1 Gallon Transynd TES 668 Trans Fluid For 01-19 GM 6.6L Duramax Allison 1000
1 Gallon Transynd TES 668 Trans Fluid For 01-19 GM 6.6L Duramax Allison 1000
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1 Gallon Transynd TES 668 Trans Fluid For 01-19 GM 6.6L Duramax Allison 1000

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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 and extended clutch friction durability. This fluid features an Allison TES 668 approval. The TES 668 spec is fully backwards compatible for TES 295® applications.

Features:

  • Delivers improved gear protection.
  • Delivers extended anti-shudder durability.
  • Delivers extended clutch-friction durability.
  • Excellent corrosion and foaming resistance.
  • Excellent thermal and oxidative stability that helps to prevent deposits and oil thickening.
  • Excellent transmission cleanliness under all conditions permits extended oil-drain intervals and decreased
    servicing.
  • Excellent temperature reduction through reduced friction leads to longer oil and component life.
  • Outstanding cold-flow properties enable faster oil flow to all critical components, particularly during cold starts.
  • Optimized frictional characteristics gives smoother gear changing at all ambient temperatures and load
    conditions.
  • Excellent shear stability properties help to retain full transmission performance over the entire oil-drain interval