How Long Does Motor Oil Generally Expire?

1 Answers
EllianaRose
07/29/25 12:19pm
Under unopened conditions, motor oil generally expires in 5 years, while oil poured into the engine expires in half a year. Additionally, leftover oil after maintenance expires in 1 year. Below is relevant information about automotive motor oil: 1. Function of motor oil: Motor oil lubricates and reduces friction in the engine, assists in cooling, seals against leaks, prevents rust and corrosion, and provides shock absorption. It is hailed as the 'blood' of a car. 2. Composition of motor oil: Motor oil consists of base oil and additives. The base oil is the main component of lubricating oil, determining its fundamental properties, while additives compensate for and improve the shortcomings of the base oil, imparting new properties. Additives are also an important part of lubricating oil. 3. Classification of motor oil: Based on the base oil, motor oil on the market can be simply divided into mineral oil and synthetic oil (vegetable oil is not included due to its scarcity). Synthetic oil is further divided into full synthetic and semi-synthetic.
Was this review help?
3
1
Share
More Forum Discussions

What brand is a circle with a horizontal bar in the middle?

A circle with a horizontal bar in the middle is the logo of Trumpchi Automobile. Here are the relevant details: 1. Trumpchi Logo: The 'G'-shaped logo is the initial of the English abbreviation 'GAC' for Guangzhou Automobile Group, embodying the brand philosophy of 'Building good cars for loved ones and filling the world with love.' Additionally, GAC Trumpchi is the first model under the Guangzhou Automobile Group. In 2014, Trumpchi was awarded the CCTV China Brand of the Year title, becoming the only brand in the automotive industry to receive this honor. 2. Trumpchi Brand: Trumpchi is primarily dedicated to the production and sales of Trumpchi-branded vehicles with internationally advanced standards. Centered around the concept of high-quality brand development, the greatest advantage of Trumpchi models lies in their unparalleled domestic after-sales service, coupled with reliable quality.
3
5
Share

Is it advisable to buy a commercial-to-private vehicle?

Be cautious when purchasing a commercial-to-private vehicle. Here are the relevant details: 1. Service life: Before purchasing, it is advisable to check its service life. Commercial vehicles have a mandatory scrapping period, and you may encounter some issues during annual inspections. 2. Commercial-to-private: This refers to the conversion of a commercial vehicle to a private vehicle. Typically, commercial-to-private vehicles mainly refer to decommissioned taxis converted to local license plates. After conversion to local license plates, the service life remains 8 years, with mandatory scrapping 8 years from the date of manufacture, no further annual inspections, and no extension of the scrapping period. The Road Traffic Safety Law stipulates: Taxis and mini trucks must be scrapped after 8 years of operation, with no extensions allowed. The scrapping period for converted taxis is the same as that for commercial passenger vehicles.
13
2
Share

How to Fold the Mirrors on the Teana?

First, press the one-touch start button to start the vehicle's engine; otherwise, the folding function cannot be activated. Then, locate the mirror folding function on the left armrest in the driver's cabin. Press the mirror folding button, and the mirrors will fold in. Press the button again to unfold them. Below is additional information on automatic mirror folding: 1. Automatic mirror folding is a convenient feature that enhances efficiency. Previously, drivers had to reach out the window or exit the vehicle to fold the mirrors, which was both inconvenient and unsafe. 2. The design of electric mirror adjustments may vary across different car models, but the functionality remains the same. Press the automatic folding button or rotate the knob to the folding position, and both side mirrors will fold simultaneously. Generally, the folded mirrors will automatically unfold upon the next vehicle startup.
10
1
Share

How to tell if tires need replacement?

Here are methods to check if tires need replacement: 1. Regularly inspect the tire wear indicator bars on your vehicle. When the tread wear on the tire surface exceeds these replacement indicator bars, it indicates the tires must be replaced. 2. When there is uneven wear on the tire surface or edges, or when bulges appear on the tire sidewalls, the tires should be replaced promptly. Below is relevant information about tires: 1. Tire lifespan depends on many factors including driving habits, road conditions, vehicle load, inflation pressure, maintenance records, speed, and environmental conditions. Besides regular inspections and inflation pressure maintenance, it's recommended to conduct thorough inspections once tires have been in use for five years. 2. Tires generally consist of three parts: the outer tire, inner tube, and flap. The inner layer has an airtight rubber layer that gradually moves toward lightweight development. The outer tire mainly consists of the carcass, tread, sidewall, and bead.
3
5
Share

What Causes Dynamic Stability Control Failure?

The causes of dynamic stability control failure are as follows: 1. Throttle: The throttle is dirty or has foreign objects and needs cleaning. 2. ESP Sensor: The ESP sensor is faulty or has poor contact. It is recommended to perform mechanical inspection while also using a decoder for check and decoding to identify the true cause. Otherwise, it may lead to insufficient power and affect safe driving. Relevant information is as follows: 1. ESP System: The ESP system can monitor the driver's operational responses (steering, braking, throttle, etc.), road information, and vehicle motion status in real-time, continuously sending instructions to the engine and braking system. When it detects unstable conditions (understeer or oversteer), it will actively intervene with braking to ensure the vehicle follows the intended trajectory, thereby ensuring safety. 2. Introduction: ESP is a type of vehicle active safety system, which is an extension of the Anti-lock Braking System (ABS) and Traction Control System (TCS) functions. When the ESP light on the vehicle dashboard comes on, it alerts the owner that there may be a fault in the stability control system, requiring prompt inspection and repair.
1
4
Share

Who is the manufacturer of Lynk & Co?

Lynk & Co currently has two factories in China. The first factory is Volvo's Taizhou Luqiao Plant, where the Lynk & Co 01 is produced. The second is the Zhangjiakou Plant, which manufactures the Lynk & Co 02 and 03. Lynk & Co is a premium brand of the new era, jointly established by Geely Holding Group, Geely Auto Group, and Volvo Cars. Below is relevant information: 1. The Taizhou Luqiao Plant is one of Volvo's three major vehicle manufacturing bases in China, where the Lynk & Co 01 will share the production line with the Volvo XC40. 2. The Zhangjiakou Plant is a world-class production line heavily invested in by Lynk & Co, integrating automation, informatization, flexibility, and environmental friendliness into a modern factory. It employs the top-tier KUKA flexible production line and utilizes laser welding technology, along with a real-time IT information system in the workshop, making it a highly advanced automobile manufacturing facility.
1
0
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.