Should You Shift to N Gear at Traffic Lights?

[Arlene]

Shifting to N gear at traffic lights is unnecessary, depending on the waiting time. Here are the scenarios for different durations of waiting at traffic lights: 1. When the red light wait time is short: There's no need to shift to N gear. Keeping the car in drive while pressing the brake exerts some pressure on the transmission. 2. When the red light wait time is long: You can shift to N gear to relieve your tired feet. To avoid unnecessary situations, it's advisable to shift to N gear during prolonged traffic light waits. This not only saves fuel and reduces emissions but also makes the ride more comfortable and quieter for passengers.

[ElisaLynn]

Whether to shift to neutral (N) at a red light depends on habits and situations. I've always driven automatic transmission cars. For short red lights, I stay in drive (D) with the brake pedal pressed—it's convenient and prevents rolling. Shifting to N may slightly reduce fuel consumption as engine RPM drops, but the savings are negligible and offset within a few kilometers of driving. Safety is crucial: in D, the car has engine braking, so even if the brakes fail, the vehicle won't slide uncontrollably. In N, you rely entirely on the brakes, which is riskier, especially on slopes. Some say N gives their foot a rest, but frequent gear shifts wear components and require extra attention to shift back to D, potentially delaying acceleration and annoying drivers behind. After 20+ years of driving, I recommend staying in D with the brake pressed—it's safer and simpler for most scenarios. Only consider alternatives if stopped for over 1-2 minutes.

[DeArcher]

As a car owner, I consider environmental protection and cost savings, so I sometimes shift to neutral (N) at red lights to reduce fuel consumption and emissions. Technically speaking, shifting to neutral reduces engine load, theoretically saving fuel, but in reality, the savings are minimal—for example, waiting through several red lights might only save a few cents. Modern cars have intelligent systems that prevent excessive fuel consumption even when idling in drive (D), and frequently shifting to neutral can be bothersome, wasting time with each gear change. More importantly, safety is a concern: keeping the car in drive provides better stability, preventing unintended rolling on slopes or in unexpected situations. If the light is short, there’s no need to shift; for long lights, remember to use the foot brake and not release the handbrake when in neutral. I believe a balanced approach is best—just stay in drive (D) unless you’re certain shifting to neutral is effectively saving fuel.

[PiperAnn]

From a mechanical perspective, when waiting at a red light, shifting to N (Neutral) gear disconnects power transmission, reduces engine speed, and stops the torque converter from working, saving a small amount of fuel. However, when in D (Drive) gear, the torque converter is designed to handle slippage with minimal wear. On the contrary, frequently shifting to N gear increases wear on components such as the gear selector. Safety is a major concern; staying in D gear provides additional stability through engine braking, especially on inclined roads. I recommend keeping the car in D gear and applying the brake during short stops in daily driving to avoid accidents. The minimal fuel savings are not worth it, and shifting should only be considered under special circumstances.

[VonPhoebe]

Safety is my top priority, and I absolutely do not recommend shifting to N gear at red lights. Keeping the car in D gear allows the engine braking system to provide deceleration force in case of brake failure, whereas shifting to N gear relies solely on the brakes, which can lead to the car coasting and causing accidents. Operationally, shifting to N gear requires gear changes, which can distract attention, and if you forget to shift back, it increases the risk of slow starts. In terms of fuel efficiency, shifting to N gear reduces engine load and saves fuel, but the amount saved is negligible and not worth the hassle, especially for short light cycles. For long waits at lights, it's better to shift to P gear and engage the handbrake, making N gear unnecessary. When driving, I always choose to keep the car in D gear and apply the brakes to ensure simplicity and control.

[AndersonMarie]

My approach to handling stoplights depends on the duration. For short lights, I stay in D (Drive) mode and brake—simple and hassle-free. For long lights, I shift to N (Neutral) to rest my foot, though the fuel savings are minimal in theory (e.g., waiting two minutes saves just a tiny amount, which is negated by a few kilometers of extra throttle input). However, be cautious when shifting gears—avoid distractions and always re-engage the brake to prevent rolling. Safety first: keeping the car in D mode is more stable, especially on slippery roads. Habitually, most people, including me, prefer D mode for its simplicity and lower risk of error, reserving N mode for special cases—but always weigh the risks.