Best Cooler Transmission Fluids in 2026

CUTTING EDGE TECHNOLOGY - Shockproof technology designed to make a big impact against big impacts

QUIET SMOOTH SHIFTING - V-Twin Transmission oil dampens transmission noise, reducing the notorious shifting clunk found in these gearboxes

IMPROVES PERFORMANCE - Transmission fluid that dramatically reduces temperature, providing thicker oil films between gear teeth and resists throw-off

Our most versatile ATF, for use in automatic, manual transmissions and power steering

Popular applications: Toyota Type T-III and T-IV, Honda ATF-Z1, Nissan Matic D, J & K, Diamond SP-II, SP-III, Mazda ATF M-V, most BMW and Audi/VW automatic transmissions

Also used with manual transmissions and transaxles like T-5, T-45, T-56 and late-model BMW, provides a GL-4 level of gear protection

High Film Strength Helps to Dramatically Reduce Heat and Wear

Automatic Transmissions Generate a Great Deal of Heat and Depend on Transmission Fluid for Cooling and Protection

Significantly Reduces Heat to Extend the Life of Your Transmission

For best performance, follow the manufacturer's recommendations in your vehicle owner’s manual.

Outstanding viscosity/temperature characteristics, optimal protection against foaming

Extremely good low temperature properties

BG ATC Plus enhances properties of both new and used automatic transmission fluid.

It improves fluid oxidation stability, thereby prolonging fluid life and the life of the transmission.

It prevents leaks by conditioning hardened seals-keeping them soft and pliable.

Fits all CVT transmissions from Japanese, German, and US vehicles. Outperforms most OEM fluids for both CHAIN and BELT CVT transmissions. TRIAX SYNTRON CVT SYNTHETIC is also recommended for and compatible with certain transmissions manufactured by Mercedes, Suzuki, Hyundai, Kia, and others.

10-15 degrees lower transmission operational temperature in most cases. Excellent hot/cold temperature performance. It helps to control transmission shudder and provides excellent vehicle driveability. It provides a wide range of seal compatibility, not harmful to synthetic rubber seals.

It helps to control transmission shudder and provides excellent vehicle driveability. It provides a wide range of seal compatibility and is not harmful to synthetic rubber seals. Excellent lubricating characteristics for quiet operation and smooth shifting in approved transmissions. Superb protection against rusting and corrosion. Superb foaming resistance – contains high-quality anti-foaming agents.

Provides outstanding resistance to oxidation, sludge, and varnish deposits at extreme temperatures

Reduces wear or scoring of gears, clutch bands and discs

Provides excellent friction control for smooth shifting and a cooler running transmission

Highest thermal stability

Excellent corrosion protection

Excellent viscosity/temperature properties

ENABLES firmer shifting for better gear shift operation

COOLER RUNNING when used with up to 30% better heat dissipation than standard fluid

NOT RECOMMENDED FOR factory set computer-controlled transmission unless reset professionally

Product Type:Hardware Tubing

Item Package Dimension:187.96 cm L X 38.1 cm W X22.86 cm H

Item Package Weight:0.549 lbs

ENABLES firmer shifting for better gear shift operation

COOLER RUNNING when used with up to 30% better heat dissipation than standard fluid

NOT RECOMMENDED FOR factory set computer-controlled transmission unless reset professionally

Helps reduce extreme heat

Promotes non-slip shifts & increases response time

Improves horsepower up to 3% over the leading national brand

Helps maintain proper transmission operating temperatures

GM-recommended replacement part for your GM vehicle’s original factory component

Offering the quality, reliability, and durability of GM OE

Tube Bundle, Overall Length: 9 inch or 228.6mm, 12 inch

Oil: 6 GPM MAX

Water: 25 GPM MAX

Product_Name: Transmission Oil Line

Fitment: Please check Amazon Fitment Filter and Description to see if this item will work on your vehicle before purchase!

Note: Set Components - (2) Transmission Oil Line

WIDEST SPECIFICATION RANGE - Compatible with FORD XL-12 Case Fluid, BMW LT 71141, Allison TES 295, TES 389, MERCON V, Dexron VI, JEEP ATF 3, ATF 4, HONDA DW1, KIA SP-III/ IV, Mazda ATF MIII / MV, Nissan Matic D/J/K/S/W - See complete spec pictures of spec sheet

FILL FOR LIFE in passenger cars, SUVs and light duty trucks; High shear and thermal stability make this fluid extremely long lasting; 300,000+ mile drain on passenger cars and SUVs; 100,000 miles for heavy duty pickup trucks

HEAVY DUTY DURABILITY – High load carrying capacity, high film strength, and transmission protection make this product ideal for heavy duty applications such as diesel trucks, towing, hauling, and general high torque applications