What does AM mean in automatic transmission and what does it represent?

[DelCarson]

AM stands for automatic transmission. Below is relevant information about automatic transmission: 1. Principle of automatic transmission: The engine's power is transmitted through the gearbox, which is also a key factor affecting fuel consumption. Generally, automatic transmissions consume over 10% more fuel than manual transmissions. Whether manual or automatic, the more gears a transmission has, the more fuel-efficient it is. 2. Driving techniques: For manual transmission vehicles, higher RPMs should be used when shifting up. Engines are designed to operate at higher RPMs, with parameters such as dynamic balance and rotational inertia of various components designed based on high RPM conditions. If the engine operates for extended periods outside its normal working range, internal component load and wear naturally increase, leading to frequent vibrations and knocking, which can affect longevity. Choosing 3000 RPM as the shift-up point ensures that after shifting, the engine runs at around 2300 RPM, keeping it within a healthy operating range.