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Why is SL engine oil more expensive than SN engine oil?

1 Answers
VonTanner
07/29/25 10:13pm
SL engine oil is two grades higher than SN engine oil. Here is relevant information about engine oil: 1. Definition: Engine oil, also known as engine lubricant (English name: Engine-oil), has a density of approximately 0.91kg×10 cubic meters. It serves multiple functions for the engine, including lubrication and friction reduction, auxiliary cooling, sealing and leak prevention, rust and corrosion protection, as well as shock absorption. It is often referred to as the "blood" of a car. Engine oil consists of two main components: base oil and additives. 2. Characteristics: The engine is the heart of a car, containing many metal surfaces that move against each other under friction. These components operate at high speeds, in harsh environments, and can reach temperatures between 400°C and 600°C. Advanced technology can convert natural gas into crystal-clear fully synthetic base oil, which is then enhanced with unique power cleaning technology to create lubricants with superior cleaning and protective performance. Under such extreme conditions, only qualified lubricants can reduce engine component wear and extend service life. Engine oils on the market can be broadly categorized into mineral oils and synthetic oils based on their base oil (vegetable oils are not considered due to their scarcity). Synthetic oils are further divided into fully synthetic and semi-synthetic. Lubricant base oils mainly fall into two categories: mineral base oils and synthetic base oils. Mineral base oils are widely used and account for a large proportion (about 95% or more), but some applications require products formulated with synthetic base oils.
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How many times can you practice for the Subject 2 mock test?

Mock tests at the examination center require payment. Typically, one mock test fee allows for two practice laps. If there are not many people scheduled, you can pay for two sessions to practice four laps. The following are important notes for Subject 2: 1. Adjust the seat properly: Before starting, ensure the seat is adjusted and the seatbelt is fastened before fingerprint verification. 2. Follow the test rules: Each test item at the examination center is monitored by GPS positioning. The control line (yellow dashed line) for each item marks the test area. Once the front of the vehicle crosses the control line, it means you have entered the test for that item and must complete it according to the rules. 3. Correct mistakes promptly: If you notice an operational error, correct it immediately to ensure accuracy and minimize point deductions.
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What is the voltage of the two wires on the car's charcoal canister solenoid valve?

The voltage of the two wires on the car's charcoal canister solenoid valve is 12 volts. The specific introduction is as follows: 1. Working principle: The working principle of the charcoal canister solenoid valve is that the purge solenoid valve controls the purification function of the charcoal canister through pulse width modulation. That is to say, the ECU computer turns the grounding circuit of the solenoid valve on or off at a certain frequency according to different operating conditions of the engine. The ECU computer controls the vacuum of the purge charcoal canister by operating a normally closed solenoid valve. 2. Precautions: The charcoal canister absorbs the oil vapor volatilized from the fuel tank to prevent the oil vapor from entering the atmosphere and polluting the environment. The function of the charcoal canister solenoid valve is to open when the oil vapor in the charcoal canister reaches a certain amount, allowing the oil vapor to enter the engine for combustion and reuse.
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Can the Subject 3 Test Be Successfully Scheduled During the Application Process?

Subject 3 test can be successfully scheduled during the application process. After a successful scheduling, users can check the acceptance status of the reservation in the online progress tracking system. Below is relevant information about scheduling the Subject 3 test: 1. If the status shows 'Under Review,' rescheduling is required: Generally, applicants who schedule the Subject 3 test online will receive a result within 24 hours after the scheduling. If the scheduling is successful, the vehicle management office will send a text message notification confirming the successful scheduling, along with the test time and location. Applicants should attend the test as scheduled. If the webpage continues to display 'Under Review,' it indicates the scheduling was unsuccessful, and the applicant needs to cancel and reschedule. 2. Successful scheduling allows printing of the confirmation: After a successful scheduling, users can check the acceptance status in the online progress tracking system. If the scheduling is successful, the confirmation can be printed from the 'Business Completed' page. Typically, applicants receive a text message notification about one week before the test. However, some users may not receive it due to network issues. If the scheduling is unsuccessful, the 'Business Completed' page will display 'Scheduling Failed,' and the applicant can reschedule. If it shows 'Processing,' it means the scheduling result is not yet announced, and further waiting is required.
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What causes the clutch to have no pressure?

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Can I Skip Driving Practice Temporarily Due to Unexpected Matters?

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