Why Does the Subaru XV Transmission Jerk?

Does Every Car Have a Three-Way Catalytic Converter?

Currently, most household cars are equipped with a three-way catalytic converter because it plays a crucial role in purifying exhaust emissions. Vehicles equipped with this device generally do not exceed emission standards. When high-temperature exhaust gases pass through the purification device, the catalyst in the three-way catalytic converter enhances the activity of CO, HC, and NOx gases, promoting specific oxidation-reduction chemical reactions. CO oxidizes at high temperatures into colorless, non-toxic carbon dioxide gas; HC compounds oxidize into water and carbon dioxide; and NOx reduces into nitrogen and oxygen. These three harmful gases are transformed into harmless substances, thereby purifying the vehicle's exhaust emissions. If the three-way catalytic converter becomes clogged, restricted exhaust flow during high-pressure exhaust conditions can reduce air intake, leading to decreased engine power and subsequently weaker acceleration. To achieve the same power output, drivers may need to press the accelerator harder, resulting in increased fuel consumption. Typically, the three-way catalytic converter should be cleaned every 30,000 kilometers. Additionally, it should be cleaned whenever the fuel injectors, throttle body, or intake manifold undergo maintenance.

15

2

Share

Can You Add Pure Water to a Car Radiator?

You can add pure water to a car radiator, but not too much. It should be filled between the upper and lower scale marks on the radiator. In winter, the added antifreeze must be of the same brand; mixing different brands can damage the engine. Composition and Function of Antifreeze: Antifreeze is mainly composed of ethylene glycol and water and is conductive. Generally, engine antifreeze should be replaced every two to three years to prevent severe engine damage over time. Antifreeze prevents the coolant from freezing in cold winter conditions, which could crack the radiator or damage the engine cylinder block. It also provides anti-corrosion protection for cooling system components, prevents scale buildup, and avoids reducing the radiator's cooling efficiency. Method for Replacing Car Antifreeze: First, inspect the car for any signs of leaks. Drain the remaining antifreeze, then insert a rubber hose connected to a tap into the radiator filler port. Turn on the tap to allow tap water to continuously flow through the engine cooling system for cleaning. After cleaning, add new antifreeze.

1

4

Share

Which category do automobiles belong to in fixed assets?

Automobiles, by their physical type, belong to the "transportation equipment" category in fixed assets. Houses and buildings: Refers to all houses and buildings whose property rights belong to the enterprise. Office equipment: Commonly used office and administrative equipment in enterprises. Specialized equipment: Refers to equipment owned by the enterprise specifically used for certain tasks. Cultural relics and exhibits: Refers to various cultural relics and exhibits in cultural institutions such as museums and exhibition halls. Books: Refers to books in professional libraries, cultural centers, and operational books of the unit. Transportation equipment: Refers to various means of transportation used by logistics departments. Machinery equipment: Mainly includes machine tools, power machines, tools, and backup generators used by the enterprise's logistics department for self-maintenance, as well as measuring instruments, testing instruments, and medical equipment in hospitals. Other fixed assets: Refers to fixed assets not included in the above categories.

5

0

Share

How Many Car Keys Are There?

When purchasing a new car, you generally receive two keys: one primary key and one spare key. Most modern cars are equipped with remote keys that contain electronic chips. Compared to traditional mechanical key locks, remote keys not only eliminate the need to insert and turn a key to unlock the car, enhancing convenience, but also feature highly complex encryption codes on their internal chips, providing better security. Car keys can be categorized into three types: mechanical keys, remote keys, and smartphone keys. Mechanical keys are the most common type, typically matching door locks similar to household locks, requiring insertion and rotation to unlock or lock. Their main drawback is the inability to remotely start the vehicle, making them unsuitable for certain scenarios, and they have largely been replaced by remote keys. Remote keys operate by emitting weak radio waves to control door opening and closing. Their advantages include remote start capability, greater convenience compared to mechanical keys, and the ability to remotely operate windows, trunk doors, etc. Additionally, remote keys consume less power and have longer battery life. Smartphone keys: Beyond mechanical and remote keys, some car models now utilize vehicle interaction systems, allowing smartphones to pair with the car via official platforms. When the car key is not available, the vehicle can be started or turned off using a smartphone, addressing various unexpected situations with stronger adaptability.

4

Share

Can a New Car Go on Long Trips During the Break-in Period?

New cars can go on highways during the break-in period, but there are speed limits. For domestic cars, the speed is generally limited to 40-70 km/h, while for imported cars, it is usually within 80 km/h. The precautions for the break-in period of a new car are as follows: Warm up the car before starting: Wait 5 to 10 seconds after shifting to second gear before starting; Avoid high-speed driving: New cars have speed limits during the break-in period, with domestic cars limited to 40 to 70 km/h and imported cars to 100 km/h; Avoid overloading: Carrying too much weight during the break-in period can damage the mechanical components; Avoid removing the speed limiter too early: The speed limiter is a throttle device installed between the carburetor and the intake pipe. Owners should not remove it prematurely but wait until after driving 1,000 km; Avoid changing oil too early: The initial oil used in a new car is specifically designed for the break-in period, featuring low viscosity, good heat dissipation, and excellent oxidation resistance; Avoid emergency braking: Emergency braking not only shocks the braking system during the break-in period but also increases the impact load on the chassis and engine.

17

2

Share

Is Polishing Necessary Before Car Waxing?

Whether polishing is required before car waxing depends on the condition of the paint. If the vehicle is well-maintained with intact paint gloss and overall good condition, you can proceed with waxing after simply cleaning the surface. Polishing is performed to smooth out minor scratches on the paint surface and address uneven areas caused by oxidation or dirt. Waxing precautions: Car wax should be applied in a shaded area, as high surface temperatures can reduce the wax's adhesion and affect the results. When waxing, use a manual sponge or waxing machine sponge in circular motions to ensure even application and proper bonding with the paint. Follow the top-to-bottom principle—start with the roof, then the front and rear covers, followed by the sides. After application, carefully inspect and remove any residual wax from the license plate, lights, and door edges to maintain aesthetics. If the sponge shows paint color matching the car, this may indicate damaged paint—stop waxing immediately and perform repairs. Adjust waxing frequency based on driving and parking conditions; the typical interval is every 2-4 months. Polishing precautions: During polishing, follow the "first waxed, first polished" principle. The coarseness of the polishing compound depends on the paint's oxidation level. Each polishing session removes a layer of paint, so avoid excessive frequency.

7

3

Share

Why Does the Subaru XV Transmission Jerk?

Does Every Car Have a Three-Way Catalytic Converter?

Can You Add Pure Water to a Car Radiator?

Which category do automobiles belong to in fixed assets?

How Many Car Keys Are There?

Can a New Car Go on Long Trips During the Break-in Period?

Is Polishing Necessary Before Car Waxing?

How to Replace the Battery in a Mazda 3 Axela Key?

How Many Years Can a New Car with Out-of-Town License Plates Be Transferred Back to the Local Area?

How to Identify Engine Oil Grades?

Can Flood-Damaged Cars Be Repaired?