Full synthetic, heavy-duty automatic transmission fluid for on-highway automatic transmissions operating under serve conditions.

SynTuff® HD Full Synthetic ATF is designed to provide oxidative stability, anti-wear performance, extended anti-shudder durability and clutch friction durability for commercial applications where severe-duty or heavy-duty fluids are specified.

SynTuff® HD Full Synthetic ATF is formulated with a combination of select synthetic base fluids and proprietary additive technology. This unique blend provides exceptional wear protection on gears, bearings and clutches—even under severe duty conditions.

It offers strong deposit control, so transmissions stay clean from sludge deposits and fluid thickening.

SynTuff® HD Full Synthetic ATF provides the proper frictional properties to allow for smooth shifting performance and high torque capacity to avoid clutch slippage and wear. 

Performance Benefits

• Allows for smoother, quicker shifting in all operating conditions.
• Extended component life throughout the transmission.
• Reduces operating temperatures for longer oil life.
• Excellent anti-foam and filterability characteristics to ensure efficient and effective lubrication and hydraulic control system performance.
• Protects critical components during low-temperature start-up and operation.