Skip to main content
Shop AMSOIL
  • What is Transmission Fluid?
    NewsHow To
    DieselAsk AMSOILCars & Trucks

    What is Transmission Fluid?

    Transmission fluid is a lubricant formulated to protect your vehicle’s transmission gears and clutch packs while enabling smooth, crisp shifts.

    • What Does Oil Viscosity Mean

    Oil viscosity is the measure of its resistance to flow. How quickly or slowly motor oil flows affects how well it protects your engine.

    Learn More

    Get More Great Content Delivered to Your Inbox

    Sign up for bi-weekly updates.

    *Indicates a required field.