TRIAX ULV ATF Full Synthetic Ultra Low Viscosity ATF - Smooth Shifting

In this review of the TRIAX ULV ATF, the bottom line is simple: this 100% synthetic, ultra low viscosity automatic transmission fluid is aimed at owners of modern 8- and 10-speed cars, trucks, and SUVs who need reliable, smooth shifting under load. The reviewer found its primary advantage is frictional optimization technology that noticeably improves shift quality and eliminates shudder or slipping during towing or hard acceleration, making it a strong option for drivers seeking OEM-compatible performance and extended drain intervals.

Key Features

• Frictional Optimization Technology: Provides ultra-smooth shifting and prevents shudder or gear sticking even when towing or hauling heavy loads.
• Extended Drain Life: Supports long drain intervals of up to 150,000 miles for standard driving and 70,000 miles for heavy-duty use, reducing maintenance frequency.
• Cold Weather Ready: Engineered with a pour point down to -50F to preserve fuel economy and shifting performance in extreme low temperatures.
• OEM Replacement Compatibility: Formulated as a 100% synthetic replacement compatible with Mercon ULV, Dexron ULV, WSS-M2C949-A and MB 2236.17 specs for broad application.
• Advanced Vehicle Compatibility: Suitable for many GM 10L80/10L90 transmissions and select Escalade, Silverado, Tahoe, Sierra, Yukon, CT6 and Camaro models requiring ULV fluids.

Who It's For

TRIAX ULV ATF is best for owners of modern 8- and 10-speed transmissions who want factory-level compatibility and reduced service intervals, including drivers who tow or carry heavy loads and need stable shift feel under strain. It also suits vehicles that operate in very cold climates where low pour point and consistent viscosity matter.

Those running older, non-ULV transmissions or vehicles requiring a different fluid specification should look elsewhere, as this product specifically targets ULV modern transmission families and OEM ULV replacement requirements.

Pros & Cons

Pros

• Improves shift quality and reduces shudder, matching customer reports of smoother gear changes.
• Long drain intervals cut down on maintenance and service costs for many drivers.
• Performs in extreme cold with a very low pour point, aiding start-up economy and response.
• Formulated to meet key OEM ULV specifications for wide compatibility across recent GM and European models.

Cons

• Targeted at ULV 8- and 10-speed transmissions, so it is not suitable for older or non-ULV transmissions.
• Five-gallon size may be more than needed for single smaller-service jobs, limiting appeal for DIYers wanting smaller quantities.

Specifications

Brand	Triax
Type	Full synthetic ultra low viscosity ATF
Compatibility	Mercon ULV, Dexron ULV, WSS-M2C949-A, MB 2236.17
Applications	GM 10L80/10L90 and selected Escalade, Silverado, Tahoe, Sierra, Yukon, CT6, Camaro models
Drain Interval	Up to 150,000 miles normal / 70,000 miles heavy-duty
Cold Pour Point	Down to -50F
Container Size	5 gallon

Our Verdict

TRIAX ULV ATF is a well-engineered synthetic fluid that brings OEM-level ULV compatibility and long drain capability to modern 8- and 10-speed transmissions, making it a practical value for owners who tow or drive in cold climates. Its frictional optimization delivers perceptible shift improvements and long-term stability, so buyers with the correct transmission spec will find it a cost-effective, reliable choice.

Frequently Asked Questions

Is this ATF compatible with my 10-speed GM transmission?
It is formulated for compatibility with GM 10L80/10L90 applications and many listed GM vehicles; always confirm your vehicle requires an ULV spec before use.

How long can I wait between fluid changes?
Manufacturer guidance here indicates up to 150,000 miles for standard driving and about 70,000 miles for heavy-duty use, subject to vehicle maker recommendations.

Will it help shifting in cold climates?
Yes, the fluid is engineered with a pour point down to -50F to maintain fuel economy and shift performance in very low temperatures.