What to Do When a Van Burns Engine Oil?

1 Answers
SanKingston
07/29/25 9:07am
Engine oil inevitably consumes under high temperature and oxidation in the engine, with a general consumption standard of one percent of gasoline. When the valve oil seal temperature drops and becomes stiff, causing oil to leak from the valve into the combustion chamber, immediately remove the engine cylinder head and replace the valve oil seal. If the exhaust pipe emits blue smoke when the car reaches normal temperature, it indicates poor sealing of the piston rings, requiring an engine overhaul. Low-quality engine oil has poor oxidation resistance and is easily oxidized under high temperatures, leading to oil burning. Therefore, high-quality engine oil should be used. Excessive engine speed causes poor lubrication and dry friction in rotating parts, resulting in abnormal engine wear and oil burning. Maintaining an economical speed can prevent this.
Was this review help?
11
3
Share
More Forum Discussions

Differences Between AT, CVT, and DCT?

dct, cvt, and at differ in structure and transmission methods. The specific details are as follows: Different structures: CVT is a continuously variable transmission; DCT is a dual-clutch transmission; AT is a torque converter transmission, which is an automatic transmission with gears. DCT is a stepped transmission, a dual-clutch transmission designed to reduce shift shock. CVT is more mature compared to DCT, but its transmission method limits the maximum torque capacity, making it mostly used in small-displacement vehicles. Different transmission methods: CVT uses a steel belt for transmission, while the DCT transmission has two automatically controlled clutches for operation. AT relies entirely on hydraulic torque conversion, i.e., hydraulic oil, to connect front and rear power. Because the AT transmission has a torque converter, a hydraulic buffer speed control device, it can easily achieve smooth starts and seamless creeping. DCT, on the other hand, uses dual clutches to achieve gear shifting and torque conversion, resulting in faster response during upshifts. It pairs well with engines that offer more precise torque output, as it has low tolerance for torque errors. AT features: Smoothness, driving pleasure, stable quality, compact size, and a wide transmission range; however, it has a complex structure, high cost, and is difficult to manufacture mechanically. Generally, its efficiency is relatively lower compared to DCT. DCT features: Nearly all the functionalities of AT, excellent driving pleasure, moderate cost, challenging control, direct power delivery, and higher efficiency; however, its low-speed smoothness is slightly worse than AT, and it is relatively bulky. CVT features: Affordable, very smooth, compact size, and simple structure; however, its gear ratio range is limited, fuel efficiency is only theoretical (as a more powerful hydraulic pump offsets CVT's theoretical fuel-saving advantage), and it has low torque-bearing capacity. DCT is also called a dual-clutch transmission. Its structure is similar to a manual transmission but has two sets of clutches. These two clutches control odd and even gears, respectively. DCT offers fast gear shifts, high transmission efficiency, and works well with certain small-displacement turbocharged engines. CVT transmissions are often used in some domestic or Japanese cars. They are compact, lightweight, and cost-effective. Most cars equipped with CVT transmissions are quite fuel-efficient. CVT transmissions have no shift shock, offering excellent smoothness. AMT is the earliest automatic transmission. Its structure is similar to a manual transmission but includes a control mechanism that operates the clutch and gear shifts. AT transmissions have minimal shift shock. DCT transmissions exhibit noticeable shift shock at low speeds, while AMT transmissions have significant shift shock and have been phased out. The R&D and manufacturing costs of AT transmissions are generally high, and they are often used in high-end vehicles. A manual-automatic transmission (Tiptronic) combines manual and automatic shifting functions. This technology was developed to improve the fuel efficiency and drivability of automatic transmissions, allowing drivers to manually override the computer-determined shift timing for better control and a richer driving experience. A manual-automatic transmission integrates manual and automatic shifting. It combines the advantages of both transmissions, minimizing power loss in the shifting system. Unlike a pure manual transmission, which requires the driver to operate the clutch, a manual-automatic transmission features an automatic clutch mechanism. When using the manual mode, drivers only need to shift into manual mode and adjust gears up or down based on speed. If the speed does not match the selected gear, the transmission will automatically downshift; if the speed exceeds the gear, the driver must manually upshift. Working principle: Structurally, a manual-automatic transmission mainly consists of a standard gearbox (similar to a manual transmission), an electronically controlled clutch, an automatic shift mechanism, and an electronic control unit. The electronically controlled clutch automatically engages, disengages, or partially engages the clutch as needed, controlled by the transmission ECU via a stepper motor that moves the clutch fork. The automatic shift mechanism engages the appropriate gear as required, typically using two stepper motors controlled by the transmission ECU. The gear lever setup resembles that of a conventional automatic transmission, with no clutch pedal. Essentially, the transmission uses automated controls to simulate manual shifting. During normal driving, it operates similarly to a hydraulic automatic transmission, except that the clutch disengages when the vehicle is stationary. Therefore, if parked on a slope, the driver must use the brake to prevent rolling. In manual mode, the driving experience mimics that of a manual transmission, with direct power delivery, no need to press a clutch pedal, and the ability to skip gears when shifting up or down.
16
2
Share

