What to Do If You Can't See the Road Clearly and Drive in the Wrong Direction on a Rainy Day?

Should the Cadillac CT4 use 92 or 95 octane gasoline?

According to the official vehicle manual recommendation, the Cadillac CT4 should use 95 octane gasoline. In addition to checking the suitable gasoline grade in the vehicle manual for the Cadillac CT4, you can also refer to the fuel cap, which will also indicate the recommended octane rating. Generally, the appropriate gasoline grade can also be determined based on the engine's compression ratio. Vehicles with an engine compression ratio between 8.6-9.9 should use 92 octane gasoline, while those with a compression ratio between 10.0-11.5 should use 95 octane gasoline. If the compression ratio is higher, 98 octane gasoline is recommended. However, with the application of some new technologies, the gasoline grade cannot be solely determined by the compression ratio. High-compression engines can also be tuned to use lower-octane gasoline because, apart from the compression ratio, other factors such as ignition timing, turbocharging technology, and Atkinson cycle technology also play a role. Generally, the higher the gasoline octane rating, the higher the octane value and the better the anti-knock performance. 92 octane gasoline contains 92% isooctane and 8% n-heptane, while 95 octane gasoline contains 95% isooctane and 5% n-heptane. If the Cadillac CT4 occasionally uses the wrong gasoline grade, simply switch back to the correct octane rating after the current tank is used up. However, prolonged use of the wrong gasoline grade can have the following effects: For vehicles recommended to use lower-octane gasoline, accidentally using higher-octane gasoline will not cause damage, but the increase in octane value will alter the fuel's ignition point, leading to delayed combustion in the engine. This means both the engine's power output and thermal efficiency will decrease, resulting in poorer performance. For vehicles recommended to use higher-octane gasoline, using lower-octane gasoline can cause engine knocking. Because the octane value is significantly lower, the gasoline's ignition point decreases, causing it to ignite prematurely during the compression stroke. If combustion occurs before the spark plug fires during the compression stroke, resistance will arise during the upward stroke. This resistance makes the engine run very unstably. If the knocking is imperceptible, it only increases noise and does not cause significant engine damage. However, if noticeable knocking occurs, it indicates severe engine conditions. The vibrations not only affect driving stability but also cause abnormal wear on the pistons and cylinders, and in severe cases, can lead to cylinder scoring.

11

2

Share

Does the vehicle owner need to be present to apply for ETC?

No, non-owners can also apply for ETC. According to the "Implementation Plan for Accelerating the Application of Electronic Non-stop Toll Collection Services on Expressways" issued by the Ministry of Transport, the original valid ID card of the vehicle owner, the original and photocopy of the vehicle license, and the page of the vehicle license with the most recent annual inspection stamp are required. If applying on behalf of others, the original valid ID card of the agent is also required. If applying for ETC through major bank branches, a debit or credit card from the corresponding bank is also needed. Some banks only support ETC binding with credit cards, while others may require freezing a certain amount as a deposit when binding ETC with a debit card. Additionally, the current year's vehicle insurance policy is required. For corporate applications, the agent's ID (or driver's license), the company's organization code certificate (or business license), and the company seal are necessary. The ETC billing principle: There will be one or more ETC lanes on the expressway. Through dedicated short-range microwave communication between the vehicle-mounted electronic tag installed on the windshield and the microwave antenna in the ETC lane at the toll station, computer networking technology is used for backend settlement with the bank, achieving the purpose of paying tolls without stopping at the toll station. All of this is based on the principle of passing first and deducting fees later. Benefits of installing ETC: Time-saving: Eliminates the hassle of waiting in line; Green and eco-friendly: Low-carbon, as vehicles pass through toll stations without stopping, reducing noise and exhaust emissions and minimizing pollution; Reduced wear and tear: Saves costs by decreasing the frequency of vehicle starts and brakes, reducing wear and fuel consumption; Improved efficiency: Theoretically, ETC lanes can increase vehicle throughput by 2-3 times, making traditional ETC faster, more advanced, and more high-tech. Compared to license plate payment, ETC technology is more mature and advantageous. More policy support: The State Council explicitly stated in the "13th Five-Year Plan for the Development of a Modern Comprehensive Transportation System" that "by 2020, intercity transportation cards will be basically interoperable in key city clusters, and the proportion of vehicles equipped with ETC will significantly increase." It also set a target in the "13th Five-Year" comprehensive transportation development indicators: "By 2020, the ETC usage rate for road passenger vehicles should reach 50%." More future possibilities: In addition to continuously improving the convenience of ETC installation and usage and increasing the ETC usage rate for passenger vehicles, efforts will be made to promote ETC usage for trucks and explore deeper integration of ETC systems with vehicle-to-vehicle communication, vehicle-to-infrastructure coordination, and other smart transportation developments, providing comprehensive travel services for vehicle owners. This means more application scenarios will support ETC usage. ETC usage precautions: The ETC transaction sensing range is 8 meters. If the vehicle in front stops, maintain a distance of more than 10 meters to prevent automatic sensing and paying for the vehicle in front, in case the vehicle ahead has a faulty ETC device or none at all. The ETC lane recognition speed is 20 km/h. If the speed is too fast, the vehicle device information cannot be read, leading to failed billing. Unauthorized removal or movement of the OBU device, or if the ETC electronic tag falls off or becomes loose, will render the electronic tag invalid. It can be taken to the bank where the ETC card was issued or the expressway service office for inspection. If the loosening or detachment is not due to human interference, reactivation is sufficient. When using a debit card bound to ETC, insufficient balance will also cause billing failure. Follow the guidance of on-site staff to use the manual MTC lane and pay with cash or card. If the car windshield is too thick, it may cause...

