Motor Oil
Our rating:4.8 out of 5 stars (4.8 / 5)


  • Provides you with great value for your money.
  • Features patented titanium technology.
  • Lubricates the engines efficiently.
  • Keeps the engine clean by preventing any debris from sticking.


  • Not ideal for a cold start.

Here’s another Castrol product that proves to be perfect for those on a small budget. Compatible with all types of cars, including Mercedes, Porsche, Ford, and more. It is a stable 0W-20 synthetic oil. You will be able to use it to boost the engine efficiency of your bike and make it smoother and quieter.

This oil provides superior protection for engines. It works against wear and tear, oxidation, and deposits. Overall, the oil typically decreases engine wear and tear while prolonging its life and making it considerably smoother. It’s much more powerful than traditional and synthetic blend oils. You’ll see the efficiency changes in your vehicle instantly.

The key thing to bear in mind about the product is the fact that it is no longer licensed by BMW LL-01. Hence, just verify with the dealer if this product will work for your engine properly or not.

You might have a problem with the nature of the container when it comes to the product itself. On the side, there is a see-through strip that should help you to guess how much oil you have poured out, but it’s hard to read. You may end up adding more oil than required because of that.

5 Quicksilver 4-Stroke Marine Engine Oil – SAE 25W-40

Quicksilver 4-Stroke Marine Engine Oil – SAE 25W-40
Our rating:4.8 out of 5 stars (4.8 / 5)


  • Specially formulated to protect against extra wear and tear.
  • Highly compatible with all 4-stroke vehicles.
  • Has very high viscosity retention.
  • Offers you high strength and protection.
  • Affordably priced.


  • May be too heavy for vehicles that are not 4-stroke.

For simple marine oil needs, this kit is a great option. It’s an inexpensive kit that’s easy to use, convenient in design, and ideal for all 4-stroke marine engines.

It was initially made with Mercury Mariner engines in mind but later developed further to be compatible with all engines. To fit different engine types, it is available in three different configurations. These sizes include 25 hp to 30 hp motors, 40 hp to 60 hp motors, and 75 hp to 115 hp motors.

It is 25W-40 engine oil that has been formulated with a variety of additives to provide additional engine protection. Some of these additives include the Flagship Safety formula from Quicksilver, which has anti-wear properties that improve crankshaft safety by up to 33 percent.

Every kit comes with a variety of tools for changing essential oil, including a marine oil bottle, a new oil filter, a drain plug seal, a convenient drip tray, and instructions that are simple and succinct.

If you’re looking for a reliable brand with an inexpensive all-inclusive oil change package, then this Quicksilver 4-Stroke EFI Marine Oil package is worth the money. Make sure you buy the correct kit for your type of engine. But, do read the customer feedback to ensure that your engine is compatible with the supplied oil filter or fuel filter.

6 Yamalube All Purpose 4 Stroke Oil

Yamalube All Purpose 4 Stroke Oil
Our rating:4.8 out of 5 stars (4.8 / 5)


  • It has high longevity as compared to most available options.
  • Its medium thickness makes it ideal for both high and low temperatures.
  • Great in maintaining the correct friction between clutches.


  • The price is quite high.

If you are looking for high-quality oil that can survive winter use, then it can do quite a good job with its 10W-40 viscosity-grade oil. This oil can easily bear with low winter temperatures. But, it can also be used during the summer. Moreover, it has a very strong resistance to elevated motor temperatures.

It provides a stable clutch output since the product is produced on a base of mineral oil, . This will shield the engine from further wear and tear, which will extend its life. Plus, this motor oil can also be used on several other engines, such as your car, your motorcycle, your ATV, and so on.

Considering that this is mineral oil, it is also very attractive in terms of price. Having said that, its quality, particularly since it is a famous brand, is very superior. It’s sold in a one-gallon canister as well, so it’s likely to last you for quite a while.

Best Motorcycle Oils Buying Guide

Before buying yourself the best motorcycle oil, there are certain factors that you must consider. These will help you get the best value out of your purchase.

  • Customer Feedback

If you have no idea or any general knowledge of motorcycle engine oils, then it would be better to rely on the opinion of others, specifically pros or best motorcycle oil reviews. But, you can’t just march into a store with no idea what motorcycle oil to choose and ask someone else to choose it for you.

best motorcycle oils

Let us remind you; you are the owner of your motorcycle. No one knows which motorcycle oil will be perfect for your motorcycle better than you will. So, the only option left is reading an online review, which we believe is a lot better idea than walking into a store.

Online reviews will help you understand the pros and cons of different motorcycle oils. Also, since you are exploring the options, there will be no pressure on you to buy any particular one on the spot.

So, overall, we can say buying motorcycle oil from online sites is probably the best option these days, as you can get the best motorcycle oils for your motorcycle at a better value.

  • Compatibility

You must figure out which motorcycle oil will be suitable for your motorcycle – synthetic, mineral, or semi-synthetic oil.

To check the compatibility, you must examine your motorcycle needs and decide which one will be the right choice. Remember, if you choose the wrong one, the money will not be the only thing you will waste, but you will also reduce the life of your motorcycle.

best motorcycle oil guide

  • Viscosity

Viscosity is an important factor to consider while considering a motorcycle oil. This is the thickness and consistency of the oil. Viscosity plays a major role in the performance of a motorcycle engine, according to the pros, especially when subjected to high temperatures.

You should make sure that the oil you buy isn’t too much or too little thick.

