Schaeffer 668-012 SynTuff HD Synthetic ATF | 12-QTS

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Schaeffer's 668 SynTuff™ HD Full Synthetic ATF (12-Quarts) is a heavy-duty, automatic transmission fluid that is formulated for on highway automatic transmissions operated under severe operating conditions.

SynTuff™ HD Full Synthetic ATF is formulated with a combination of select synthetic base fluids and proprietary additive technology to provide the following benefits:

• Long-term and stable frictional properties provide anti-shudder protection, reduced noise vibration, smooth shifting performance, and high torque capacity.     
• Extended service life with extended drain capabilities.
• Thermal and oxidative stability to prevent the formation of sludge deposits and fluid thickening. 
• Rust and corrosion protection.
• Shear stability that leads to viscosity retention.
• Wear protection that helps reduce wear on the gears, bearings, and clutches. 
• Operating temperature reduction that allows for longer oil and component life.

SynTuff™ HD Full Synthetic ATF is recommended for use in the following applications: Suitable for use in Allison transmissions that specify automatic transmission fluids (after warranty), GM Dexron®  II-D, III-G, III-H, Ford Mercon® and Mercon® V, Volvo 97340/97341, JASO 1-A, MAN 339 Type V1, V2, Voith Transmissions H55.6335.xx and H55.6336,  Mercedes Benz 236.92, Caterpillar AT-1.  

Always consult the owner’s manual and the OEM’s recommendations for the correct fluid recommendations.

Complete application information available in technical data download!

Do you want to see the Index to Gear Lubes and Transmission Fluids? READ THIS!

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rev 6.18.25