In which seasons are 15w40 and 20w50 engine oils used?

Does 'S' indicate provincial highways?

Provincial highway numbering adopts two to three digits (most provinces and cities use three digits), uniformly numbered at the provincial (municipal) level, represented by the letter 'S', where 'S' is the initial letter of the Chinese pinyin for 'province'. Since numbering is done by province or city, every province has an S101. In China, the numbering of roads at various levels is as follows: 1. Expressway numbering: Expressway numbering uses one to two digits, uniformly numbered nationwide, represented by the letter 'G', where 'G' is the initial letter of the Chinese pinyin for 'national-level roads' (expressways fall under the category of national highways). 2. National highway numbering: National highway numbering uses three digits, uniformly numbered nationwide, represented by the letter 'G', where 'G' is the initial letter of the Chinese pinyin for 'national-level roads'. 3. Provincial highway numbering: Provincial highway numbering adopts two to three digits (most provinces and cities use three digits), uniformly numbered at the provincial (municipal) level, represented by the letter 'S', where 'S' is the initial letter of the Chinese pinyin for 'province'. Since numbering is done by province or city, every province has an S101. 4. County road numbering: County road numbering adopts two to three digits (most counties and districts use three digits), uniformly numbered at the county (district) level, represented by the letter 'X', where 'X' is the initial letter of the Chinese pinyin for 'county'.

9

5

Share

How to align the timing chain on Hyundai ix35?

Here is the relevant introduction on aligning the timing chain for the Hyundai ix35: When the piston reaches the highest position, it marks the timing point below. The mark above requires opening the valve cover, and the timing is correct when both camshafts are parallel. The main function of the engine timing belt is to drive the engine's valve train, ensuring that the intake and exhaust valves open and close at the appropriate times to allow normal air intake and exhaust in the engine cylinders. Notes: 1. The interior of the Hyundai ix35 retains the rugged style consistent with its exterior. The cabin features almost no smooth curves, instead utilizing various horizontal and vertical designs. The dashboard is primarily made of hard plastic but includes textured and faux-stitching treatments to avoid an overly cheap feel. 2. In addition to the 2.0L naturally aspirated engine, the Hyundai ix35 also offers a newly added 1.4T turbocharged engine. The 2.0L naturally aspirated engine delivers a maximum power of 118kW (160PS) and a peak torque of 193N·m, while the 1.4T turbocharged engine produces a maximum power of 103kW (140PS) and a peak torque of 242N·m. In terms of transmission, the 2.0L naturally aspirated engine is paired with either a 6-speed manual or a 6-speed automatic transmission, whereas the 1.4T turbocharged engine is matched with a 7-speed dual-clutch transmission.

10

2

Share

What are the requirements for applying for a C1 driver's license?

C1 driver's license has a minimum age requirement of 18 years old, with no upper age limit. However, applicants aged 70 and above must pass tests on memory, judgment, and reaction abilities. The C1 driver's license is one of the codes for motor vehicle driver's licenses. The permitted driving scope of a C1 license includes small and mini passenger vehicles, light and mini cargo vehicles, as well as light, small, and mini special purpose vehicles. Small passenger vehicles must have a seating capacity of 9 or fewer people. The examination consists of four subjects: traffic regulations and related knowledge, field driving, road driving, and safe and civilized driving knowledge. Passing standards for the exams: Traffic regulations and related knowledge (Subject 1) – Written test, scored out of 100, with 90 or above required to pass. Field driving (Subject 2) – Conducted in a designated area with an actual vehicle. The minimum passing score is 80, and scores below 80 are failing. Road driving (Subject 3) – Conducted on roads or simulated areas with an actual vehicle. Scored out of 100, with 90 or above required to pass. Safe and civilized driving knowledge – Written test, featuring questions in the form of case studies, images, animations, etc. The test includes true/false, single-choice, and multiple-choice questions, totaling 50 questions. Scored out of 100, with 90 or above required to pass.

20

5

Share

Why Must You Downshift to First Gear Every Time You Park?

The reasons for downshifting to first gear every time you park are as follows: 1. Normally, vehicles start in first gear because it provides the highest torque, which is ideal for moving a stationary car. However, in special road conditions like icy, snowy, or muddy surfaces, second gear can be used to start, as the lower torque prevents excessive wheel spin that could cause the wheels to sink deeper. Starting in second gear, which has relatively lower torque, is suitable when the car doesn't require or shouldn't use too much torque to move from a standstill. Generally, starting in first gear is faster than in second gear because the engine revs up more easily in a lower gear, resulting in better acceleration. This is the principle behind "downshifting to overtake." When starting in second gear, to avoid stalling, the clutch must be released slowly, and the engine takes longer to reach its optimal operating range. By the time this happens, a skilled driver could have already shifted to third gear. The time taken for a second-gear start covers the shifting time for first, second, and third gears, making it slower than a first-gear start and potentially causing unnecessary wear to the vehicle. 2. To save fuel, most small cars have their idle speed set relatively low. In such cases, starting in second gear results in insufficient torque. Even with perfect clutch and throttle coordination, some car models may start very slowly with poor acceleration and are prone to stalling. Some low-power vehicles may stall immediately when attempting a second-gear start. Forcing a second-gear start also places a high load on the engine at low RPMs, and the second-gear transmission components endure torque loads beyond their design specifications. Prolonged use of second-gear starts can negatively impact the transmission's lifespan, lead to engine carbon buildup, and, if continued over time, may cause engine failure within a few years.

5

3

Share

Does Polishing Damage the Paint?

Car polishing does not harm the vehicle; on the contrary, it can better protect the paint. Advantages of car polishing: It can remove stains and scratches from the car surface and also provides some protection to the paint. After polishing, the car's paint can be restored to its original condition through mirror finishing, and it can also remove oxides and corrosive substances attached to the car body. Precautions for polishing: Clean the area to be polished thoroughly, use clay bars to remove asphalt and hard contaminants from the paint surface. If there are plastic parts around the scratches on the paint surface, protect them with masking tape to prevent the plastic from being rubbed during polishing.

7

2

Share

Will Engine Wiring Protection Agent Cause Corrosion?

Engine wiring protection agent will not cause corrosion, and reputable brands of protection agents come with warranties. Functions of wiring protection agent: Engine wiring protection agent is effective as it helps prevent wiring aging and avoids vehicle short-circuiting or spontaneous combustion caused by wiring issues; it can effectively repair minor cracks on the wiring, prevent electrical leakage, and ensure the efficiency of the vehicle's electrical circuit. Precautions for using wiring protection agent: Using engine wiring protection agent does not require much technical expertise. When applying the engine wiring protection agent, be sure to turn off the ignition switch and spray the agent onto the battery cables, ignition coils, engine electrical wiring harness, etc.

5

4

Share

In which seasons are 15w40 and 20w50 engine oils used?

Does 'S' indicate provincial highways?

How to align the timing chain on Hyundai ix35?

What are the requirements for applying for a C1 driver's license?

Why Must You Downshift to First Gear Every Time You Park?

Does Polishing Damage the Paint?

Will Engine Wiring Protection Agent Cause Corrosion?

What are the penalties for occupying charging station parking spaces?

Is the Consequences of Mixing Engine Oil and Hydraulic Oil Serious?

What is the application process for the Zhejiang A license plate lottery?

What are the rules for reducing penalty points through traffic law study?