How to Handle a Traffic Accident Involving an Uninsured Vehicle?

Uninsured parties must bear the compensation within the liability limit themselves. If the vehicle administrator fails to insure the motor vehicle with compulsory third-party liability insurance as required by the state, the vehicle will be detained by the traffic management department of the public security authority. A fine of twice the minimum liability limit insurance premium will also be imposed as stipulated.
19
3
Share

How to Adjust the Car Air Conditioning Thermostat Switch?

Car air conditioning thermostat switch is located on the air conditioning control panel, and the temperature sensor is installed at the air intake position of the air conditioning system. It utilizes the sudden volume expansion of wax when heated from solid to liquid state to move the push rod, thereby controlling the opening and closing of contacts. The temperature adjustment in car air conditioning is primarily achieved by regulating the mixing ratio of cold and hot air through the blend door.
10
3
Share

What does a transmission TCM module failure mean?

Transmission TCM module failure indicates a problem with the valve body, which can usually be resolved by cleaning the filter screen. Below is relevant information about transmissions: 1. Transmission fluid: Transmission fluid is a lubricant that keeps the gear shift system clean, ensuring proper transmission operation and extending the lifespan of the transmission components. 2. Automatic transmission: Compared to manual transmissions in terms of functionality, automatic transmissions offer advantages such as automatic gear shifting, smoother shifting comfort, and simpler operation. Structurally, automatic transmissions are more complex than manual transmissions, with more precise components, thus requiring higher maintenance standards for automatic transmissions.
14
0
Share

What to Do When a Scooter Revs but Doesn't Move?

Possible causes include a broken drive belt or transmission damage. Below is some relevant information about motorcycles: 1. Characteristics of motorcycles: A motorcycle is a two- or three-wheeled vehicle powered by a gasoline engine, steered by handlebars for front-wheel turning. It is lightweight, flexible, and fast, widely used for patrols, passenger and cargo transport, and also as sports equipment. 2. Types of motorcycles: Broadly speaking, motorcycles are categorized into street bikes, road racing motorcycles, off-road motorcycles, cruisers, and touring bikes. 3. Components of a motorcycle: A motorcycle consists of five main parts: the engine, transmission system, running gear, braking system, and electrical instrumentation.
9
5
Share

How many cylinders does the Golf R engine have?

The Golf R is equipped with a four-cylinder engine. This engine delivers a maximum horsepower of 290 hp and a peak torque of 380 Nm. The maximum power output is achieved between 5,400 and 6,500 rpm, while the maximum torque is available from 1,850 to 5,300 rpm. It is paired with a 7-speed dual-clutch transmission. In terms of suspension, the Golf R features a MacPherson strut front suspension and a multi-link independent rear suspension. The multi-link independent suspension enhances wheel contact with the road, improving traction and, consequently, the car's handling. Additionally, the Golf R comes with a full-time all-wheel-drive system and a multi-plate clutch central differential. The all-wheel-drive system boosts mechanical traction and enhances acceleration performance.
17
4
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.