Is it okay to keep the transmission in S mode on the highway?

[AustinLee]

It is not recommended to drive on the highway in S mode for extended periods. This is because S mode only delays upshifting without altering other operational aspects, which inevitably increases the transmission load in the short term, raises temperatures, and accelerates wear. Additionally, vehicle comfort is slightly reduced in S mode, so prolonged use should be avoided. Due to its enhanced power, S mode is typically used for overtaking or climbing hills. Once the maneuver is completed, it is advisable to switch back to the more economical D mode, as S mode consumes significantly more fuel due to increased fuel injection at higher RPMs. Moreover, S mode can lead to greater transmission wear, making it unnecessary for everyday driving.

[VanJosephine]

I used to frequently use the S gear on highways, feeling the quick acceleration and thrilling overtaking made driving especially exciting, but the fuel consumption was shockingly high—averaging 20% more than in D gear, which emptied my wallet. The engine running at high RPMs for long periods caused severe wear; my car had its transmission repaired several times before even reaching 100,000 kilometers, and the noise was so loud that my ears would buzz after long drives. Later, I got smarter and only switch to S gear when going downhill to reduce braking or for emergency overtaking. On smooth roads, I obediently stick to D gear—saving money and hassle, with much more stable engine temperatures.

[DelElena]

I absolutely love using the S mode on the highway—the roar of the engine gets my blood pumping, and the acceleration is so responsive it feels like driving a race car. Overtaking and climbing hills becomes a breeze. But keeping it in S mode all the time isn’t feasible; it burns fuel way too fast, costing me an extra ten bucks or so per 100 kilometers, which my wallet can’t handle. Over time, the engine temperature tends to run high, risking damage to components and leading to even pricier repairs. Now, I switch between modes—D mode for boring stretches and S mode when I need a thrill—balancing fun and practicality.

[DawsonAnn]

As a fuel-saving advocate, I usually keep it in D mode on the highway. I tried S mode for a while, but fuel consumption surged by 25%, the engine noise was unbearable, and long-distance driving became exhausting and costly. It also accelerates transmission wear, shortening its lifespan, and the repair bills are shocking. From a safety perspective, high RPM increases the risk of losing control. It's better to stick with D mode for comfort and stability. The money saved on fuel can be better spent on car maintenance.

[VanDaniella]

It is not recommended to keep the gear in S mode for long periods on highways, as the engine running at high RPMs continuously can lead to overheating and aging. I once saw a friend's car whose transmission was ruined by driving like this, costing thousands to repair. Fuel consumption is about 20% higher than normal, and the increased noise can distract the driver. S mode should only be used for overtaking or on slopes. On flat roads, switching to D mode extends engine life and saves fuel, while using cruise control makes driving safer and more efficient.

[SanPiper]

I frequently drive long distances on highways and have tried using Sport mode (S mode) the entire way for a thrilling experience, but it comes with significant drawbacks: fuel consumption spikes by 20%, the engine operates under high load producing a constant droning noise, and the engine temperature monitor frequently triggers alarming warnings. Later, I adjusted my strategy—smooth sections are handled in Drive mode (D mode) for fuel efficiency and quiet operation, while temporarily switching to S mode in traffic jams or uphill climbs enhances responsiveness. This approach reduces wear and lowers maintenance costs. By making decisions based on real-time road conditions, I avoid prioritizing momentary excitement.