What is the Difference Between Minor and Major Car Maintenance?

1 Answers
LunaAnn
07/25/25 7:08am
Difference between minor and major car maintenance: Minor maintenance refers to routine service items performed at the manufacturer-specified time or mileage intervals to ensure vehicle performance after driving a certain distance, including oil and oil filter replacement. Major maintenance, based on minor maintenance, involves replacing the oil, oil filter, air filter, and fuel filter at the manufacturer-specified intervals. Minor maintenance includes: 1. Engine oil: Engine oil is the lubricant for engine operation. It lubricates, cleans, cools, seals, and reduces friction in the engine, significantly lowering wear on engine components and extending their lifespan. 2. Oil filter: A component that filters the engine oil. Engine oil contains certain amounts of gums, impurities, water, and additives. During engine operation, metal particles from friction, airborne impurities, and oil oxidation products are all filtered by the oil filter. If unfiltered oil enters the circulation system, it could adversely affect engine performance and longevity. Major maintenance includes: In addition to oil and oil filter replacement, major car maintenance also involves the following two items: 1. Air filter: The engine inhales large amounts of air during operation. Without filtration, dust in the air can accelerate wear on the piston group and cylinder. Larger particles entering between the piston and cylinder can cause severe "cylinder scoring." The air filter's role is to remove dust and particles from the air, ensuring the cylinder receives sufficient, clean air. 2. Fuel filter: The fuel filter provides the engine with clean fuel by filtering out water and impurities from the gasoline, optimizing engine performance and offering the best protection.
Was this review help?
18
2
Share
More Forum Discussions

Can I Add 95 Octane Gasoline to a Tank with 92 Octane Gasoline?

If there is 92 octane gasoline in the fuel tank, it is best not to add 95 octane gasoline. Mixing 92 octane and 95 octane gasoline should be avoided as much as possible. Adding 95 octane gasoline to a tank with 92 octane gasoline occasionally will not cause problems. However, if 92 octane and 95 octane gasoline are mixed for a long time, the high anti-knock performance of 95 octane gasoline cannot be fully utilized, and delayed combustion may occur. The ultimate consequences of this phenomenon include incomplete combustion, increased carbon deposits in the engine, potential engine damage, environmental pollution, and resource wastage. Since parameters such as the engine's compression ratio and ignition timing are preset in the engine's computer, car owners should strictly follow the requirements in the user manual when selecting gasoline. Higher octane gasoline is not necessarily better, and blindly using high-octane fuel should be avoided. The differences between 92 octane and 95 octane gasoline mainly lie in their octane ratings, anti-knock performance, and price. 92 octane gasoline consists of 92% isooctane and 8% n-heptane, while 95 octane gasoline is composed of 95% isooctane and 5% n-heptane. Gasolines with different octane ratings have varying octane values—the higher the octane rating, the higher the octane value, and the better the anti-knock performance. 95 octane gasoline is more expensive than 92 octane gasoline because it contains a higher proportion of isooctane. Each engine undergoes comprehensive evaluation before leaving the factory, and based on its performance and other data characteristics, the required anti-knock performance—and thus the appropriate octane rating—is determined.
1
0
Share

How to Open the Trunk of the Golf Sportsvan?

Methods to open the trunk of the Golf Sportsvan: 1. Gently lift the trunk button, and the trunk lid will open successfully. 2. Use the key to unlock the switch, then press directly to open. 3. Simply pull the trunk handle to lift the trunk lid. Precautions: 1. Before each drive, the owner should check whether the trunk door lock is properly engaged. A lock that is engaged but not fully secured may cause the trunk to open suddenly, posing a potential safety hazard during driving. 2. Do not drive with the trunk lid partially or fully open, as exhaust fumes may enter the vehicle interior, posing a risk of poisoning.
9
5
Share

What cars start with the letter e?

There are two models that start with the letter e: the Enclave and the Excelle. Buick's emblem: A circle containing three shields of different colors arranged diagonally, representing three models in the Buick lineup: Electra, Lesabre, and Invicta. These cars are known for their high horsepower, individuality, practicality, and maturity. Well-known Buick models: Excelle, Regal, LaCrosse, GL8, Rendezvous, Enclave, Encore, and others. Buick holds an important place in American automotive history and is a major pillar of General Motors, driving progress in the entire automotive industry.
4
4
Share

What is the reason for the loud engine noise at idle in the BYD Tang?

The reason for the loud engine noise at idle in the BYD Tang is insufficient battery power. Taking the 2021 BYD Tang as an example, its body structure is a 5-door 7-seat SUV, with body dimensions of: length 4870mm, width 1940mm, height 1720mm, wheelbase of 2820mm, fuel tank capacity of 68 liters, and a body weight of 1895kg. The 2021 BYD Tang features a front MacPherson independent suspension and a rear multi-link independent suspension. It is equipped with a 2.0L turbocharged engine, delivering a maximum horsepower of 192PS, maximum power of 141kW, and maximum torque of 320Nm.
11
3
Share

How often should the coolant in a car be replaced?

The coolant in a car generally needs to be replaced every 20,000 kilometers or every two years. More information about coolant is as follows: 1. The engine coolant is an important substance for cooling the car. 2. Coolant has antifreeze properties, preventing the radiator from cracking due to coolant freezing. 3. The coolant should be replaced every year to protect the engine cooling system from corrosion, effectively prevent scale formation, avoid overheating of the car radiator, and provide long-term comprehensive protection for the radiator. 4. When replacing new coolant, it is essential to bleed the system.
4
2
Share

What is the method for removing a tire?

The method for removing a tire is as follows: 1. Loosen the screws; 2. Use a jack to lift the vehicle; 3. Remove the screws securing the wheel (counterclockwise to loosen, clockwise to tighten); 4. Remove the tire. The functions of a car tire include: 1. Supporting the entire weight of the vehicle and bearing the car's load; 2. Transmitting traction and braking torque to ensure adhesion between the wheel and the road surface; 3. Reducing and absorbing vibrations and impact forces during driving, preventing severe vibrations and early damage to car components; 4. Adapting to the vehicle's high-speed performance; 5. Reducing noise during driving.
17
1
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.