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  • Repairs
  • Stops & Seals Trans Fluid Leaks
  • Restores Gaskets & Seals
  • Works with All Types of Trans Fluid
  • Use in Automatic & Manual Transmissions

Rislone Transmission Stop Leak Concentrate is specially designed to stop seal and gasket leaks caused by normal transmission wear and age. Works with ALL domestic and import, automatic and manual transmission fluids.

  • Stops & Seals Transmission Fluid Leaks
  • Restores O-rings & Seals to Stop & Prevent Leaks
Dosage & Directions

Automatic - 1 bottle treats up to 9.5 litres of fluid. For larger systems, use 1 bottle for every 9 litres of fluid capacity.

Manual – Use approximately 60 mL per litre of fluid capacity.

Add entire bottle of Stop Leak to transmission to restore fluid level. Do not overfill. Leaks usually stop in 300km or 3 days of driving. If leak continues, second application may be required or mechanical attention is needed.


Rislone Transmission Stop Leak Concentrate is compatible with CVT transmissions.


Data Sheets





Will Rislone Transmission Stop Leak clog my filter?
No. Unlike our cooling system product, Rislone Transmission Stop Leak has no particles to plug the leak, it works chemically to stop leaks in gaskets and seals.

Will Rislone work in all types of transmission fluid?
Yes, Rislone is one of the only transmission stop leaks that is compatible with all petroleum-based transmission fluids including synthetics. Suitable for CVT Transmissions.

How does Rislone Transmission Stop Leak work?
After time, transmission seals tend to dry out and shrink. Rislone revitalizes these seals and makes them soft and pliable again.

How much do I install?
Rislone Transmission Stop Leak Concentrate is designed for one bottle to be installed in a passenger car or light truck. For larger systems use one bottle for every 9 litres of fluid.

If first application does not completely stop leak, may I add another bottle?
Yes, you can install a second application for hard to stop leaks. If your leak still persists after a second application, then mechanical attention may be required.

If I install more than the required amount, will it work faster or better?
No, we have formulated our product to work best at the suggested dosage amount.

How long does it take to start working?
Rislone Transmission Stop Leak starts working the minute you install and start driving the vehicle. You will usually see results in about 300 km or three (3) days of driving.

Can Rislone Transmission Stop Leak be used in a standard (manual) transmission?
Yes, you can use this product to help stop leaks in a manual transmission as long as it uses an automatic type transmission fluid. Use ½ the bottle for most applications.