Why Can't the Spare Key Open the Car Door?

What is the working principle of the Dual Hybrid system?

The working principle of the Dual Hybrid system is that during startup, the hybrid power system does not engage the engine. Instead, it relies solely on the electric motor, which can instantly provide maximum torque with electricity, ensuring a smooth start. In situations where heating is required or under certain driving conditions, the engine may also operate simultaneously. Introduction to Dual Hybrid Technology: The Dual Hybrid technology (HEV technology) is a full hybrid technology. Unlike other mild hybrid technologies, it features both an engine and an electric motor as power sources. This significantly enhances power performance while greatly reducing fuel consumption. It is a technology that balances tradition and the future, effectively implementing energy-saving and emission-reduction measures, hence the name "Dual Hybrid". Characteristics of Dual Hybrid Technology: When operating continuously at high RPM, the efficiency is at its highest. Therefore, the higher the RPM, the more outstanding the engine's power performance becomes.

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What brand is the little golden man?

The little golden man refers to Rolls-Royce. Introduction to Rolls-Royce: Rolls-Royce is a British luxury car brand founded in 1906 in the UK by Frederick Henry Royce (Henry Royce) and Charles Stewart Rolls (Charlie Rolls). The cars produced by Rolls-Royce are outstanding representatives of top-tier automobiles, renowned worldwide for their luxury, and are one of the main representatives of European and American cars. The emblem of Rolls-Royce: The little golden man is Rolls-Royce. The double R logo of Rolls-Royce is the abbreviation of the two founders, Charles Stewart Rolls (Charles Stewart Rolls) and Henry Royce (Henry Royce), symbolizing the harmonious relationship between the two. At the same time, Rolls-Royce adheres to the philosophy of "taking the best that exists and making it better."

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How Many Times Is a New Vehicle Exempt from Inspection?

New vehicles are exempt from inspection 3 times. Vehicle Annual Inspection: It refers to a mandatory inspection for every vehicle that has obtained an official license plate and registration certificate, equivalent to an annual physical examination for the vehicle according to the "Technical Conditions for Motor Vehicle Operation Safety." Vehicle annual inspections can promptly eliminate potential safety hazards, encourage enhanced vehicle maintenance, and reduce the occurrence of traffic accidents. Other Vehicle Annual Inspections: For passenger vehicles used for commercial purposes, an annual inspection is required within the first 5 years; for trucks and large or medium-sized non-commercial passenger vehicles, an annual inspection is required within the first 10 years; for small and mini non-commercial passenger vehicles, an inspection is required every 2 years within the first 6 years.

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How many points are deducted for driving against traffic in a tunnel?

Driving against traffic in a tunnel results in a deduction of 6 points. Point deduction standards for driving against traffic: Driving against traffic on urban and other ordinary roads (non-motorized lanes, one-way streets) will result in a deduction of 3 points; driving against traffic on highways (ramps, toll booth exits) will result in a deduction of 12 points and may lead to the suspension of the driver's license. Circumstances considered as driving against traffic: On roads with solid dividing lines (double solid lines, single solid lines), vehicles must not cross the line under any circumstances. If a motor vehicle enters the opposite lane, it is considered driving against traffic; on roads with dashed dividing lines, vehicles may borrow the opposite lane to overtake if it is safe to do so, but if an accident occurs, the vehicle borrowing the lane will be deemed to be driving against traffic; on roads marked as one-way streets, any motor vehicle entering is considered to be driving against traffic.

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Is It Normal to Find Black Debris After Changing to Shell Engine Oil?

Finding black debris after changing to Shell engine oil is a normal phenomenon. The black substances in the oil are carbon deposits and oxidation byproducts from inside the engine. Therefore, no matter how clear the oil is initially, it will turn black after working in the engine for some time, which indicates the oil is performing its cleaning function. Engine oil has a cleaning effect: Engine lubricating oil carries away dirt and debris from friction surfaces, delivering them to the oil pan. When passing through the oil filter, these contaminants are trapped, while the clean oil continues its washing action. This cyclic process helps keep engine components clean and functioning normally. Characteristics of engine oil: Engine oil possesses lubricating properties, low-temperature operability, viscosity-temperature characteristics, oxidation resistance, and foam resistance.

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Does the Jetta VS7 Require 95 Octane Gasoline?

According to the official vehicle manual recommendation, the Jetta VS7 should use 95 octane gasoline. In addition to checking the appropriate gasoline grade in the vehicle manual, you can also find it marked on the fuel tank cap of the Jetta VS7. Typically, the gasoline grade can also be determined based on the engine's compression ratio. Vehicles with an engine compression ratio between 8.6-9.9 should use 92 octane gasoline, while those with a compression ratio between 10.0-11.5 should use 95 octane gasoline. However, with the application of new technologies, the gasoline grade cannot be solely determined by the compression ratio. High compression ratio engines can also be tuned to use lower octane gasoline because, apart from the compression ratio, other factors such as ignition timing, turbocharging technology, and Atkinson cycle technology also play a role. Generally, the higher the gasoline octane number, the higher the octane value and the better the anti-knock performance. 92 octane gasoline contains 92% isooctane and 8% n-heptane, while 95 octane gasoline contains 95% isooctane and 5% n-heptane. If the Jetta VS7 occasionally uses the wrong gasoline grade, simply switch back to the correct grade after consumption. However, long-term use of the wrong gasoline grade can have the following effects: For vehicles recommended to use lower octane gasoline, mistakenly using higher octane gasoline will not cause damage, but the increase in octane value will alter the fuel's ignition point, leading to delayed combustion in the engine. This means both the engine's power output and thermal efficiency will decrease, resulting in poorer performance. For vehicles recommended to use higher octane gasoline, using lower octane gasoline can cause engine knocking. Due to the significantly lower octane value, the gasoline's ignition point decreases, causing premature ignition during the compression stroke. If combustion occurs before the spark plug ignites during the compression stroke, resistance will arise during the upward stroke. This resistance makes the engine run very unstably. If the knocking is imperceptible, it only increases noise without obvious damage to the engine. However, noticeable knocking indicates severe engine conditions, affecting not only driving stability but also causing abnormal wear on pistons and cylinders, and in severe cases, cylinder scoring.

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Why Can't the Spare Key Open the Car Door?

What is the working principle of the Dual Hybrid system?

What brand is the little golden man?

How Many Times Is a New Vehicle Exempt from Inspection?

How many points are deducted for driving against traffic in a tunnel?

Is It Normal to Find Black Debris After Changing to Shell Engine Oil?

Does the Jetta VS7 Require 95 Octane Gasoline?

How Long Can China IV Gasoline Vehicles Still Be Used?

How Many Points Will Be Deducted for Motorcycle Modification?

Is a Wider Rear Tire More Stable for Motorcycles?

What does engine CNG mean?