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 date for tire code 4621?

1 Answers

AngelaAnn

07/30/25 5:49am

Tire code 4621 represents the production date of the tire, where 46 stands for the 46th week of the year, and 21 indicates the year 2021. Regarding tire parameters, they can be identified from the markings on the sidewall of the tire. Currently, almost all passenger car tires use radial tires. According to the identification method of radial passenger car tire specifications, the parameters are labeled in the order of "tire width, aspect ratio, compatible rim diameter, load index, and speed rating." If a tire's specification is 185/60R15-84H, its parameters are as follows: 185 indicates the tire width is 185mm; 60 represents the aspect ratio, meaning the section height is 60% of the width; R indicates that the tire is a radial tire, with the inner layer manufactured using the radial method; 15 is the rim diameter in inches; 84 is the load index, indicating a maximum load capacity of 500 kg, with four tires totaling 500×4=2000 kg; H refers to the speed rating of 210 km/h. Under normal circumstances, the shelf life of a tire is about 4-5 years. Even if the tire has been driven less, it still needs to be replaced once it exceeds its shelf life. When purchasing, pay attention to the production date and try not to buy tires that have been stored for more than 3 years. Since tires are rubber products, they will age over time, and their performance will deteriorate. If cracks appear, there is a higher risk of tire blowouts, which can affect driving safety.

Was this review help?

13

4

Share

More Forum Discussions

How to Claim Compensation for Water Damage to New Energy Vehicles?

If the owner only purchases vehicle damage insurance and the vehicle is flooded, they can only receive compensation for damages to parts other than the engine, while the repair costs for engine damage must be borne by the owner themselves. If the owner purchases the main vehicle damage insurance and additionally buys water damage insurance, the insurance company will compensate for all damages caused by flooding, including the engine. Below are methods for identifying flood-damaged and accident vehicles: 1. Check the car locks: Look for signs of being pried open, damaged, or filled with glue. Then use the key to open each door to see if the locks are from the same set and whether each door lock can be turned easily. Note that if turning the key is very difficult or the key almost breaks before the door opens, it might be due to flooding causing the central control motor to rust and malfunction. 2. Engine compartment: Inspect the mounting brackets for the lighting and signal light groups in the engine compartment for breaks or looseness. Check the wire connectors and sockets; if there is a large amount of sediment or rust spots inside, it may indicate a flood-damaged vehicle.

BMW C400GT Review Results?

Overall not bad, the configuration depends on personal preference. Here are the detailed introductions of related contents: Advantages: Flexible handling, the vehicle body is relatively stable, but there is no pressure when moving the car, driving at low speed, or turning around. The tire grip is very good, and you can be confident when cornering. The instrument shows a fuel consumption of 4 liters per 100 kilometers. There is a socket in the storage box on the right side of the front of the car. The size and position of the windshield are very good. Disadvantages: The price is not affordable. The tire pressure is too high, and it is very bumpy every time you pass a pit. The shock absorption is not as soft as the ordinary Haojue 125 tappet engine. When driving, the storage space under the seat is only a little larger than that of a 125 scooter. The throttle has a slight dead zone, and the brake travel is relatively long.

What does it mean when the vehicle battery indicator light turns red?

Generally, this indicator light on the dashboard will illuminate in cases of alternator failure (or loose belt) or when the engine is not running, signaling that the alternator is malfunctioning or not operating. Below are specific details about automotive batteries: 1. Warranty Period: The typical warranty period for car batteries is 2-3 years. For car owners who pay great attention to vehicle maintenance and particularly battery care, the battery can generally last 4-5 years. 2. Charging Methods: Start the car at regular intervals to charge the battery. Another method is to disconnect the two terminals on the battery. It's important to note that when removing the positive and negative terminal cables from the battery posts, the negative cable should be disconnected first, or the connection between the negative terminal and the car chassis should be removed. Then, disconnect the other end marked with the positive sign (+). Batteries have a certain lifespan and need to be replaced after a certain period. When replacing, the same sequence should be followed, but when reconnecting the terminal cables, the order is reversed: connect the positive terminal first, then the negative terminal.

