AMSOIL Signature Series ULV 100% Synthetic Automatic Transmission Fluid

AMSOIL Signature Series ULV (Ultra Low Viscosity) 100% Synthetic ATF withstands extreme heat and pressure to resist shear, while delivering a boost of antioxidants to defend against sludge and varnish deposits.

Formulated with friction modifiers, AMSOIL Signature Series ULV 100% Synthetic ATF promotes smooth, reliable shifting and helps extend equipment life. It remains fluid in sub-zero temperatures and provides reserve protection during heavy use.

5.0
star rating from
698
total reviews

This product is available in:

Individual Quart Easy-Pack
Case of 12 Quart Easy-Packs
Individual Gallon Jugs
Cases of 4 Gallon Jugs
Buy Now
Product Code:

AMSOIL Signature Series ULV 100% Synthetic Automatic Transmission Fluid Review by Dave Mann

AMSOIL Signature Series ULV 100% Synthetic Automatic Transmission Fluid Description

AMSOIL Signature Series ULV (Ultra Low Viscosity) 100% Synthetic ATF withstands extreme heat and pressure to resist shear, while delivering a boost of antioxidants to defend against sludge and varnish deposits.

Formulated with friction modifiers, AMSOIL Signature Series ULV 100% Synthetic ATF promotes smooth, reliable shifting and helps extend equipment life. It remains fluid in sub-zero temperatures and provides reserve protection during heavy use.

AMSOIL Signature Series Synthetic ULV Automatic Transmission Fluid

Transmissions in commercial vehicles, SUVs, trucks and vans –particularly those used for hauling or towing – are subjected to severe service operation and increased heat. Elevated temperatures cause fluids to break down, allowing damaging metal-to-metal contact and the formation of sludge and deposits. The problem is worse in modern transmissions with more gears, clutch packs and narrow oil passages that require clean, high-quality fluid to achieve maximum performance and life.

AMSOIL Signature Series Synthetic Automatic Transmission Fluid is specifically formulated to withstand the rigors of heavy towing, elevated temperatures and challenging terrain. It remains fluid in sub-zero temperatures and provides reserve protection during heavy use and abuse.

Proven in 180,000-mile, Severe-Service Taxi Fleet Field Trial

To demonstrate its effectiveness in severe service, Signature Series Multi-Vehicle Synthetic ATF was installed in Las Vegas taxi cabs. The vehicles routinely encountered demanding stop-and-go driving loaded with passengers and cargo, while the desert environment presented extremely hot ambient temperatures, placing enormous strain on the fluid.

Following 180,000 miles, a transmission was selected for analysis. The Aluminum Beaker Oxidation Test (ABOT) is an industry standardized test used to determine a transmission fluid’s oxidation resistance, which is a good indicator of its service life. Testing by an independent, third-party lab revealed that after 180,000 miles in severe service, Signature Series Multi-Vehicle Synthetic ATF resisted oxidation longer than required for new fluid to meet the Chrysler ATF+4 specification (see graph). Internal components, including the valve body and clutch plates (pictured),were virtually free of damaging sludge, deposits and wear, confirming the lubricant’s high level of protection for severe-service applications.

Reserve Protection Against Heat

After 180,000 Miles ABOT Test Performed by Independent Lab Based on Total Acid Number (TAN)

Aluminum Beaker Oxidation Test (ABOT) Results

Inside the transmission after the 180,000 severe service mile test in a Las Vegas taxi cab. The transmission’s valve body is clean and virtually sludge-free.

The clutch plates demonstrated only trace discoloration and earned a rating of “good,” the highest possible, for deterioration/wear.

Protects Against Thermal Breakdown

Signature Series Synthetic ATF is formulated with high concentrations of antioxidants, making it naturally heat resistant. It provides outstanding protection against sludge and varnish deposits that clog narrow oil passages and contribute to clutch glazing. After 180,000 miles in severe service, fluid analysis revealed Signature Series Multi-Vehicle Synthetic ATF contained 83% of its original oxidation inhibitors, proving its long-lasting resistance to thermal breakdown.

