What is Adding Inferior Oil?

1 Answers
Axel
07/29/25 10:46pm
Inferior oil refers to illegally processed oil. Adding inferior oil means using illegally processed engine oil. Below is a detailed introduction about automotive engine oil: 1. Overview: Engine oil, also known as engine lubricant, is called Engine-oil in English, with a density of approximately 0.91×10³ (kg/m³). It serves to lubricate and reduce friction, assist in cooling, seal against leaks, prevent rust and corrosion, and provide shock absorption for the engine. 2. Composition: Engine oil consists of two parts: base oil and additives. The base oil is the main component of lubricating oil, determining its basic properties. Additives can compensate for and improve the shortcomings of the base oil, giving it new properties, making them an important part of lubricating oil.
Was this review help?
13
5
Share
More Forum Discussions

Are the parking lots of 4S stores all open-air?

There are specialized warehouses, but most of the parking is open-air. Here is some information about cars: 1. Introduction: According to the latest national standard in China, "Terms and Definitions of Automobiles and Trailers" (GB/T3730.1-2001), a car is defined as a non-track vehicle powered by a motor with four or more wheels, mainly used for: transporting people and/or goods; towing vehicles that carry people and/or goods; special purposes. 2. Vehicle Identification Number (VIN): The Vehicle Identification Number (VIN) is globally universal, carries maximum information, and is searchable, making it the unique "ID card" for identifying vehicles worldwide. The VIN consists of a group of letters and Arabic numerals, totaling 17 digits. From the VIN, one can identify the vehicle's country of production, manufacturing company or factory, vehicle type, brand, model series, body style, engine model, model year, safety protection device model, inspection number, assembly plant name, and serial number, among others. Once a VIN is assigned to a vehicle, its code accompanies the vehicle through registration, insurance, annual inspections, maintenance, repairs, until recycling and scrapping.
5
1
Share

Why does the engine still make noise after the key is removed?

Sound from the cooling fan. Below are the specific details: 1. High water temperature: In summer, even after the car is turned off, you may still hear noise from the engine compartment. This is usually because the thermal switch of the cooling fan detects high water temperature and automatically activates. When the water temperature exceeds 90 degrees, the thermal sensor triggers the cooling fan to turn on, lowering the water temperature. In winter, when temperatures are lower and the water temperature is also lower, the cooling fan generally does not turn on. 2. Check the coolant level: If the fan continues to run for a long time after parking and turning off the engine, first check if there is a shortage of coolant. If the coolant level is normal, then it is necessary to go to a repair shop to check for any faults in the circulation cooling pump or thermostat. 3. Engine overheating: When the vehicle is driven long distances or the water temperature is too high, the electric fan will not turn off immediately. If the engine is turned off while it is overheating, it could cause seizing. The fan will continue to work for a while until the water temperature drops before shutting off.
1
0
Share

How Many Days After Car Tinting Can You Roll Down the Windows?

You can roll down the windows 7 days after car tinting, but you should not wash the car, as it may cause the tint film to peel off. Car tint film refers to the film applied to the surface of car windows, and its functions include: Blocking solar heat and glare; Reducing the load on the car's air conditioning system, improving fuel efficiency, and enhancing driving comfort; Blocking UV rays, protecting the skin of passengers from sunburn, and slowing down the fading, aging, and cracking of interior materials; Enhancing driving safety by keeping glass fragments in place in case of breakage, preventing injuries; Creating a private space and preventing others from peering in.
13
5
Share

How to Check Your Car's Maintenance Records?

Methods to check your car's maintenance records: 1. Provide the owner's proof materials to the 4S store for inquiry. The vehicle file systems of 4S stores of the same brand are all nationwide networked. You only need to bring the owner's identity certificate, car purchase invoice and other relevant documents to the 4S store to retrieve the car's maintenance records; 2. Use third-party query tools for inquiry. Car maintenance refers to the preventive work of regularly inspecting, cleaning, supplying, lubricating, adjusting or replacing certain parts of the car, also known as car servicing. Modern car maintenance mainly includes the maintenance scope of the engine system, transmission system, air conditioning system, cooling system, fuel system, power steering system, etc.
3
3
Share

How often should a sedan be inspected after six years?

After six years, sedans should be inspected annually. For vehicles over 15 years old, inspections are required every six months. The regulations for vehicle annual inspections are as follows: 1. Operational passenger vehicles must be inspected once a year within the first 5 years, and every 6 months after exceeding 5 years; 2. Trucks and large or medium-sized non-operational passenger vehicles must be inspected once a year within the first 10 years, and every 6 months after exceeding 10 years; 3. Small and mini non-operational passenger vehicles are exempt from inspection twice within the first 6 years, must be inspected annually after exceeding 6 years, and every 6 months after exceeding 15 years. The vehicle owner should apply for the inspection compliance mark at the local vehicle management office within three months before the expiration of the current inspection validity period. For example, vehicles due for inspection in June can undergo the annual inspection at the testing station in April, May, or June.
6
5
Share

What car brands start with 'po'?

Car brands starting with 'po' include Porsche, which is a German luxury car brand. Its models include the 911, Boxster, Cayman, Panamera, Cayenne, and Macan. Taking the 2020 Porsche 911 Special Edition as an example, its body dimensions are: 4519mm in length, 1852mm in width, and 1299mm in height, with a wheelbase of 2450mm and a fuel tank capacity of 67 liters. The 2020 Porsche 911 Special Edition features a MacPherson strut front suspension and a multi-link rear suspension. It is equipped with a 3.0T twin-turbocharged engine, delivering a maximum horsepower of 450PS, a maximum power of 331kW, and a maximum torque of 530Nm.
2
2
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.