Purpose and Specifications

LIQUI MOLY 21780 Top Tec ATF 1800 is a fully synthetic automatic transmission fluid designed for modern multi-speed transmissions with 6 or more gears. This premium fluid delivers smooth shifting, ultimate protection against wear, and excellent corrosion resistance, keeping your transmission running reliably in all conditions.

Packaged in a 100 ml bottle, it's perfect for precise top-ups or service fills. It maintains ideal thickness from -40°C for cold starts to over 150°C under heavy loads, ensuring consistent performance. Compatible with specs like Dexron VI, Ford Mercon LV, VW G 055 005, and many more from BMW, Honda, Toyota, and Hyundai.

• Smooth, precise gear shifts every time you drive
• Longer transmission life with superior anti-wear additives
• Stays stable in extreme hot or cold weather
• Prevents foaming and oxidation for cleaner operation

When to Use / Replace?

Use LIQUI MOLY 21780 for automatic transmissions, hybrid transaxles, and certain electric drive differentials requiring low-viscosity ATF. Replace every 60,000-100,000 km or 4-5 years, or sooner if you notice rough shifting, slipping, or unusual noises. Shelf life is 5 years unopened when stored cool and dry.

Ideal for daily drivers, towing, or high-mileage vehicles to extend service intervals and avoid costly repairs.

Frequently Asked Questions

Can I mix this with my current ATF?
Best results come from using it undiluted, but it's safe for top-ups with compatible fluids. For full service, drain and refill completely.

What vehicles fit this fluid?
Perfect for VW/Audi, BMW, Honda, Toyota, Hyundai, Ford, and more matching Dexron VI or similar specs. Always check your owner's manual.

How much for a full transmission change?
Typically 4-8 liters depending on your vehicle; this 100 ml bottle is great for maintenance top-ups between services.