
Keeping the PWR mode on will increase the car's fuel consumption and accelerate engine wear. More details about PWR are as follows: 1. "PWR" in cars actually refers to the "Power Mode," which is usually indicated by a PWR button, mostly found in Japanese cars. In Power Mode, drivers can noticeably feel that the car becomes more powerful. This is mainly because, in PWR mode, the transmission shifts more aggressively. For example, under normal conditions, the transmission might shift at 2000 RPM, but in PWR mode, it may shift at 3000 RPM. The delayed shifting keeps the engine at higher RPMs, providing better power responsiveness. Additionally, the vehicle downshifts more aggressively to maintain high engine RPMs. 2. PWR mode results in higher fuel consumption. If fuel economy is a priority, it is recommended not to use this mode.

Last time I drove my friend's car with the power mode always on, I noticed a significant increase in fuel consumption. In general city commuting, this mode keeps the engine RPM higher. The acceleration is indeed thrilling, but over time, it increases the risk of engine carbon buildup, affects engine lifespan, and puts extra stress on the transmission. I recommend only turning it on during highway driving or overtaking, and keeping it off normally to save on fuel costs. For example, my old car had the power mode on daily for several years, and now during maintenance, the mechanic said the transmission is wearing out a bit faster. Using the eco mode more often actually gives peace of mind. Don’t underestimate daily driving habits—accumulated over time, the repair costs can add up significantly.

As an enthusiast who enjoys occasional high-speed driving, the power mode indeed enhances the driving experience with quicker engine response and smoother overtaking. However, keeping it on all the time regardless of road conditions is counterproductive. In cities with frequent traffic lights, this mode keeps the engine under high load, increasing fuel consumption by about 10% and accelerating the wear of spark plugs and fuel systems. It's best to activate it only on mountain roads or highways, switching to normal mode at other times to balance economy and performance. Otherwise, both your wallet and your car will suffer. Having driven various cars, I've noticed that frequent use of power mode also has a slight impact on battery life.

I usually drive very safely. Keeping the power mode on for extended periods can make the engine too powerful, leading to unstable control on slippery roads or in traffic jams, which increases the risk of skidding. This is especially unsuitable for beginners. The mode is designed for brief performance boosts, and prolonged use will require more frequent braking, wearing out brake pads faster and affecting overall reliability. It's recommended to switch modes reasonably based on specific road conditions, prioritizing safe driving.


