Purpose and Specifications

LIQUI MOLY 4422 is a fully synthetic hypoid gear oil designed for differentials, manual transmissions, and rear axles in high-performance vehicles. This premium 75W-140 oil meets API GL-5 specifications and is approved for use in BMW, Ford, Scania, ZF, and VME transmissions.

This oil protects your transmission by reducing friction between moving parts, absorbing and dissipating heat during operation, and maintaining protective seals to prevent dirt and water contamination. The fully synthetic formula ensures reliable performance across extreme temperature ranges and reduces transmission noise for smoother, quieter operation.

Key Benefits

• Extended oil change intervals – fewer service visits needed
• Superior wear protection – keeps transmission components running longer
• Excellent corrosion resistance – protects against rust and degradation
• High-pressure absorption – handles demanding driving conditions
• Reduced transmission noise – quieter gear engagement

When to Use / Replace?

Use LIQUI MOLY 4422 for scheduled transmission oil changes in vehicles that specify 75W-140 GL-5 gear oil. Check your vehicle's service manual for exact change intervals, which typically range from 40,000 to 80,000 km depending on driving conditions and transmission type. Synthetic oils like this one allow longer intervals between changes compared to mineral oils.

Replace the oil if you notice grinding noises, difficulty shifting, or transmission overheating. This oil operates effectively between -30°C and +150°C, making it suitable for both cold climates and high-performance driving.

Frequently Asked Questions

Q: Can I mix LIQUI MOLY 4422 with other gear oils?
A: Yes, it can be mixed with mineral oil residue that remains in the transmission during an oil change. However, for best results, perform a complete fluid flush before filling with fresh LIQUI MOLY 4422.

Q: How long does this oil last in storage?
A: Fully synthetic oils have excellent aging resistance. Store in a cool, dry place away from direct sunlight. Properly stored, LIQUI MOLY 4422 maintains its quality for several years.

Q: Is this oil suitable for my vehicle?
A: LIQUI MOLY 4422 is approved for BMW rear axles, Ford WSL-M2C 192-A, Scania STO 1:0, VME, and ZF transmissions (TE-ML 05D, 12D, 16G, 21D). Always verify your vehicle's specifications in the owner's manual or contact LIQUI MOLY technical support at (888) 665-9645 to confirm compatibility.