AMSOIL Signature Series Fuel-Efficient 100% Synthetic Automatic Transmission Fluid is a premium low-viscosity ATF formulated for modern automatic transmissions that require reduced-viscosity fluids and precisely controlled friction characteristics. It is recommended by AMSOIL for a wide range of North American, European and Asian transmission-fluid specifications, making it particularly useful for workshops, performance specialists and vehicle owners looking for a premium synthetic alternative to many manufacturer-branded fluids.

Applications include many modern transmissions used by BMW, Ford, General Motors, Jaguar, Land Rover, Toyota, Lexus and other manufacturers, subject to the fluid specification required by the particular vehicle. Importantly for the Australian market, AMSOIL recommends Fuel-Efficient ATF for applications requiring ZF LifeguardFluid 8 (S671 090 312), the reference fluid used in many ZF 8HP eight-speed automatic transmissions.

ZF 8HP transmissions are widely found in European, American and Australian-market performance and luxury vehicles and have also become increasingly popular for transmission conversions and high-performance builds. For more information on identifying, servicing and selecting fluid for these transmissions, see our ZF 8HP Transmission Fluid Guide.

Designed for Modern Fuel-Efficient Transmissions

Modern automatic transmissions use additional gear ratios, compact hydraulic circuits and sophisticated electronically controlled clutch systems to improve fuel economy and shift quality. These designs can require lower-viscosity transmission fluids with carefully engineered friction characteristics.

AMSOIL Signature Series Fuel-Efficient ATF is formulated to provide consistent friction performance, excellent wear protection and resistance to oxidation while maintaining the low-temperature fluidity required by modern transmission designs. Its 100% synthetic formulation helps maintain reliable shift performance across a broad range of operating temperatures.

Protects Against Heat and Oxidation

Automatic transmission fluid is exposed to considerable thermal stress, particularly in vehicles used for towing, performance driving, stop-start operation and other severe-service conditions. Elevated temperatures accelerate fluid oxidation and can contribute to varnish, sludge and deposits within narrow hydraulic passages and transmission components.

Signature Series Fuel-Efficient ATF is formulated with robust oxidation resistance to help maintain fluid performance and cleanliness under demanding operating conditions.

Outstanding Wear Protection

Automatic transmissions place significant loads on gears, bearings, bushings and other lubricated components. AMSOIL Signature Series Fuel-Efficient ATF provides strong fluid-film and anti-wear protection to help minimise metal-to-metal contact and support long transmission life.

Consistent Friction Performance

Automatic transmission fluid is not simply a lubricant. Its friction characteristics play an important role in clutch engagement, torque transfer and shift quality. Signature Series Fuel-Efficient ATF is formulated to maintain consistent friction performance, helping provide smooth shifts and resist shudder throughout its service life.

Excellent Cold-Temperature Performance

Low temperatures increase fluid viscosity and can slow hydraulic response during cold starts. The synthetic formulation of Signature Series Fuel-Efficient ATF provides excellent low-temperature fluidity, helping the transmission respond quickly during start-up while supporting efficient operation as the transmission reaches normal operating temperature.