How to Identify the Front and Back of a Tire?

Is it okay to use 92 gasoline regularly and 98 occasionally?

There is no problem with using 92 gasoline regularly and 98 occasionally. It is allowed in emergencies. 98 gasoline has higher anti-knock properties, providing stronger power performance after use. The higher the gasoline octane rating, the greater the compression ratio of the engine it is suitable for, which is an important point to note. The fuel label required for the vehicle is indicated on the fuel tank cap and also noted on the vehicle's driving license. The vehicle must use the specified fuel grade to ensure normal operation and avoid any issues. Occasionally using a higher or lower grade fuel will not cause any problems. Long-term use of lower-grade fuel in a vehicle designed for higher-grade fuel will increase normal maintenance costs for the engine, affect its performance, reduce its lifespan, and cause engine knocking. Different engines must use different fuels, and one should never believe the misconception that higher-grade fuel is cleaner.

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How to Replace the Cylinder Head Gasket on a Hyundai Verna?

Modern Verna cylinder head gasket replacement method is as follows: 1. Remove the valve cover and gasket, disassemble the valve rocker arm assembly, and take out the valve push rod; 2. Loosen and remove the cylinder head bolts in a symmetrical sequence from both ends to the middle, divided into three steps, then remove the cylinder head and gasket; 3. Clean any adhering substances from the mating surfaces of the cylinder block and cylinder head. Install the new cylinder head gasket with the smooth side or the side with wider flanges facing the cylinder block. For cast iron cylinder blocks with aluminum cylinder heads, the orientation is reversed; 4. When installing the cylinder head, first position it using locating bolts. After hand-tightening the other cylinder head bolts, remove the locating bolts, install the cylinder head bolts, and gradually tighten them to the specified torque in 2-3 steps using a torque wrench in the reverse order of removal; 5. Reinstall the valve push rod and valve rocker arm assembly in their original positions. After checking and adjusting the valve clearance, reinstall the gasket and valve cover.

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Is the Volkswagen Tiguan produced by FAW or SAIC?

Volkswagen Tiguan is a car produced by SAIC Volkswagen. The brands produced by SAIC Volkswagen include: Santana, Passat, Polo, Gol, Lavida, Touran, Tiguan, Skoda Octavia (Oavia), Superb (Superb). The following is a related introduction about the Volkswagen Tiguan: 1. The Volkswagen Tiguan adopts Volkswagen's latest family design concept in terms of appearance. The side profile of the body is smooth and natural, maintaining the consistent steadiness and restraint of German cars. The rear styling, like the side profile, gives a first impression of being classic and enduring, with the tail lights and headlights complementing each other, demonstrating a unified style from front to back. 2. In terms of other configurations, the large-size tires are particularly eye-catching, ensuring a perfect combination of off-road performance and road performance. Volkswagen's interior also guarantees excellent quality. The leather-wrapped steering wheel not only has a superior feel but also more comprehensive functions. In addition, the rear center armrest, sun visor with vanity mirror, glove box cooling function, and glasses case are all included as "standard equipment."

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What are the model specifications of the drive belt?

Motor belt models are divided into seven types: O-type, A-type, B-type, C-type, D-type, E-type, and F-type, with the cross-sectional area gradually increasing from O-type to F-type. Below are the precautions for motor belts: 1. When purchasing belts: The selected model should match the chosen V-belt; otherwise, the V-belt may exhibit abnormal conditions in the pulley groove. When replacing V-belts, it is best to bring the old belt to purchase to avoid model errors. 2. When replacing belts: If two or more V-belts need to be replaced, use the specified model of V-belts and ensure that the tension of each group of V-belts is consistent. Mixing old and new belts or reducing the number of belts is not allowed. Otherwise, the old and new V-belts will bear uneven force, and the old V-belts may even become ineffective, affecting power transmission and shortening the lifespan of the V-belts.

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Do 4S shops repair tires?

Most 4S shops do not repair tires. Here are the tire repair methods: 1. Cold and hot patching: The cold patching method uses cold patching film and glue to cover the holes on the original airtight layer. Since it is repaired directly without heating, it is called cold patching. The hot patching method also uses the above tools, but ensures the correct bonding of the adhesive under heating conditions. However, high temperatures may have some unnecessary effects on the tire rubber. 2. External patching strips for repair: This method can only repair small nail holes and is very convenient, but the service life is not long, and it will heat up and soften to prevent gas inside the tire from leaking through the nail holes. 3. Tire repair machine for repair: This is generally a tire repair and inflation all-in-one machine, which can avoid tire replacement, but it is generally only suitable for small nail holes.

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Does the auto-hold function damage the car?

auto-hold function does not damage the car. The automatic parking system (AUTO-HOLD) adds some functions to the electronic handbrake (HOLD), making the handbrake more user-friendly (especially for beginners). When the indicator light on the AUTO-H button is on, it means this function is activated. The working principle of automatic parking (AUTO-HOLD) is as follows: 1. The electronic handbrake simply locks and releases the rear wheels, while automatic parking applies to all four wheels. It determines whether the wheels need to be locked or released based on multiple pieces of information such as wheel speed, wheel torque, and throttle position; 2. When the wheel speed gradually decreases to zero, the automatic parking system will determine that the vehicle needs to brake, and the system will automatically lock all four wheels. At this point, you can release the foot pressing the brake pedal to relax; 3. When starting, just lightly press the accelerator pedal. After receiving signals such as throttle opening, gear position, and forward wheel torque, the automatic parking system will determine that the vehicle is about to start and will release the brake, allowing the vehicle to start normally.

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How to Identify the Front and Back of a Tire?

Is it okay to use 92 gasoline regularly and 98 occasionally?

How to Replace the Cylinder Head Gasket on a Hyundai Verna?

Is the Volkswagen Tiguan produced by FAW or SAIC?

What are the model specifications of the drive belt?

Do 4S shops repair tires?

Does the auto-hold function damage the car?

What are the main components of brake fluid?

Can I still drive if the SCR warning light is on?

What is the difference between CVT and 7-speed dual-clutch transmission?

How to Remove the BYD Song Armrest Box?