Browse

Property For Sale Property For Rent

Used Cars Others

Antiques Collectibles Apparel Baby Kids Items Books， Movies And Music Electronics Free Stuff Garden Outdoor Health Beauty Home Goods Home Improvement Supplies Musical Instruments Office Supplies Others Pet Supplies Sporting Goods Ticket Toys Games Transportation

Business Crafts Design And Web Events Home Improvement Legal Lessons Personal Pets Photography Repair And Technical Support Wellness Writing， Translation， And Transcription Others

Activities & Groups Artists & Musicians Classes & Lessons Events Friendship & Networking Lost & Found Rideshare Sports Teams Volunteers Travel & Travel Partners Skills & Language Swap Other

Why Does Engine Oil Spray Out from the Oil Filler Port?

2 Answers

Yvette

09/07/25 6:12am

It may be due to a damaged exhaust valve cover, preventing exhaust gases from escaping, resulting in excessive crankcase pressure. Below is an introduction to the causes of oil spraying: 1. Possible causes: Excessive clearance between the piston rings and cylinder walls, improper installation of piston rings, or deteriorated sealing can allow oil on the cylinder walls to enter the combustion chamber, leading to oil burning. Additionally, poor sealing performance of the valve seals, damage to the Positive Crankcase Ventilation (PCV) valve, or clogged crankcase ventilation can increase crankcase pressure, causing oil to enter the cylinder with crankcase gases and participate in combustion. 2. Considerations when selecting engine oil: It is best to use multi-viscosity lubricants. Multi-grade lubricants (also known as multi-viscosity lubricants) exhibit the properties of light oil at low temperatures and heavy oil at high temperatures. In scenarios where multi-grade oils are recommended, a single multi-grade oil can replace multiple single-grade oils.

Was this review help?

15

5

Share

NevaehLynn

09/19/25 5:24am

In all my years of repairing cars, I've seen quite a few cases of engine oil spraying out from the oil filler cap. The most common cause is excessive crankcase pressure. When piston rings wear out, compressed gases leak into the crankcase, and if the PCV valve gets clogged, the pressure has nowhere to escape except to force oil out through the filler opening. If not addressed promptly, oil can spray all over the engine compartment, contaminating seals and the ignition system, which can lead to engine slippage and overheating. I remember one client's car had this issue during a long trip—they pulled over to find oil spilled everywhere. An emergency inspection revealed that an overfilled oil pan worsened the situation. Regular maintenance, like checking oil levels and cleaning the PCV system, can significantly reduce such headaches. Otherwise, minor issues left unattended can double your repair costs.

Was this review help?

2

1

Share

Expand All

More Forum Discussions

What Does Drive Type Mean?

Drive type refers to the power source method that drives crude oil to the bottom of the well. The so-called automobile drive type refers to the arrangement of the engine and the form of the number and position of the drive wheels. There are three types of drive types: front-wheel drive, rear-wheel drive, and four-wheel drive. Here is a detailed introduction about drive types: Front-wheel drive (FWD): Front-wheel drive, also known as front-engine front-wheel drive, refers to the power distribution method in automobile design where the engine only drives a pair of front wheels. Most sedans adopt the front-wheel drive configuration. Rear-wheel drive (RWD): Rear-wheel drive vehicles refer to the drive form where the engine's power is transmitted to the rear wheels through the drive shaft, thereby pushing the vehicle forward. Rear-wheel drive is a relatively traditional drive form, and the earliest cars were generally rear-wheel drive. Four-wheel drive (4WD): Four-wheel drive refers to the form where the vehicle maintains four-wheel drive throughout the entire driving process. The engine's output torque is distributed to the front and rear wheels in a fixed proportion. This drive mode can provide good off-road and handling performance at any time, but it cannot adjust the torque distribution according to road conditions, and it has higher fuel consumption.

How soon must I retake the test after my driver's license has been deducted 12 points?

After accumulating 12 penalty points on your driver's license and completing the 7-day study period, you must take the subject one test within 20 days. According to Article 68 of the 'Regulations on the Application and Use of Motor Vehicle Driver's Licenses': If a motor vehicle driver accumulates 12 penalty points within one scoring cycle, the traffic management department of the public security organ shall detain their motor vehicle driver's license. Introduction to Driver's License: The Motor Vehicle Driver's License of the People's Republic of China, abbreviated as driver's license or 'driving license,' is a mandatory certification issued to motor vehicle drivers in accordance with the laws of the People's Republic of China. Examination Content: The test subjects include three items: traffic regulations and related knowledge, field driving, and road driving (including safe and civilized driving).

What does pollen filtration in car air conditioning mean?

