What does it mean when smoke comes out after opening the engine oil cap?

1 Answers
LeGage
07/30/25 9:29am
The reasons and solutions for smoke coming out after opening the engine oil cap are as follows: Normal phenomenon: Smoke coming out after opening the oil cap is a normal phenomenon. It's important to understand that the engine operates at very high temperatures, and engine oil naturally forms some oil vapor inside the engine. Therefore, if you open the oil cap before the engine has completely cooled down, smoke will appear. Engine oil burning situation: However, if this is accompanied by a pungent burning smell, it's a different story. This likely indicates an engine oil burning issue, in which case you should take your vehicle to an auto repair shop for inspection as soon as possible. Precautions: If there's smoke coming from the front of the car with a burning smell, it's best not to continue driving. After all, the impact of burning engine oil is significant - not only will the oil level continuously decrease, but it can also lead to incomplete combustion of the engine oil.
Was this review help?
9
2
Share
More Forum Discussions

Is 16GB Enough for a Dash Cam?

It depends on the video resolution setting. The higher the resolution, the more storage space it consumes. A 16GB memory card can record for approximately 4 hours at maximum. A dash cam is a device that records images, sounds, and related information while the vehicle is in motion. After installing a dash cam, it can record the entire driving process in video and audio, providing evidence in case of traffic accidents. For those who enjoy road trips, it can also be used to document the journey through challenging terrains. More details are as follows: 1. Most dash cams do not have built-in memory and rely on memory card expansion or portable digital hard drives. For Micro-SD or SD card expansions, capacities vary from 2GB, 4GB, 8GB, 16GB, to 32GB. For portable digital hard drives, capacities can range from 250GB, 500GB, to 1000GB. 2. To meet larger video storage needs, the configuration depends on personal requirements. Generally, the larger the memory, the higher the price of the dash cam. The appropriate memory size should be determined based on the recording clarity of the dash cam and the storage capacity of the camera. High-definition dash cams offer 720p and 1080p resolutions. A 4GB card can record 720p video for about 1 hour, while 1080p video occupies nearly twice the space of 720p. 3. Generally, a video resolution of 1280*720 is sufficient to clearly capture the license plate of the vehicle in front, while the plates of adjacent lanes may appear relatively blurry. Additionally, the light sensitivity of the dash cam's CMOS chip and the quality of the external lens glass directly affect its nighttime recording performance.
11
4
Share

Will backing up at a regular intersection be captured by traffic cameras?

Backing up at a regular intersection will be captured by traffic cameras. According to Article 50, Section 2, Chapter 4 of the "Regulations for the Implementation of the Road Traffic Safety Law of the People's Republic of China": When a motor vehicle is backing up, the driver should observe the situation behind the vehicle and ensure safety. It is prohibited to back up at railway crossings, intersections, one-way roads, bridges, sharp curves, steep slopes, or tunnels. Motor vehicles passing through intersections without traffic signal control or traffic police direction should comply with the following regulations: 1. If there are traffic signs or markings, yield to the party with the right of way. 2. If there are no traffic signs or markings, stop and look before entering the intersection, yielding to vehicles coming from the right. 3. Turning motor vehicles should yield to vehicles going straight. 4. Right-turning motor vehicles from opposite directions should yield to left-turning vehicles.
6
1
Share

Is it necessary for both parties to be present for the transfer of a used car?

The transfer of a used car does not require both parties to be present. Documents required for transfer: It is necessary to provide the relevant documents and certificates required for the transfer procedures, including ID card, organizational code certificate and official seal for company vehicles, vehicle registration certificate, vehicle license, original purchase invoice, transfer invoice for non-first-hand vehicles, insurance policy, and used car sales contract. Used car sales process: Inspect the vehicle and check for traffic violations, photocopy the required documents, submit the documents and pay the transaction fees, receive the transaction documents and transaction invoice. After obtaining the used car transaction invoice, the buyer can proceed with the transfer procedures at the transaction market with the transaction invoice.
7
1
Share

Can hot water be used to clean snow off a car?

Hot water should not be used to clean snow off a car. Methods for cleaning snow off a car: The snow on a motor vehicle can be removed using a snow shovel or by rinsing with 0-degree Celsius water. When rinsing, it should be done indoors, and after rinsing, the rinsed area must be thoroughly wiped dry to prevent freezing when the vehicle is in use. Precautions for driving in snow: When driving in snow, it is necessary to change to snow tires in a timely manner. Snow tires should not be changed only when it snows; they should be changed when the external temperature is around 7 degrees Celsius to ensure the driving safety of the motor vehicle. Snow tires become softer at low temperatures, effectively enhancing the safe driving of the vehicle.
14
0
Share

Is the windshield washer fluid that comes with the car antifreeze?

The windshield washer fluid that comes with the car is antifreeze. The function of automotive windshield washer fluid: It has characteristics such as cleaning, antifreeze, antifog, antistatic, lubrication, and corrosion prevention. The antifreeze performance can significantly lower the freezing point of the liquid, thereby providing antifreeze protection and quickly dissolving frost. The functions of windshield washer fluid: Cleaning performance, wetting and penetrating; antifreeze performance, the presence of alcohol and ethylene glycol can significantly lower the freezing point of the liquid, thereby providing antifreeze protection and quickly dissolving frost; antifog performance, a single-molecule protective layer forms on the glass surface, which prevents the formation of fog droplets, ensuring clear and transparent windshield, dustproof, and clear vision.
4
5
Share

What is the typical size of car tires?

The typical sizes of car tires are 185/65R14, 185/65R15, and 205/55R16, with the actual configuration subject to the vehicle's specifications. Functions of tires: Support the entire weight of the vehicle and bear the load; transmit traction and braking torque to ensure the adhesion between the wheels and the road; reduce and absorb vibrations and impacts during driving, preventing severe vibrations and premature damage to vehicle components; adapt to the high-speed performance of the vehicle and reduce driving noise, ensuring safety, handling stability, comfort, and fuel efficiency. Meaning of tire model: For example, 225/50R17: 225 represents the tread width in millimeters; 50 is the aspect ratio, indicating 50%, with most household car tires having an aspect ratio between 30% and 80%.
8
4
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.