Skip the auto shop - Our mechanics make house calls

How to Buy Good Quality Clutch Fluid

Quality Clutch Fluid

Cars with a manual transmission require fluid to change the pressure between the master cylinder (the clutch fluid reservoir) and the slave cylinder (the unit at the other end of the mechanism which facilitates engagement of the clutch). The fluid flows from the master to the slave when the clutch pedal is depressed, allowing you to change gears while driving.

There’s a secret to clutch fluid – whether in a conventional transmission or one with a hydraulic clutch – it doesn’t exist. Brake fluid is actually what’s used in these systems. It may be labeled under the name “clutch fluid” but you can be sure, as there’s no such thing, that the liquid inside is brake fluid.

Gradual loss of brake fluid in the clutch system is expected – but it shouldn’t need anything more than to be topped off on rare occasion. If you notice a sudden drop in fluid in the master cylinder you may have a leak and the components should be professionally inspected.

How to tell if your clutch fluid is low:

  • Slipping gears – low fluid prevents the clutch from engaging, which stops you from effectively changing gears

  • Unpredictable vehicle motion – lack of proper fluid levels can cause the car to buck and lurch

  • Vibration or grinding – either of these events during shifting can indicate low clutch fluid

Tips to make sure you’re getting good quality clutch fluid:

  • Choose a well-respected brand of DOT-4 brake fluid.

  • Don’t be fooled by “clutch fluid” labels on higher priced bottles. It’s the exact same thing as what’s in the brake fluid bottle.

  • Do not use DOT-5 brake fluid. DOT-3 is acceptable but DOT-5 contain silicone which cannot mix with other brake fluids and could cause damage to your transmission.

YourMechanic supplies top-quality clutch fluid to our certified mobile technicians. We can also install clutch fluid that you've purchased. Click here to get a quote and more information on clutch fluid replacement.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
Icon-warranty_badge-02

Skip the repair shop, our top-rated mechanics come to you.

At your home or office

Choose from 600+ repair, maintenance & diagnostic services. Our top-rated mechanics bring all parts & tools to your location.

Fair & transparent pricing

See labor & parts costs upfront, so you can book with confidence.

12-month, 12,000-mile warranty

Our services are backed by a 12-month, 12,000-mile warranty for your peace of mind.

Get A Quote

Need Help With Your Car?

Our certified mobile mechanics make house calls in over 2,000 U.S. cities. Fast, free online quotes for your car repair.

GET A QUOTE

More related articles

The Traveler’s Guide to Driving in Malaysia
CraigBurrows / Shutterstock.com Malaysia is a popular destination for many tourists today. The country has amazing sights and attractions that you will want to explore....
Veteran and Military Driver Laws and Benefits in Idaho
The state of Idaho offers a number of benefits and perks for those Americans who have either served in an Armed Forces branch in the...
P2159 OBD-II Trouble Code: Vehicle Speed Sensor B Range/Performance
Diagnostic Trouble Code (DTC): P2159 P2159 code definition Vehicle Speed Sensor B Range/Performance Related Trouble Codes: P2158: Vehicle Speed Sensor B P2160: Vehicle Speed Sensor B Circuit Low P2161:...


Related questions

Q: Rover clutch is not working. What is wrong?

Hi and thanks for contacting Your Mechanic. There could be 3 possible things that could be wrong with your clutch. The clutch could be out of adjustment, which for your vehicle it is self adjusting and may be needing to...

Q: Need an experienced VW mwchanic's ear on an odd sound

Hi there. Look for anything that rotates on the engine as accessories, like the pulleys, water pump, power steering pump, alternator, and A/C compressor. There could be a harmonic vibration admitting from one of the items making the noise. ...

Q: Truck idled, ran rough, fluid streaming from motor

Hello there, thank you for asking about your car. It's highly unlikely that brake fluid entered the combustion chamber. The noise also would not be caused by using synthetic oil instead of conventional oil. As for the oil pressure, I'm...