The following is an introduction to pollen filtration in car air conditioning: 1. The car air conditioning system, abbreviated as the car AC system, is primarily designed to provide a comfortable in-car environment for passengers under any climate and driving conditions. People's requirements for the environment often vary based on physique, age, gender, habits, and health conditions. However, under normal circumstances, the majority of people have roughly similar requirements. 2. Suitable temperature, appropriate humidity, proper airflow, and clean air constitute the three essential elements of air conditioning: temperature, humidity, and cleanliness. A complete car air conditioning system creates a comfortable cabin environment by regulating temperature, humidity, airspeed, and ventilation.

What lights should motor vehicles turn on when passing through pedestrian crossings at night?

When motor vehicles pass through pedestrian crossings at night, they should slow down at a distance of 100 meters from the crossing and alternately use high and low beams to signal. According to Article 58 of the "Regulations for the Implementation of the Road Traffic Safety Law of the People's Republic of China," when motor vehicles drive at night under conditions of no streetlights, poor illumination, or low visibility such as fog, rain, snow, dust, or hail, they should turn on headlights, clearance lights, and tail lights. However, high beams should not be used when a following vehicle is driving close to the vehicle in front in the same direction. Motor vehicles driving in foggy conditions should turn on fog lights and hazard warning flashers. Article 59 states that when motor vehicles pass through sharp curves, slopes, arched bridges, pedestrian crossings, or intersections without traffic signal control at night, they should alternately use high and low beams to signal. When motor vehicles approach sections that affect safe sight distance, such as sharp curves or the tops of slopes, or when overtaking or encountering emergencies, they should slow down and sound the horn to signal. Article 61 of the "Road Traffic Safety Law of the People's Republic of China" stipulates that pedestrians should walk on sidewalks, and if there are no sidewalks, they should walk on the side of the road. Article 62 states that pedestrians should use pedestrian crossings or overpass facilities when crossing intersections or roads; when crossing at signalized pedestrian crossings, they should follow the traffic signals; when crossing at intersections without traffic signals or pedestrian crossings, or when crossing roads without overpass facilities, they should ensure safety before proceeding.

Where to Handle Changes in Driver Information?

To update personal information on a driver's license, you need to file a record at the Vehicle Management Office. Below are the required materials: Bring your ID card, household registration certificate issued by the local police station, driver's license, and two passport photos. Go to the Vehicle Management Office where the driver's license was originally issued, obtain the "Motor Vehicle Driver's License Application Form," and submit it along with the other documents to process the driver's license information change. Driving School Registration Time: When applying for a motor vehicle driver's license at a driving school, the registration process takes about half an hour to complete. After that, wait for the driving school's notification for a medical examination. Once the medical examination is completed, you can start learning for the motor vehicle driver's license subject one. After meeting the required study hours, you can take the exam. Other subjects must also be completed in this order. There is no need to repeat the medical examination within six months. Time to Obtain a Motor Vehicle Driver's License: Under normal circumstances, it takes about 45 days to obtain a motor vehicle driver's license, with the maximum time not exceeding three years. This period starts after completing the motor vehicle driver's license subject one exam. If the time limit is exceeded, the eligibility for the driver's license exam will be canceled, and you will no longer be able to take the exam.

How many days in advance can points be deducted before the driver's license score is cleared?

Points can be deducted on the day before the scoring cycle of the driver's license is cleared, and there is no regulation requiring points to be deducted ten days in advance. However, traffic violations must be handled within the current scoring cycle; otherwise, the record of the violations will be carried over to the next scoring cycle, resulting in the next scoring cycle not starting from 0 points. Calculation method of the driver's license scoring cycle: The cycle is calculated from the day the driver's license is initially obtained, with every 12 months constituting a cycle. According to the "Regulations on the Application and Use of Motor Vehicle Driver's Licenses," Article 65, the cumulative scoring cycle for road traffic safety violations (i.e., the scoring cycle) is 12 months, with a full score of 12 points, calculated from the date the motor vehicle driver's license is initially obtained. Others: Based on the severity of road traffic safety violations, the points deducted at one time are categorized into five types: 12 points, 6 points, 3 points, 2 points, and 1 point.

Trending Ranking

What is the Mazda 3?

How often should the coolant be changed in the Envision?

Do you need to switch to low beam before turning from high beam to position lights?

Will water enter the engine if it doesn't stall when passing through deep water?

Is the C260L Front-Wheel Drive or Rear-Wheel Drive?

What does forged wheel mean?

Is driving at 56 in a 50 speed limit zone considered speeding?

Is the Vezel Front-Wheel Drive or Rear-Wheel Drive?

How many points are deducted for parking without using the turn signal?

What are the reasons for a van suddenly stalling and failing to start?

More Forum Discussions

How Often Should the Coolant Be Replaced in a Tenth-Generation Accord?

Can I get a driver's license medical examination on weekends?

Does having only 2 points left on the driving license have any impact?

Do I Need to Be Present in Person to Handle Traffic Violations with My Driver's License?

Help

Cookie

Cookie Settings

© 2025 Servanan International Pte. Ltd.