8

0

Share

What is the detailed explanation of the Delong X3000 seat?

Delong X3000 seat details include rear adjustment, airbag height adjustment, lumbar support, and seat wrapping. The following are related issues about the car not accelerating: 1. Reasons why the car does not accelerate: clutch slipping, poor fuel quality, throttle carbon deposits, small car displacement, and too much load on the car. 2. Car shaking: The car not accelerating and shaking is caused by engine misfiring. Engine misfiring will result in insufficient power and acceleration, obvious and severe shaking of exhaust pipe emissions, and thus making a sound like a tractor.

8

3

Share

What is the tire pressure of the Elantra?

The tire pressure of the Elantra is between 2.3 and 2.5 bar. Tire pressure refers to the air pressure inside the tires, which is essentially the 'blood pressure' of a car. The level of tire pressure plays a significant role in the car's performance and power. Tire pressure is also an indicator of the car's load capacity, as the load a car can carry depends on the tire pressure. Taking the 2020 Elantra as an example, it is a compact car with the following dimensions: length 4610mm, width 1800mm, height 1450mm, a wheelbase of 2700mm, a minimum ground clearance of 152mm, and a curb weight of 1319kg.

9

0

Share

Why does the Toyota Levin have two coolant reservoirs?

Toyota Levin has two coolant reservoirs to ensure stable driving performance. Below is some information about FAW Toyota and GAC Toyota: 1. Differences in vehicle positioning and pricing: Compared to GAC Toyota, FAW Toyota is positioned more towards the premium segment, with models like the Prado and Crown in its lineup. Additionally, luxury vehicles priced above 500,000 RMB are also manufactured by FAW Toyota. 2. Different establishment times: FAW Toyota was established earlier than GAC Toyota. FAW Toyota was founded in 2000, while GAC Toyota was established four years later. The gap in establishment time can significantly impact various aspects of an automaker, such as vehicle manufacturing experience and market opportunities, creating certain disparities.

13

3

Share

What is the difference between Benz and Mercedes?

The main differences lie in the characters, production companies, and approaches. Here are the specific differences: 1. Different characters: Mercedes-Benz AMG models usually have the AMG suffix added after the model name. Generally, the modified cars have better performance than the original ones. Mercedes-Benz does not have the AMG suffix. 2. Different production companies: AMG is a subsidiary of Mercedes-Benz. Since it is a wholly-owned subsidiary of Mercedes-Benz, the modified models are sold directly by Mercedes-Benz. Mercedes-Benz is the parent company. 3. Different directions: AMG is a subsidiary of Mercedes-Benz specializing in modifying high-performance Mercedes-Benz cars, while Mercedes-Benz is mainly responsible for developing new products.

2

3

Share

What to Do If You Can't See the Road Clearly and Drive in the Wrong Direction on a Rainy Day?

Should the Cadillac CT4 use 92 or 95 octane gasoline?

Does the vehicle owner need to be present to apply for ETC?

What is the detailed explanation of the Delong X3000 seat?

What is the tire pressure of the Elantra?

Why does the Toyota Levin have two coolant reservoirs?

What is the difference between Benz and Mercedes?

What Does a Vehicle License Look Like?

Which car series does Citroën belong to?

What transmission does the Tiggo 8 Kunpeng Edition use?

How to Connect Jump Start Cables for a Car?