Auto trans stop leak has been specifically formulated to control leaks in automatic transmission systems due to deteriorating or worn seals and gaskets. For best results, add one bottle (375ml) through transmission filling point. One 375ml bottle treats up to 10 litres of transmission fluid.
Auto trans stop leak has been specifically formulated to control leaks in automatic transmission systems due to deteriorating or worn seals and gaskets. For best results, add one bottle (375ml) through transmission filling point. One 375ml bottle treats up to 10 litres of transmission fluid.
in 9 offers
Penrite Auto Trans Stop Leak 375ml - ADTSL375
Auto trans stop leak has been specifically formulated to control leaks in automatic transmission systems due to deteriorating or worn seals and gaskets. For best results, add one bottle (375ml) through transmission filling point. One 375ml bottle treats up to 10 litres of transmission fluid.
Auto trans stop leak has been specifically formulated to control leaks in automatic transmission systems due to deteriorating or worn seals and gaskets. For best results, add one bottle (375ml) through transmission filling point. One 375ml bottle treats up to 10 litres of transmission fluid.
The lowest price for Penrite Auto Trans Stop Leak 375ml - ADTSL375 right now is $11.00 at Carthy's Car Care, compared across 9 retailers.
The all-time low was $8.80 on 26 Mar 2024 — today's price is 25% above the lowest ever. It has been notably cheaper before — worth setting a price alert.
Prices last updated 1 Oct 2026.
Last updated at 01/10/2026 18:31:00
Penrite Auto Trans Stop Leak
Delivery between 7–13 Oct $9.70
ADTSL375 Filter by Filtersplus
Penrite Auto Transmission Stop Leak Additive, 375 ml, ADTSL375
Auto Trans Stop Leak 375mL - Penrite
Delivery between 8–12 Oct $14.95
Penrite Auto Automatic Transmission Gearbox Stop Leak 375ml ADTSL375 Treats 10L
Penrite Auto Stop Leak 375ml for conventional automatic gearbox ADTSL375
Free delivery
Penrite Auto Stop Leak 375ml for conventional automatic gearbox ADTSL375
Free delivery
Penrite Auto Trans Stop Leak, revitalises Automatic Gearbox worn seals
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Penrite Auto Trans Stop Leak, revitalises Automatic Gearbox worn seals, 375ml
Delivery between 9–12 Oct $29
originally posted on autobarn.com.au
My transmission has constantly seeped even after changing the gasket. This seems to have stopped it completely.
originally posted on repco.com.au
Worked Great after a 100 klm drive to seal up my leak. did not use this as a permanent fix , but too stop the leak till transmission service.
| Density at 15°C, kg/L | 0.888 |
| Viscosity, Kinematic, cSt at 40 C | 130 |
| Viscosity, Kinematic, cSt at 100 C | 15.0 |
| Viscosity Index | 118 |
| Phosphorus, Mass % | 0.032 |
Penrite Auto Trans Stop Leak
Delivery between 7–13 Oct $9.70
ADTSL375 Filter by Filtersplus
Penrite Auto Transmission Stop Leak Additive, 375 ml, ADTSL375
Auto Trans Stop Leak 375mL - Penrite
Delivery between 8–12 Oct $14.95
Penrite Auto Automatic Transmission Gearbox Stop Leak 375ml ADTSL375 Treats 10L
My transmission has constantly seeped even after changing the gasket. This seems to have stopped it completely.
Worked Great after a 100 klm drive to seal up my leak. did not use this as a permanent fix , but too stop the leak till transmission service.
| Density at 15°C, kg/L | 0.888 |
| Viscosity, Kinematic, cSt at 40 C | 130 |
| Viscosity, Kinematic, cSt at 100 C | 15.0 |
| Viscosity Index | 118 |
| Phosphorus, Mass % | 0.032 |
