What Are the Hazards of Lugging the Engine?
3 Answers
Lugging the engine refers to failing to downshift when necessary, resulting in a mismatch between speed and gear. This can cause severe overloading of the engine, leading to violent shaking of the engine, transmission components, or even the entire vehicle, accompanied by abnormal noises. In diesel engines, black smoke may emit from the exhaust pipe, causing significant damage and impact to the vehicle and engine. From the engine's load characteristics, it is known that: When the throttle opening is small, the engine load rate is low, and fuel consumption is high. Under the condition of lugging the engine: If the vehicle frequently operates in this state, transmission components such as the clutch, gearbox, drive shaft, and differential may suffer premature wear and a shortened lifespan due to continuous impact. Additionally, the noise generated during lugging can be unbearable for passengers. Lugging the engine: When encountering an emergency requiring immediate acceleration to overcome an obstacle, pressing the accelerator may not result in an immediate speed increase, potentially leading to a passive situation.
I've been driving for over a decade, and lugging the engine can be quite harmful. Firstly, it damages the engine. When driving in a high gear with low RPM and heavy load, the engine is prone to overheating or excessive wear on components, such as accelerated piston ring wear. Over time, this can lead to increased engine noise or even stalling, which is both expensive and troublesome to repair. Secondly, it affects safety. Lugging the engine results in poor acceleration, making it sluggish when overtaking or climbing hills, which can easily lead to rear-end collisions. Especially on rainy days when the road is slippery, losing control of the steering is extremely dangerous. Thirdly, it increases fuel consumption. The engine struggles to operate, consuming more fuel, and over long distances, this can add up to significant extra costs. I recommend developing good shifting habits, listening to the engine sound or checking the tachometer to determine the optimal gear. This way, the car runs smoother, lasts longer, and saves both hassle and money.
I just got my driver's license a year ago, and driving in the wrong gear has cost me dearly; mainly, it's very fuel-consuming. When the engine struggles at low RPMs in a high gear, gasoline doesn't burn completely, leading to fuel consumption that's 10-20% higher than normal. Turning on the AC in summer burns fuel even faster, and watching my wallet shrink is heartbreaking. Additionally, the car shakes violently, making it feel like riding a rocking horse during drives, leaving me with backaches and discomfort after long trips. Prolonged driving in the wrong gear can also lead to excessive emissions, polluting the environment, and there's a risk of fines for violating traffic rules. Now, I've learned to speed up and shift gears on gentle slopes or downshift promptly on steep ones, which not only saves fuel but also makes the car respond more flexibly.
