Do Motorcycles Have Transmission Fluid?

Transmission fluid is a lubricant that improves the smooth performance of gears and shifters. It is part of automatic and manual transmissions and keeps the gearbox cool in motorcycles.

Do Motorcycles Have Transmission Fluid? Motorcycles have transmission fluid to protect the transmission, quick shifting, reduce gear noises, improve lubrication, and increase gearbox lifespan. Engine and transmission fluids are identical, called shared sump, and require replacement after 2500 to 4500 miles.

The differentiation between engine oil and gearbox fluid is challenging. Sometimes, filling the engine oil indicates the upgrade of this lubricant. 

Why do motorcycles have transmission fluid?

The manufacturing companies suggest particular lubricants for the gearbox of a motorcycle. Due to the following benefits, motorbikes comprise it. 

Protection of transmission

The transmission fluid of the motorcycles has specific viscosity. Therefore, it maintains this thickness limit and resists the loss of particular viscosity levels.

As a result, it can reduce excessive pressure. As a result, the gears can rotate at higher rotations with this lubricant.

It increases the reliability of this lubricant. In such circumstances, it facilitates maximum protection of the relevant parts of the system.

Its high flow can resist the damage of metallic parts. As a result, the safety and protection level enhances above the threshold.

Quick shifting

It is a free-flowing liquid with particular thickness and flow limits. It can move and reach all built-in parts of the gearbox according to its properties.

It can lubricate these parts and keep them stable for a long time. The shifter works smoothly because the lubricant removes friction.

It reduces the internal temperature and heat range of the system. In addition, the built-in solenoid, clutch, and aligned parts remain stable. 

The shifters last longer with or without maintenance. It happens when the lubricant supports its smooth performance.

Quick shifting of gears affects the speed control. Also, the rider can control the handlebars properly, and the wheels align accordingly. 

Reduce gear noises

The old and used gears produce loud and irritating sounds. These noises are audible in the motorcycles, which comprise an automatic gearbox. 

These sounds generate because the transmission lubricant level decreases from the standard range. In such circumstances, friction produces, which leads to these annoying sounds. 

However, the stable lubricant level decreases the internal friction. The heat reduces, which suppresses the sounds. 

As a result, clunky and loud sounds disappear from this system. It relaxes the rider and increases the riding focus.

The reduction of these unwanted sounds decreases the number of accidents. 

Smooth performance with lubrication

Transmission fluid in motorbikes provides excessive lubrication. It can lubricate moving parts like gears and their shifters. However, the lubrication results in smooth and fast performance of different components.

They work without significant faults, cracks, and failures. They do not undergo failure and malfunction because the lubricant keeps flowing. 

Their work abilities increase and improve the safety of relevant parts. Also, the transmission works smoothly without frictional cracks and failures.

 Moreover, it does not require repair and service because the damages are not prominent. 

Longer shelf life of the transmission 

The presence of transmission fluid increases the reliability of mechanical parts. In addition, it improves the shelf life of the gearbox by keeping it free from damage and malfunctioning.

Furthermore, the shifts become smooth and enhance the shelf life of built-in transmission in the motorbikes. Moreover, the number of damage and service plans reduces.

You can keep the stable gearbox inside their frames for several years. It never undergoes sudden failure because the internal liquid has high performance.

It keeps the parts stable and increases its shelf life exceptionally. 

Do motorcycles have separate transmission fluids?

The shared sump is a specific term used by many motorcyclists. According to this term, their owners use engine lubrication oil in the transmission system.

Moreover, the fluid works as a lubricating liquid for both parts. It has changed on new motorbikes because the engine has become more advanced and unique. 

The number of cylinders has increased in these motors. Nowadays, you can use a similar lubricant for the engine and gearbox. 

You can take them to the service workshop and replace the engine oil. Furthermore, an identical fluid can reach the gearbox and provides high lubrication.

According to these properties, you can consider the lubricant as a shared sump for these components.

What are the different types of transmission fluid for motorcycles?

You can use 75W-140 oil in your advanced motorcycle brands. It is an acceptable lubricant with more thickness than other options. However, its thickness makes it challenging for the gearbox of the latest models.

SAE 110 is usable in their gearbox because it has supporting properties for the V-twin engines. You can prefer 20W-50V for the twin motor system.

It is suitable for 4-stroke engines with synthetic properties. In addition, it has API SL technology which boosts its performance.

It can increase the shelf life of gears, their shifters, and the engine. It is called 1V-Twin 20W-50, which offers high performance for the 4-stroke motors.

10W-40 is preferable for the 4-stroke engine. It works for the engine and transmission and provides maximum lubrication. 

How to replace transmission fluid in a motorcycle?

You can replace it on your motorcycle by adjusting it on a stable ground surface through stands. Through the manual, you can find the draining plug, which is present underneath its frame.

You can approach it sandwiched in the shock absorbers. Now, you can adjust a container underneath the draining valve.

With a specific wrench, you can remove the plug, which allows filling and is present on the upper side of the gearbox. Also, you can remove the plug and drain the old fluid in the collecting container.

With a rag, you can wipe off and clean the plug. You can keep the cap aside for further use. 

Swapping the O-rings makes the procedure reliable. You can adjust a funnel on the plug hole and slowly add the fluid. 

However, you can fill it according to OEM guidelines, adjust the cap and tighten it with a wrench.

You can wipe the additional lubricant with a soft cloth. Checking the leakage and damages is the final step of the procedure. 

How often do you change the transmission fluid on a motorcycle?

The fluid or lubricant of the motorcycle transmission requires replacement after a specific time. Several factors indicate the problem and compel the motorcyclists to swap. 

However, the lubricant becomes dirty because road dirt and debris move toward it. The dust mixes with the lubricant and reduces the shifting abilities of the gearbox. 

It produces loud and annoying sounds, which indicate that the lubricant requires a change. However, it needs a replacement after nearly 2500 to 4500 miles.

The replacement interval changes when the dust and debris blend with the lubricant. Moreover, the interval varies from one brand and model to another.

A burning odor, excessive leakages, and slow shifting of gears indicate the lubricating oil replacement. Therefore, during its low level, the motorcycle cannot perform properly. 

The gear slips, and their engaging abilities become slower than the actual limit. In such circumstances, you cannot leave the system without maintenance.

Upgrading the fluid level stabilizes the gear efficiency and performance.

Related Articles:

Are NADA Motorcycle Values Accurate?

Do Motorcycles Have Catalytic Converters?