Signature Series Fuel-Efficient Synthetic Automotic Transmission Fluid, 1G

AMSOIL Signature Series Fuel-Efficient Synthetic ATF is engineered for modern, hard-working vehicles operating under severe service conditions. It withstands the rigors of heavy towing, elevated temperatures, and challenging terrain, handling heat so exceptionally well that you can confidently double your vehicle manufacturer’s severe-service drain interval with guaranteed AMSOIL protection.

Key Benefits & Performance Features

• Withstands Extreme Conditions: Built to handle heavy towing, high heat, and challenging driving environments with reserve protection against heavy use and abuse.

• Cold-Weather Performance: Remains fluid in sub-zero temperatures, offering extraordinary cold-flow properties for reliable operation during cold starts.

• Optimized Efficiency: Helps improve shift response, energy efficiency, and warm-up times.

• Protects Against Thermal Breakdown: Formulated with high concentrations of naturally heat-resistant antioxidants to resist varnish, sludge, and oil thickening.

Proven Durability & Test Results

AMSOIL Signature Series Fuel-Efficient ATF is proven to deliver long-term protection under severe demands:

• Performance After 180,000 Severe-Service Miles:

  • The transmission valve body remained clean and virtually sludge-free.

  • Clutch plates showed only trace discoloration and earned a "good" rating (the highest possible) for deterioration and wear.

• Thermal & Oxidation Stability: Maintains high levels of original oxidation inhibitors even after extreme, long-term severe-service operation.