What is the best 10w40 Motorcycle Oil?

Asked By: Jaspreet Rashi | Last Updated: 17th April, 2020
Category: automotive motorcycles
4.2/5 (167 Views . 31 Votes)
Comparison Table: Top Motorcycle Oils 2019
Oil Type Configuration
Castrol Actevo Blend 10W-40
Honda GN4 Motorcycle Oil Conventional 10W-40
Castrol Power 1 Synthetic 10W-40
Shell Rotella T6 Synthetic Synthetic 5W-40

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Also, can I use 10w40 car oil in my motorcycle?

A car engine oil aims to reduce friction between moving parts in order to provide good fuel economy and efficiency. If the friction level is too low, the clutch will not be able to engage and will cause slippage. So what this means is you should choose a special motorcycle oil designed for your bike.

Subsequently, question is, is fully synthetic oil better for motorcycles? Put simply, fully synthetic oils will perform better and last longer than petroleum-based mineral oils because they have been designed to do so.

Then, what is the best oil to use in a Harley Davidson?

For Sportster 883cc and 1200cc motorcycles, the AMSOIL Synthetic 20W-50 Motorcycle Oil is recommended for both the engine and transmission. Older Shovelheads, Panheads and Flatheads the recommendation is to use AMSOIL SAE 60 Synthetic oil for optimum performance and protection.

What is the best V twin motorcycle oil?

The Best Synthetic motorcycle Oil

Brand & Product Name Price Rating
Castrol Power1 4T $ 4.6/5 See Price
Castrol Power1 V-Twin $ 4.6/5 See Price
Mobil 1 Racing 4T $$$ 4.7/5 See Price
Mobil 1 V-Twin $$$ 4.8/5 See Price

37 Related Question Answers Found

What happens if you put car oil in a motorcycle?

Because of the similarities in their function, using car engine oil in a motorcycle isn't detrimental to it. However, if it is used too long or used too much, those differences between the two oils can start to take a toll on the motorcycle engine which can eventually lead to bigger problems.

Is there a difference between motorcycle oil and car oil?

Car engine oils contain friction modifiers and are formulated with the aim of reducing friction between moving parts in order to provide good fuel economy and efficiency. Motorcycles, on the other hand, use the same oil for both the engine and the gearbox.

What oil do I need for my motorcycle?

The result is that 10W30 oil has less viscosity than a straight 30 when it's cold, though not so little as a straight 10 weight, so it's perfect at the engine's normal operating temperature.

The Beginners Guide to Motorcycle Oils.
Oil grade Viscosity @212°F
30 Weight 9.3–12.4
40 Weight 12.5-16.2
50 Weight 16.3 –21.8

Can I put synthetic oil in my old car?

It's not accurate to say that you should never use synthetic oil in an older car. In fact, Castrol EDGE High Mileage is a synthetic oil designed specifically for high-mileage cars. Also, anytime you change from conventional oil to synthetic oil, always make sure to change the oil filter with every oil change.

What does oil do in a motorcycle?


Oil is vital to the operation of your motorcycle and operates in three ways: reducing internal friction, cooling the components of the motor, and flushing the motor of debris. Oil lubricates the moving parts in the motor, preventing metal parts from coming into direct contact with each other.

What is the best 4 stroke motorcycle oil?

13 Best Motorcycle Oils (Reviews) in 2020
  • Shell Rotella T6 Full Synthetic Heavy Duty Engine Oil 5W-40.
  • Honda 4 Stroke Engine Oil 10W30.
  • Lucas Oil 10278 Engine Stop Leak.
  • Castrol Power 1 Racing 4T 10W40 Motorcycle Engine Oil.
  • Mobil 1 103436 Motor Oil 1 Quart.
  • Red Line RED42504 20W-50 Motorcycle Oil.

Can you use car engine oil in a motorbike?

Can I use car oil in a motorcycle? Car oil is designed to work in the engine, with a different oil in the gearbox. And the clutch is usually dry. Besides the fact that bike engines usually rev a lot higher, the oil in the engine also has to have additives that help it work with the much higher loads of a gearbox.

Can I use car oil in my Harley?

Answer: As long as the primary and tranny are separate sumps and there is no concern for clutch performance, then Mobil 1 15W-50 can be used in a Harley.

Should I run synthetic oil in my Harley?

Synthetic oil is preferable to mineral oil primarily because it has a higher heat tolerance. That is very important in air-cooled engines like the one in your Harley. Not all synthetic oils are the same. Some that claim to be 100% synthetic aren't.

What oil is equivalent to HD 360?


H-D 360 Motorcycle Oil - SAE 20W50 - 1 Quart.

Is synthetic oil good for Air Cooled Engines?

Quote: Some air-cooled websites advise that synthetic oils can reduce oil temp, but actually increase cylinder head temps. They also say synthetic should not be used in aircooled engines which still have stock oiling systems. Synthetic oils are widely used in air cooled motorcycle engines.

What is 20w50 oil used for?

20W50 motor oil is a high viscosity oil that provides a cushioning and protects against metal-to-metal contact. It is also a more effective sealant than thinner oils. Both of these benefits extend engine life.

Who makes Harley Davidson synthetic oil?

AMSOIL 20W-50 with AMSOIL V-Twin transmission fluid! Harley Davidson advertising states that "SYN3 oil is a proprietary blend created specifically for Harley Davidson motors, transmissions and primary chaincases".

Where can I get my motorcycle oil changed?

Take it to the “service desk” of your local dealer (preferably those selling that brand of bike), or if none nearby, to any motorcycle dealer. Call them first to book an appointment. Alternatively, you might have a motorcycle mechanic nearby who could do it (see local motorcycle newspaper if you have one).

What oil do you use for a wet clutch?


The key is to use a lubricant specifically formulated for wet clutches. AMSOIL Synthetic V-Twin Motorcycle Oil, Synthetic Metric Motorcycle Oil, Synthetic Dirt Bike Oil and Synthetic Dirt Bike Transmission Fluid contain no friction modifiers or extreme-pressure additives.

Why do Harley Davidsons leak oil?

Harley-Davidson is recalling 57,000 motorcycles worldwide due to an oil line that can come loose. This could drop oil in front of the rear tire and cause a crash. So far, the company has said that the oil leak problem has cause two crashes and a minor injury, but if the recall isn't heeded, that number could grow.

What does 10w 40 mean in oil?

In a 10w-40, the 10w bit (W = winter, not weight) means that the lubricant oil must have a certain maximum viscosity/flow at low temperature. The lower the "W" number the better the oil's cold temperature/cold start performance. The 40 in a 10w-40 means that the oil must fall within certain viscosity limits at 100°C.