Triax DTF-1 Full Synthetic Transfer Case Fluid 1 Quart — Lifetime Fill, -60°F Cold-Start Protection

Triax DTF-1 is a full synthetic transfer case fluid engineered for modern AWD and 4x4 transfer units, offering lifetime-fill performance and reliable operation in temperatures down to -60°F.

Designed to meet the demands of contemporary all-wheel-drive systems, Triax DTF-1 blends friction modifiers, seal-friendly base stocks, and advanced additives to deliver smooth engagement, sensor compatibility, and durability across a broad range of OEM transfer cases. It’s formulated for seamless function in high-torque environments and for use where manufacturers specify a synthetic or long-life fluid for sealed transfer cases.

Which vehicles and transfer cases is Triax DTF-1 compatible with?

DTF-1 covers many European, Asian, and American all-wheel-drive units, including popular marques that require specific friction and seal compatibility. Always check your vehicle’s service manual or the product application list for exact model fitment.

• Porsche Cayenne and Macan transfer cases
• BMW xDrive systems and Audi/Volkswagen Quattro units
• Range Rover, Mercedes-Benz Torque on Demand (GLE/G-Class), Nissan AWD, Ford and many others
• Suitable for sealed transfer cases qualifying for lifetime-fill service intervals where permitted

How does this fluid perform in extreme cold and during heavy-load driving?

Formulated for true all-season operation, DTF-1 retains low-temperature flow and controlled friction behavior at very low temperatures, enabling consistent engagement and reduced wear on clutch packs and gear surfaces. Under heavy torque or sustained high-speed conditions, the fluid’s additives maintain stability to protect internal components and prevent foaming or shear-related thinning.

• Flows and engages reliably down to -60°F for cold starts
• Friction-modified for predictable clutch-to-gear transitions
• High thermal and shear stability for sustained load conditions
• Anti-foaming properties for consistent hydraulic behavior

Is Triax DTF-1 safe for seals, sensors, and modern materials?

DTF-1 is formulated to be compatible with elastomers, soft metals, and electronic sensors commonly used in today’s transfer cases. The additive package minimizes swelling or hardening of seals and prevents signal interference with speed and position sensors, reducing the risk of leaks or warning lights related to fluid incompatibility.

• Seal-safe base stocks to protect rubber and polymer components
• Non-corrosive to aluminum, copper, and steel internals
• Stable additives that do not foul electronic sensors
• Designed for OEM-style materials used in modern AWD systems

What service practices and installation notes should be followed?

For best results, drain the old fluid where possible and follow the vehicle maker’s fill and bleed procedures. Use the correct capacity and torque settings for drain/fill plugs, and replace any damaged seals or gaskets during service to maintain a sealed lifetime-fill application where intended.

• Follow manufacturer-specified fill level and service procedures
• Replace crush washers, seals, or gaskets if worn or leaking
• Use in sealed transfer cases labeled for lifetime fill when accepted
• Keep fluid contamination-free; close container after use

Who is this for? Triax DTF-1 suits technicians, fleet managers, and enthusiasts who maintain modern AWD and full-time 4x4 vehicles requiring a high-performance synthetic transfer case fluid. If you operate vehicles from Porsche, BMW, Audi/Volkswagen, Range Rover, Mercedes-Benz, Nissan, Ford or other manufacturers that specify synthetic or lifetime-fill transfer case fluids, DTF-1 offers broad compatibility, strong low-temperature performance, and the material compatibility needed for advanced transfer case designs.