Purpose and Specifications

LIQUI MOLY Gear-Oil Additive 1040 is a highly concentrated MoS2 (molybdenum disulfide) formula designed to protect manual transmissions, differentials, axle drives without wet clutch locks, and mechanical steering systems. This 20g tube treats up to 1 liter of gear oil, reducing friction and wear for smoother shifting, quieter operation, and lower running temperatures even under heavy loads or high heat up to 150°C.

• Reduces gear temperatures by minimizing friction peaks, keeping your transmission cooler during towing or hard driving.
• Creates smoother gear tooth surfaces for less noise and vibration over 100,000+ km of service.
• Boosts reliability with outstanding emergency running properties if oil levels drop temporarily.
• Compatible with mineral and synthetic gear oils; mixes automatically when driving.

Shelf life is 4 years unopened when stored in a cool, dry place.

When to Use / Replace?

Add during routine gear oil changes every 60,000 km or 36 months, or anytime you notice noisy shifting, grinding, or high transmission heat. Ideal for high-stress conditions like frequent towing, off-road use, or extreme temperatures from -30°C to 150°C. One tube per oil change; reapply at next service for ongoing protection. Not for motorbikes with wet clutches.

Frequently Asked Questions

Can I use this in any manual transmission?
Yes, for cars and trucks with manual gearboxes, differentials, and steering without wet clutches. Always check your owner's manual.

How much do I add and when?
20g treats 1 liter; squeeze into warm gear oil after drain and refill. Drive normally to mix. Repeat every 60,000 km.

Will it make shifting harder?
No, it improves smooth shifting by reducing friction while maintaining necessary grip for synchros.