How to Distinguish Between the 2019 and 2020 Teana Models?

How to Drive a Dry Dual-Clutch Transmission in Traffic Jams?

Here are the driving methods for dry dual-clutch transmissions in traffic jams: 1. Dual-clutch transmissions have manual mode and sport mode (S gear). When in a traffic jam with a dry dual-clutch, use manual gear or S gear, and shift to neutral when stopping. 2. In traffic jams, if you keep the gear in D and move forward intermittently, the gear will switch back and forth, which will definitely cause overheating and reduce its lifespan. Therefore, in traffic jams, use manual gear or S gear to reduce frequent shifting of the dual-clutch, thereby minimizing clutch overheating. Notes: 1. If using S gear, keep it in 1st gear. However, it's important to know that this only reduces friction from switching between 1st and 2nd gears but does not completely eliminate friction. 2. As long as the vehicle is moving, it involves the semi-engagement of the clutch, during which the clutch plates are constantly rubbing. 3. Introduction to S gear: S gear, short for sport in English, is the sport mode. Many car models refer to it as sport mode. When S gear is engaged, the car will shift up slowly or downshift early to keep the engine at higher RPMs, increasing torque output for greater power.

102

Share

Can Antifreeze Replace Windshield Washer Fluid?

Antifreeze cannot replace windshield washer fluid. Antifreeze is primarily used in liquid-cooled engine cooling systems, while windshield washer fluid is mainly for cleaning and antifreeze purposes. The compositions of these two liquids are entirely different and should not be mixed. The full name of antifreeze is antifreeze coolant, meaning it is a coolant with antifreeze properties. Antifreeze prevents the coolant from freezing and cracking the radiator or damaging the engine cylinder block or head when the vehicle is parked in cold winter conditions. Composition of Antifreeze: The main components of antifreeze are 50% purified water, 40% methanol, and 10% other substances. Types of Antifreeze: Antifreeze is generally categorized into three types: ethanol-water, glycerol-water, and ethylene glycol-water. Can Different Antifreeze Brands Be Mixed? It is necessary to use the same brand of antifreeze. Different brands may have varying production formulas, and mixing them could lead to chemical reactions between additives, rendering them ineffective.

107

Share

What does 97w mean on a tire?

Tire 97w indicates the load index and speed rating of the tire. Here, 97 means that a single tire can bear a maximum weight of 730KG, and w means that the tire can withstand a maximum vehicle speed of 270km/h. Additional information: Speed rating: The speed rating refers to the maximum speed that a tire can achieve under specified load and inflation pressure standards. Common speed ratings for most vehicles on the market are H and V, while some high-performance vehicles use W and Y (don’t assume that H and V are similar—their tire structures differ, leading to price variations).

111

Share

What to Do When a Tire is Punctured by a Nail but Doesn't Lose Air

Tire punctured by a nail without losing air should slow down and find a repair shop to fix the tire. The following are the methods for tire repair: 1. Remove the tire and locate the puncture; 2. Use a wrench to expand the hole and remove the nail with pliers; 3. Grind the punctured area with a grinder and apply glue to the ground area; 4. Use the appropriate tools to evenly apply the patch to complete the repair. Extended content: Car tires are one of the important components of a car, directly in contact with the road surface, working together with the car suspension to mitigate the impact during driving, ensuring good ride comfort and smooth driving, and ensuring good adhesion between the wheels and the road surface, thereby improving the car's traction, braking, and passing ability.

106

Share

What Causes Shaking When Starting an Automatic Transmission Car?

Here are the reasons for shaking when starting an automatic transmission car: 1. The throttle body is too dirty, causing uneven air intake and operation; 2. Fuel line blockage, leading to insufficient fuel supply at low throttle and uneven operation of engine cylinders; 3. Abnormal transmission operation; 4. Broken or burned high-voltage wires or spark plug failure causing some cylinders to misfire; 5. Whether the battery voltage is within the specified range. Correct method for starting an automatic transmission car: 1. Turn on the power, then start the car; 2. After ignition, press the brake, shift to D gear, release the handbrake, and gently press the accelerator to start; 3. After starting, accelerate appropriately according to road conditions. Precautions for driving an automatic transmission car: 1. Use one foot to control the car; 2. Use the gear appropriately when waiting at traffic lights.

105

Share

Should the Radiator Be Filled with Water or Antifreeze?

The radiator should be filled with antifreeze. The car radiator, also known as the heat exchanger, is a key component in the automobile cooling system, and its function is to dissipate heat. Below is some information about the radiator: 1. The coolant absorbs heat in the radiator, dissipates the heat when flowing to the heat exchanger, and then returns to the water jacket for circulation, playing a role in temperature regulation. It is an important part of the car engine. 2. Adding water to the radiator can cause scale buildup, corrode the engine block and radiator, and in severe cases, lead to radiator leakage, affecting cooling efficiency and damaging the engine. 3. Water freezes below 0 degrees Celsius, and when it freezes, it expands in volume, which can crack the radiator and damage both the radiator and the engine block. Water also boils at 100 degrees Celsius, evaporating in large quantities, which is not conducive to cooling.

119

Share