Purpose and Specifications

SWAG 33 10 6391 is premium axle gear oil designed for the rear axle and manual transmissions in Audi, BMW, Fiat, VW, Seat, and Skoda vehicles. This 1-liter bottle meets API GL-4 standards, plus BMW MTF LT-3 and Fiat 9.55550-MX3 specs, ensuring smooth gear shifts and strong protection for high-performance models like A5, A6, and Allroad.

It flows easily in cold starts down to -40°C and stays thick up to 150°C operating temps, reducing wear and improving fuel efficiency. Perfect for quattro systems and heavy-duty driving.

When to Use / Replace?

• Replace every 60,000-100,000 km or 4-5 years, whichever comes first, to prevent gear grinding and extend transmission life.
• Use during routine service, after heavy towing, or if shifting feels rough.
• Shelf life: 5 years unopened in cool, dry storage.

FAQ

Q: Is this oil safe for my Audi A6 quattro?
A: Yes, it matches exact specs for A6 C6 models, protecting rear axles under high loads.

Q: How much for a full fill?
A: Most rear axles need 0.8-1.2 liters; this 1L bottle covers it perfectly.

Q: Can I mix with other GL-4 oils?
A: Best to drain fully and refill with SWAG for peak performance and warranty compliance.