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 12 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 11 retailers.
The all-time low was $10.79 on 27 Dec 2025 — today's price is 2% above the lowest ever. This is at or near its all-time low — a good time to buy.
Prices last updated 16 Aug 2026.
Last updated at 16/08/2026 15:11:34
Penrite Auto Trans Stop Leak
Delivery between 19–25 Aug $9.70
Penrite Auto Transmission Stop Leak Additive 375ml
14-day returns
Penrite Auto Transmission Stop Leak Additive, 375 ml, ADTSL375
ADTSL375 Filter by Filtersplus
Penrite Auto Trans Stop Leak 375ml ADTSL375
Delivery between 20–28 Aug $9.90
Auto Trans Stop Leak 375mL - Penrite
Delivery $14.95
Penrite Auto Automatic Transmission Gearbox Stop Leak 375ml ADTSL375 Treats 10L
Penrite Auto Stop Leak 375ml For Conventional Automatic Gearbox
Free delivery
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Penrite Auto Transmission Stop Leak Additive 375ml
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Penrite Auto Stop Leak 375ml for conventional automatic gearbox ADTSL375
Free delivery
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 19–25 Aug $9.70
Penrite Auto Transmission Stop Leak Additive 375ml
14-day returns
Penrite Auto Transmission Stop Leak Additive, 375 ml, ADTSL375
ADTSL375 Filter by Filtersplus
Penrite Auto Trans Stop Leak 375ml ADTSL375
Delivery between 20–28 Aug $9.90
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 |
