Browse

Antiques Collectibles Apparel Baby Kids Items Books， Movies And Music Electronics Free Stuff Garden Outdoor Health Beauty Home Goods Home Improvement Supplies Musical Instruments Office Supplies Pet Supplies Sporting Goods Ticket Toys Games Transportation Others

Used Cars New Cars Others

Business Crafts Design And Web Events Home Improvement Legal Lessons Personal Pets Photography Repair And Technical Support Wellness Writing， Translation， And Transcription Others

Activities & Groups Artists & Musicians Classes & Lessons Events Friendship & Networking Lost & Found Rideshare Sports Teams Volunteers Travel & Travel Partners Skills & Language Swap Other

What is the difference between D gear and S gear in an automatic transmission car?

1 Answers

ElisaFitz

07/30/25 7:30am

Automatic transmission cars have different automatic control logic for shifting between D gear and S gear: D gear stands for Drive, representing the forward gear, which is oriented towards comfort and economy; S gear stands for Sports, representing the sport gear, which is oriented towards performance. D is the forward gear. When driving in this gear, the hydraulic system control device shifts up or down according to a pre-set program, and the entire process operates strictly according to the set logic—simply press the accelerator. S is the sport gear. When this gear is engaged, the hydraulic system can only connect to the first and second gears in the forward gear, and the automatic transmission can only shift automatically between these two gears, unable to engage higher gears. The upshift is delayed, naturally resulting in stronger power. When shifting from D gear to S gear, there will be a noticeable downshift phenomenon. This forced downshift is intended to achieve greater output torque.

Was this review help?

1

2

Share

More Forum Discussions

Does Idling in Place Harm the Car?

Idling in place can have certain effects on a car. Prolonged idling can lead to increased fuel consumption, and since the engine does not burn fuel completely during idling, it can produce more carbon deposits, thereby accelerating engine aging. When the engine is idling, there is a significant amount of residual exhaust gas in the cylinders. To ensure stable combustion, the car will automatically enrich the air-fuel mixture. During idling, the oil pressure in the engine is relatively low, which worsens the lubrication condition of moving parts. Unburned fuel washes the cylinder walls, the intake vortex is weak, and fuel combustion is incomplete, making it easy to form carbon deposits. When carbon deposits accumulate to a certain extent, the car's power performance will decline, and over time, it can easily cause engine wear.

How many kilometers does transmission oil need to be changed?

Transmission oil generally needs to be changed every two years or every 40,000 to 60,000 kilometers, but it depends on the vehicle model. Different models have different requirements. For Japanese models, it is recommended to change the transmission oil every 40,000 to 60,000 kilometers. For vehicles that frequently drive on highways, it is recommended to change the transmission oil approximately every 40,000 kilometers. The reason for changing transmission oil is that over time, the oil becomes oxidized due to high temperatures, and sludge and impurities accumulate, which can accelerate damage to the transmission. All oils have a shelf life. If the oil is not changed for too long, more sludge and impurities will accumulate in the transmission, leading to damage to transmission components.

What does the dashboard (!) mean?

Dashboard (!) is the brake system fault light. When the brake system fault light is on, it represents: 1. It is normal for the light to come on for a few seconds after turning on the ignition switch; 2. The brake fluid level is too low or the brake fluid has deteriorated, and the light comes on during driving; 3. The brake system has malfunctioned; 4. The brake pads are severely worn or have failed. Common fault indicator lights include: 1. Tire pressure warning light, usually displayed as a yellow warning light, with an exclamation mark in the middle resembling a tire; 2. Oil indicator light, if the oil light is on when the vehicle is started, it may be due to insufficient oil pressure; 3. Washer fluid indicator light, indicating that the washer fluid is about to run out or has already run out.

Is the Corolla Fuel-Efficient?

Toyota Corolla fuel consumption: 7.3L/100km. The Corolla is the tenth-generation straight-line upgrade of the Toyota COROLLA. Since its launch in November 2017, the Corolla has garnered attention from consumers worldwide; today, this globally best-selling car is produced by FAW Toyota, once again allowing Chinese consumers to experience Toyota's latest technology and driving experience. Actual fuel consumption of the Toyota Corolla: Regarding the actual fuel consumption reported by owners, it is explicitly noted that an average fuel consumption of 5.5L is unrealistic, but the top five fuel efficiency rankings can be achieved during highway driving. Configuration of the Toyota Corolla: The Corolla is equipped with a 1.2T engine paired with a fuel-efficient CVT transmission, delivering an overall power performance of 85kW/185N.m and a curb weight of 1.35 tons. The new Corolla comes standard with eight airbags, four independent suspensions, electronic parking, ACC adaptive cruise control, and collision warning. Active braking is also a standard feature.

What Causes Engine Idle Vibration?

Engine idle vibration can be caused by: 1. Dirty throttle body; 2. Faulty spark plugs; 3. One cylinder not working; 4. Aging rubber components in engine and transmission mounts; 5. Loose intake manifold clamps or cracked hoses; 6. Leaking intake manifold gaskets; 7. Damaged intake manifold or holes worn by other components. Additionally, unwanted air, fuel vapors, or exhaust gases entering the intake manifold can cause excessively rich or lean fuel mixtures, leading to abnormal combustion. When leaks affect individual cylinders, the engine may experience severe vibrations, particularly noticeable during cold idle conditions.

What are the differences between 0w40 and 5w40 engine oil?

The differences between 0w40 and 5w40 engine oil are: 1. Different low-temperature fluidity: 0w40 engine oil has better low-temperature fluidity and can adapt to lower temperatures, down to -35 degrees Celsius; 5w40 engine oil can only withstand temperatures as low as -30 degrees Celsius. 2. Different types of engine oil: 0w40 refers to fully synthetic oil; 5w40 refers to semi-synthetic oil. The number before the W represents the minimum temperature it can withstand. The smaller the number, the lower the low-temperature viscosity, the better the low-temperature fluidity, and the lower the applicable minimum temperature, making it easier to start in cold conditions. The number after the W represents the viscosity of the oil at 100 degrees Celsius. The larger the number, the higher the viscosity, which means it can form a good oil film at high engine temperatures and has a wider applicable temperature range.

Trending Ranking

Which car brand has a T-shaped logo?

To what level should the headlight height be adjusted?

Where is the auto start-stop button on the Q50L?

How many levels can autonomous driving be divided into?

How to Replace the Battery in a Mercedes-Benz C Key?

Where is the cabin air filter located in the Haima S5?

What does the exclamation mark mean on a car?

What are the components of an automatic transmission?

How many liters of engine oil does the Captiva require?

What does the A on the dashboard mean?

More Forum Discussions

Is it normal for gas to spray out when opening the fuel tank cap?

How to Remove Cement Splashed on the Car?

How long does it take to get a license plate?

Does Venucia Belong to Nissan?

Help

Cookie

Cookie Settings

© 2025 Servanan International Pte. Ltd.