Suspension fluid is a vital component that, although it does not always receive as much attention as engine oil or brake fluid, plays a fundamental role in the comfort, safety and durability of the motorcycle. Without it, every bump, curve or irregularity in the road would feel like an earthquake.
What are the functions of suspension fluid?
- Impact absorption: every time you hit a pothole, the suspension fluid absorbs part of the impact energy, preventing it from being transmitted directly to the chassis.
- Driving stability: it keeps the wheels in firm contact with the road surface, even on tight corners or uneven terrain.
- Reduced mechanical wear: it reduces internal friction and protects the moving parts of the suspension system.
Types of suspension fluids:
These are the types of suspension fluids:
Advantages of performing maintenance and consequences of not replacing the fluid
We can find the following advantages:
- Longer system life: clean fluid with intact properties prevents the system from working too hard.
- Better road performance: greater control and driving comfort.
- Savings on repairs: prevention is always cheaper than repairing damaged shock absorbers.
On the other hand, the consequences of not replacing the suspension fluid would be:
- Loss of absorption capacity: the vehicle will feel stiffer and impacts will be more abrupt.
- Damage to shock absorbers: friction and excessive heat deteriorate the internal seals.
- Safety risks: less control of the vehicle during critical manoeuvres.
Suspension fluid viscosities
One of the biggest mistakes people make when choosing a suspension fluid is comparing viscosities based on the manufacturer's specifications. However, suspension fluid viscosities are not standardised, and each manufacturer labels its lubricants differently. As a result, comparing similarly described grades can result in two fluids with completely different viscosities.
A better way to select suspension fluids is to use recognised systems such as SAE and ISO. Combining the two can help provide a more accurate picture, although it is still difficult to compare fluids if their viscosity index is different.
FUCHS Silkolene suspension fluids use both SAE and ISO in their description to help select the right fluid. SAE defines viscosity at high temperatures (100 ⁰C) and ISO does the same at 40 ⁰C.
¿What suspension fluid do I need for my vehicle?
We understand that choosing the right lubrication for your motorcycle can be a complex task.
The FUCHS Oil Chooser takes the guesswork out of it and allows you to find the right product in less than 1 minute. Simply enter your registration number or the make and model of your motorcycle to discover the right lubricants for your specific vehicle.
You can also contact an expert using the enquiry form below.
FAQs
Frequently asked questions about engine oil:
No, they are different fluids with different functions.
It is not recommended, as they may contain incompatible additives.
At least once a year or every 20,000 km.
You will lose comfort and safety and damage the suspension system.
Yes, with the right tools, but it is best to go to a professional.
