Castrol ® TranSynd 668 ® is a premium, full-synthetic automatic transmission fluid specifically formulated for Allison Transmission ® heavy-duty, on-highway automatic transmissions. TranSynd 668 provides oxidative stability, anti-wear

This premium, full-synthetic fluid is Allison TES 668-approved and it builds on the demonstrated performance of the previous Allison TES 295 spec with key differentiators that include improved wear protection, extended anti-shudder durability, and extended clutch-friction durability.

Castrol® TranSynd 668® is a premium, full-synthetic automatic transmission fluid specifically formulated for Allison Transmission® heavy-duty, on-highway automatic transmissions. TranSynd 668 provides oxidative stability, anti-wear performance, and friction durability.

Castrol® TranSynd® 668 can deliver up to 12 times longer drain intervals than conventional and other non-Allison-approved synthetic fluids – making it a true powerhouse when it comes to extending drains.

Castrol TranSynd 668 is a premium, full-synthetic automatic transmission fluid specifically formulated for Allison Transmission® on-highway automatic transmissions. TranSynd 668 provides oxidative stability, anti-wear performance, and friction durability, as well as TES 668™ specification differentiators such as extended anti-shudder ...

Castrol TranSynd 668 is a high-quality, full-synthetic, automatic transmission fluid uniquely formulated and engineered for Allison TES-668 and fully backwards compatible with TES-295 applications.

Protect and extend the service life of your Allison 1000 or 2000 with the Castrol Transynd 668 Full Synthetic Transmission Fluid. Get your Duramax needs at XDP.

Castrol® TranSynd 668® is a premium, full-synthetic automatic transmission fluid specifically formulated for Allison Transmission® heavy-duty, on-highway automatic transmissions. TranSynd 668 provides oxidative stability, anti-wear performance, and friction durability.

Castrol TranSynd 668 is a premium, full-synthetic automatic transmission fluid specifically formulated for Allison Transmission on-highway automatic transmissions. TranSynd 668 provides oxidative stability, anti-wear performance, and friction durability, as well as TES 668 specification differentiators such as extended anti-shudder durability ...