What is the Function of a Limited Slip Differential?

What Are the Effects of Excessive Carbon Deposits in Cars?

The effects of excessive carbon deposits in cars include: 1. A decrease in the pressure within the engine cylinders, causing the vehicle to shake when idling. Due to interruptions when the air-fuel mixture enters the combustion chamber, the engine's efficiency is reduced; 2. Affecting the ignition quality of the spark plugs, and may even lead to failure to ignite; 3. The oxygen sensor cannot accurately detect the condition of the exhaust gases, leading to excessive engine emissions and the release of more toxic gases such as PM2.5. Carbon deposits are residues formed from the incomplete combustion of unsaturated olefins and gums in lubricating oil and fuel under high temperatures during engine operation. These residues accumulate in various parts of the system instead of being expelled with the exhaust gases, forming a black, coked substance.

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What is the function of engine oil?

Engine oil functions: 1. Lubrication and friction reduction: Forms an oil film between two sliding components to prevent friction during operation, ensuring smooth movement; 2. Cleaning and dispersion: High-quality oil can flush away surface contaminants on parts through oil flow, adsorb tiny metal debris in the engine, and then scrape it into the oil pan via the piston oil ring; 3. Cooling: The engine generates high temperatures during operation. When oil reaches these areas, it absorbs heat and carries it away, aiding in component cooling; 4. Sealing and leakage prevention: Forms a seal between the piston rings and pistons via an oil film to prevent combustion exhaust from entering the crankcase; 5. Rust and corrosion prevention: High-quality oil adheres to component surfaces, protecting them from contact with air, acidic substances, and harmful gases, thus safeguarding the engine from corrosion by atmosphere and water.

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What are the precautions for changing car engine oil?

Precautions for changing car engine oil include: 1. Choose engine oil based on the engine's requirements. Do not use high-grade oil in lower-performance engines, nor low-grade oil in high-performance engines. Select oil that matches the engine specifications. 2. Opt for multi-grade oil, which offers advantages such as fuel economy, extended service life, and high efficiency, providing better protection for the engine. 3. The oil level should be slightly below the mark on the dipstick. Excessive oil can increase crankshaft rotation resistance and reduce engine output power. 4. Select oil with different viscosity based on the engine's operating conditions. If the engine is in good condition and the seasonal temperature is low, use oil with lower viscosity. If the engine is severely worn and the seasonal temperature is high, choose oil with higher viscosity.

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How is the quality grade of engine oil classified?

Engine oil quality grades are classified according to API standards. API engine oils are divided into two categories: 1. The "S" series represents oils for gasoline engines; 2. The "C" series represents oils for diesel engines. The oil grade levels are classified as SA, SB, SC, SD, SE, SF, SG, SH, SJ, SL, SM, and SN. The further the letter is in the alphabet, the higher the grade. Engine oil is a lubricant for engines, consisting of base oil and additives, with base oil being the main component. The functions of engine oil include: 1. Cooling and temperature reduction; 2. Sealing and leak prevention; 3. Cleaning and purification; 4. Shock absorption and buffering; 5. Lubrication to reduce wear; 6. Rust and corrosion prevention; 7. Protection of components.

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Does Engine Oil Affect Fuel Consumption?

Engine oil affects fuel consumption. It provides good lubrication for the engine, reducing friction, cleaning, buffering, and sealing. Poor lubrication from engine oil increases the engine's motion resistance, leading to higher fuel consumption. Therefore, engine oil not only impacts fuel consumption but also affects the engine's lifespan. It is recommended to change the engine oil every 5,000 kilometers. Over time, engine oil degrades, reducing viscosity and lubrication efficiency, increasing friction. Prolonged use of degraded oil can cause severe engine wear, enlarging the gaps between moving parts, resulting in abnormal engine noises that worsen with continued wear.

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What to Do When Engine Oil Pressure is Insufficient?

Solutions for insufficient engine oil pressure: 1. Insufficient oil storage causing low oil pressure, solution: top up the oil; 2. Oil sensor, pressure gauge, or circuit malfunction leading to low oil pressure, solution: inspect related components and repair or replace them; 3. Oil thinning and leaking from the friction gaps of the engine, resulting in low oil pressure, solution: change the oil or inspect the cooling system; 4. Dirty or viscous oil preventing the oil pump from sucking or pumping oil, causing low or no oil pressure, solution: replace with new oil; 5. Oil pipe leakage, oil pump damage, or excessive wear of its components, solution: inspect and repair.

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What is the Function of a Limited Slip Differential?

What Are the Effects of Excessive Carbon Deposits in Cars?

What is the function of engine oil?

What are the precautions for changing car engine oil?

How is the quality grade of engine oil classified?

Does Engine Oil Affect Fuel Consumption?

What to Do When Engine Oil Pressure is Insufficient?

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