Outstanding Wear Protection

Varying speeds and loads causes torque multiplication and extreme stress on gears and bearings. AMSOIL formulated Signature Series Synthetic ATF with high film strength and premium anti-wear/extreme-pressure additives to help prevent wear during severe service. In the industry-standard FZG Gear Wear Test, Signature Series Multi-Vehicle Synthetic ATF that had been used for 180,000 severe-service miles achieved a “Pass” at stage 12 – the highest stage. The results exceeded the Ford MERCON V and Chrysler ATF+4 specifications for new fluid, demonstrating the lubricant’s long-lasting wear protection.

Cold-Temperature Fluidity

Cold, thick automatic transmission fluid lengthens shift times and reduces fuel economy. Signature Series Synthetic ATF is wax-free and delivers extraordinary cold-flow properties. It helps improve shift response, energy efficiency and warm-up times.

Friction Durability

Today’s transmissions are smaller and must withstand higher horsepower and torque while delivering smoother shifts, all with longer fluid life recommendations. AMSOIL Signature Series Synthetic ATF is formulated with friction modifier additives that deliver outstanding clutch-holding capacity (static friction), torque-transfer ability(dynamic friction) and anti-shudder properties (slipping torque converter clutches). Analysis reveals that after 180,000 miles in severe service, Signature Series Multi-Vehicle Synthetic ATF provides nearly identical friction properties as new fluid for smooth, reliable shifts.

TYPICAL TECHNICAL PROPERTIES

AMSOIL Signature Series ULV (Ultra Low Viscosity) Synthetic Automatic Transmission Fluid (ULV)

Kinematic Viscosity @ 100°C, cSt (ASTM D445) 4.5
Kinematic Viscosity @ 40°C, cSt (ASTM D445) 20.5
Viscosity Index (ASTM D2270) 134
Pour Point, °C (°F) (ASTM D97) -62(-80)
Flash Point, °C (°F) (ASTM D92) 220(428)
Four-Ball Wear Test (ASTM D4172 @ 40 kg, 75˚C, 1200 rpm, 1hr), Scar, mm 0.39
Brookfield Viscosity @ -40°C, cP (ASTM D2983) 4050

PRODUCT APPLICATIONS

Use AMSOIL Signature Series Ultra-Low Viscosity ATF in transmissions and other applications that require any of the following specifications:

  • Ford MERCON ULV
  • GM DEXRON ULV

SERVICE LIFE

Normal Service: Follow the vehicle manufacturer’s normal-service drain interval.

Severe Service: Double the vehicle manufacturer’s severe-service drain interval in passenger cars and light trucks. Change at the vehicle manufacturer’s recommended drain interval outside U.S. and Canada.

PRODUCT WARRANTY

All AMSOIL Signature Series products are backed by a Limited Liability Warranty. For complete information visit AMSOIL.com/warranty.aspx.

HEALTH & SAFETY

This product is not expected to cause health concerns when used for the intended application and according to the recommendations in the Safety Data Sheet (SDS). An SDS is available at AMSOIL.com or upon request at (715) 392-7101. Keep Out of Reach of Children. Don’t pollute. Return used oil to collection centers.

Reviews

5

star rating

Night and day change in performance.

The way this oil changed how my transmission shifted and performed is unreal. Extremely highly recommended.

5

star rating

Transmission Pan/Fluid change 2021 Ford Ranger

Replaced plastic pan with PPE cast aluminium pan. New Amsoil ATF fluid. Transmission shifts smoother and noticed slight increase in MPG as I also changed the transaxle and differential fluids with Amsoil products. My family started using Amsoil back in 1974 in all our vehicles through the years with great results.

5

star rating

Excellent transmission fluid.

I recently bought a 2021 Lexus IS300 AWD, and changed out all of the fluids to Amsoil. So far the transmission is shifting smoother with the new Amsoil fluid that I changed in July. Since then I've put about 4,000 miles on the car and it's still shifting incredibly smooth. I would definitely recommend Amsoil ATF to anyone who cares about their vehicles.

Buy Now

SAVE 25% + FREE Shipping!

Sign up today for 25% off all AMSOIL products and get FREE shipping on orders of $100 or more as a preferred customer.