How to Calculate Fuel Consumption Formula and Cost per Kilometer?

Fuel consumed ÷ Distance traveled × 100 = Fuel consumption per 100 kilometers; The data on fuel consumed is relatively difficult to obtain. Generally, a full fuel tank is used as the initial data. After driving a certain distance, the tank is refilled to full, and the refueling data provided by the gas station is taken as the standard. Below are the specific steps for calculating fuel consumption: 1. Method: First, fill the vehicle's fuel tank to full, then reset the odometer to zero, and proceed to drive. After driving 200 kilometers, enter a gas station to refuel. When the tank is full, the fuel dispenser shows 15 liters. According to the formula (15 ÷ 200 × 100 = 7.5), the vehicle's fuel consumption per 100 kilometers is 7.5L. 2. Notes: Individual driving habits, road conditions, vehicle load, tire pressure, and weather conditions can all affect fuel consumption, making it vary. A more scientific method for calculating fuel consumption involves calculating the average. Drive the vehicle for 10,000 kilometers, record the data after multiple refueling sessions during this period, then take the average of the highest and lowest fuel consumption values. This method yields relatively more scientific data.

Are exhibition cars available for sale?

Exhibition cars can be sold. The display cars in 4S stores are brand new vehicles, placed in the showroom solely for the purpose of allowing customers to get a close look at the models. Apart from being driven into the showroom, exhibition cars are no different from new cars stored in the warehouse. However, since many people sit in and touch them daily, to maintain the showroom's image and customer experience, these cars are cleaned and polished every day. In some ways, their condition might even be better than those stored in the warehouse. If you're considering a purchase, check the manufacturing date to confirm whether it's a stock vehicle. Exhibition cars have a stipulated replacement period, after which they need to be updated. The replaced demonstration cars are not taken back by the manufacturer; they are vehicles purchased by the 4S store itself, which handles their disposal. However, since exhibition cars are already registered and have some mileage, they can only be sold as used cars. Being used cars, exhibition cars are significantly cheaper than new ones, with shorter service histories compared to regular used cars. Additionally, buyers can save on purchase taxes and other fees.

What Are the Basic Knowledge Points of Car Maintenance?

Automobiles are prone to issues such as failure to start, steering wheel vibration at high speeds, and heavy steering. Here are the detailed explanations for car maintenance: Failure to Start: First, check whether components like the high-voltage wires have become damp due to rain exposure. If so, dry the damp parts before attempting to start the engine. Next, inspect the spark plugs for damage. If they are damaged, simply replace them with new ones. Also, verify whether the battery voltage is sufficient. Sometimes, leaving the lights on for an extended period can drain the battery. In such cases, shift the car into second gear, press the clutch, and use another vehicle to tow-start it. Steering Wheel Vibration at High Speeds: When driving at high speeds or at a certain high speed, the car may exhibit instability, wobbling, or even steering wheel vibration. If alignment and suspension components are confirmed to be in good condition, the first step should be to perform tire dynamic balancing.

Trending Ranking

What is the function of the evaporator in a car's air conditioning system?

How long does it take to charge the battery of a small vehicle?

What is the difference between Audi RS4 and S4?

Is the Driver's License Nationally Networked?

Why does the car still make noise at the front after turning off?

What are the types of vehicles?

What are the hidden features of the Suzuki SX4?

Where is the three-way catalytic converter of a car located?

What's the reason for the motor not responding?

Where is the headlight switch on the Kawasaki 400?

More Forum Discussions

How long does it take to receive a renewed driver's license by mail?

What Causes a Car's Air Conditioning to Stop Cooling During Midday High Temperatures?

Which direction should the shading surface of H4 LED headlights face?

Should the clutch be fully released when making a U-turn in first gear during Subject Three?

Help

Cookie

Cookie Settings

© 2025 Servanan International Pte. Ltd.