Coasting in neutral refers to putting the transmission into neutral state, allowing the vehicle to coast solely based on inertia without any driving force input. Some people believe this can reduce fuel consumption, but in reality, it does not. Even when coasting in neutral, the engine still idles, resulting in idle fuel consumption. Therefore, coasting in neutral does not truly achieve fuel efficiency.
Moreover, choosing to coast in neutral may introduce certain friction and wear to the transmission, negatively affecting its lifespan. Especially on downhill slopes, coasting in neutral is more dangerous as the vehicle loses engine braking power, causing the speed to gradually increase.
When braking is needed, due to the lack of engine assistance, it takes longer to depress the brake pedal. This may lead to severe overheating of the braking system and potential brake failure.
In contrast, selecting the appropriate gear for driving is crucial for vehicle performance and fuel economy. Automatic transmission vehicles offer multiple gear options, and adjusting gears based on specific traffic conditions is a wiser choice. Using different gears helps keep the engine within the appropriate rpm range to provide optimal power output and fuel economy.