  • Additives

Checking the additives is a very common and important factor to consider when choosing motorcycle oil. Mineral oil comes with detergent as an additive. And detergent has a property to remove dirt and acids from the engine to make sure it is kept clean and works without any trouble. Not just that, but it also improves cooling.

  • Price and Performance

Most people see efficiency and cost differently. According to some, cheaper products have less efficiency than expensive ones. But that’s just an old myth.

While buying motorcycle oil, you must always give priority to efficiency over cost. Since efficient motorcycle oil will provide the best performance at a lower cost. And when it starts giving more at a lesser cost, you will discover that the product is providing great value for the money.

  • Compliance Standards

As high-quality motorcycle oils have a label provided by the manufacturer, check the body of the product for the standard label. On their body, they’ll have an SAE, JASO, or API mark. Such symbols suggest choices of high quality.

Benefits of Motorcycle Oils

Using oil in your motorcycle’s engines isn’t without its benefits. Instead, it is a must if you want to keep your motorcycle’s engine healthy and sound. Hence, consider some of the benefits as follows and understand why it is so important to service your motorcycle’s engine with oil.

  • Lubricates the Engine

The main role of engine oil is to ensure that all engine parts are given adequate lubrication to reduce friction and wear and tear. By lubricating two moving parts, the motorcycle engine operates smoothly, covering engine parts with a thick slick film.

motorcycle oils

  • Cools the Engine

Engine oils carry away the heat from lubricated sections. Oil returns to the oil pan when the engine is turned off. When it is in the oil pan, the finest motorcycle engine oil cools down. It is important that the temperature of the oil never goes above the flashpoint.

  • Cleans the Engine

Two basic ingredients make up engine oil – additives and base oil. While the additives provide a cleaning mechanism for additional engine safety, the base oils assist in lubrication. Motorcycle oil is intended to clean up any components of the engine that it touches. For cleaning the carbon formations collected on the engine parts, the additives are well-formulated.

  • Improves Efficiency and Performance

Since motorcycle oil helps keep your engine clean, the engine of your bike extracts the best fuel efficiency. It maximizes the mechanical performance of your engine when your engine is clean and running smoothly.

  • Prolongs Engine’s Life

A well-maintained engine can last longer than an engine that is being abused. Using good engine oil on a regular basis can help extend the life of your engine. Motor oil tends to reduce the accumulation of sludge, keeping the internal components clean and well maintained.

Types of Motorcycle Oils

There are three main types of motorcycle oils that are commonly used. All of them are briefly explained as follows.

  • Synthetic Oils

Synthetic oil is a modified oil, which as an essential additive, contains pure crude. With the progress in technology, synthetic oils have changed over the years. Due to reduced viscosity, synthetic oils are common, which makes movement smoother for parts of motorcycle engines and reduces internal friction. The issue with synthetic oils is that they are very pricey, which can be a small price to pay for long life and safety.

  • Mineral Oils

Mineral oil is composed of crude oil with various additives in order to neutralize acids. In addition, some businesses use friction modifiers in their products to boost lubrication so that the product does not run out. If you are using a new motorcycle, mineral oils are very useful. For the first few miles, they provide great protection for new engines. Also, it is advisable to use this form of oil if you have a low-capacity engine.

  • Semi-synthetic Oils

Semi-synthetic oil, as the name implies, is a combination of synthetic and mineral oils. Synthetic oil is needed by high-performance motorbikes, while mineral or traditional oils keep the engine clean and running smoother for longer. Semi-synthetic oil is highly suitable for 125-180 cc medium-sized engines.

Top Brands

The market is full of different brands, and it can be tough to figure out which ones are the best. Hence, we have shortlisted some top brands that can always be trusted.

best motorcycle oil

  • Shell

Shell is a global group of energy companies with more than 80,000 employees in more than 70 countries. It is known to use advanced technologies and to take an innovative approach to help build a sustainable energy future.

Shell has set honesty, integrity, and respect for people as its core values. These values underpin all the work that it does. Hence, Shell always provides its customers with the best, most innovative, and sustainable products.

motorcycle oil

  • Castrol

Castrol is a British industrial and automotive lubricant brand. It provides a wide variety of lubrication applications for oils, greases, and related products. Charles Cheers Wakefield founded Castrol back in 1899.

Its name came out after castor oil was applied to the lubricant formulations by researchers working on Castrol products. Castrol has signed deals with Toyota and the Monster Energy NASCAR Cup Series and is a big player in motorsports.

Motorcycle Oils Pricing

You can find some of the best motorcycle oils in three main price ranges.

  • Under $20

Motorcycle oils can be very cheap, especially if your motorcycle prefers natural or synthetic blends. If you are looking to reap the benefits of the best motorcycle oils at an affordable price, synthetic blends are a good choice.

  • $20-$50

Professionals mostly use motorcycle oils in this price range. Since they have their full synthetic formula, low viscosity, high efficiency, and performance.

  • Over $50

There’s not a lot of oil options in this price bracket for motorcycles. Here, motorbike oils are high-performance oils acceptable for racing bikes. They are thin with high performance, and capabilities to improve productivity. For small-capacity bikes, these motorcycle oils are not very suitable.


We have listed some of the best offerings in the market, and all of them provide your motorcycle with great value.

However, only one of them can be the Best Motorcycle Oil, and according to use, it is…

Shell Rotella T6 5W-40 Diesel Engine Oil

This oil will keep your engine safe from unnecessary friction and wear and tear. It is highly efficient. It also keeps all kinds of debris from building up. Moreover, it helps in maintaining your vehicle in such a way that it complies with the vehicle emission compliance. Lastly, it is very affordable.

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