Pro-Line ATF Additive, Liqui Moly 21976

The Liqui Moly 21976 Pro-Line ATF Additive is a high-performance solution designed to maintain and protect rubber and plastic seals in automatic transmissions. This advanced formula helps prevent and eliminate leaks caused by hardened, worn, or brittle seals, ensuring optimal transmission performance and longevity.

Suitable for use with all common automatic transmission fluids (ATF), this additive restores seal flexibility and improves sealing efficiency. Regular use during transmission fluid changes helps extend the service life of gearbox components and reduces the risk of costly repairs.

Easy to apply, the additive can be added directly through the dipstick tube or via professional transmission service equipment, making it ideal for both professional workshops and DIY maintenance.

Key Features

• Maintains and revitalizes rubber and plastic seals
• Prevents and stops leaks in automatic transmissions
• Restores flexibility of hardened seals
• Extends transmission and seal lifespan
• Compatible with all standard ATF fluids
• Easy application via dipstick or service equipment
• Ideal for preventive maintenance

Application

• Add directly to transmission fluid via dipstick tube or service machine
• 250 ml treats 3.5 to 7.5 liters of ATF

Benefits

• Reduces transmission fluid leaks
• Improves sealing performance
• Helps avoid expensive repairs
• Supports smooth transmission operation