Mobil 1 ATF is a premium synthetic fluid designed to meet the needs of most automatic transmission applications. It has been specifically engineered for use in modern passenger car and light truck transmissions which require a fluid with improved performance properties over conventional petroleum-based fluids. The weight of Mobil 1 ATF is 9.7 pounds per gallon, making it one of the heavier motor oils available on the market today. This density helps provide better protection against wear and tear on transmission components due to its high viscosity index, which allows it to maintain its lubricating characteristics even at higher temperatures than other types of oil can handle. Additionally, Mobil 1 ATF provides superior thermal stability compared to traditional mineral oils found in many cars, enabling drivers to enjoy smoother shifting and longer service intervals between oil changes without compromising performance or reliability.