What are the differences between the 2019 and 2021 Avalon models?

Has the CRV oil dilution issue been resolved?

CRV oil dilution has not been resolved. Below is a detailed introduction to the CRV oil dilution issue: 1. The 2019 CRV model has seen significant improvements, but the 1.5T engine remains the same as before, with no substantial changes. Some owners in northeastern and northwestern regions still report oil dilution and emulsification issues. The oil problem in the 2019 CRV has not been completely resolved. Honda has officially acknowledged that this engine has a fundamental design flaw. Simply replacing parts, using better oil, adjusting the scale limits, or optimizing the control program cannot fundamentally solve the problem. 2. The 2017 CR-V is equipped with a 1.5T direct-injection turbocharged engine. During the engine compression process, some gasoline adhering to the cylinder walls enters the oil pan under pressure. As the engine operates and the oil temperature rises, this gasoline evaporates and re-enters the combustion chamber for re-combustion and emission. However, if the oil temperature is low, the gasoline evaporates slowly, causing some gasoline to remain in the oil, leading to an increase in the oil level.

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Do You Need to Press the Brake When Shifting Gears in an Automatic Car While Driving?

Automatic cars do not require pressing the brake when shifting gears while driving. More information about automatic cars is as follows: 1. The engine's power is transmitted through the transmission, which is also a key factor affecting fuel consumption. Automatic transmissions consume 10% more fuel than manual transmissions. The more gears there are, the more fuel-efficient the car becomes. 2. Automatic transmissions use planetary gear mechanisms for shifting, automatically adjusting gears based on the degree of throttle pedal pressure and changes in vehicle speed. 3. The most common type is the hydraulic automatic transmission: primarily composed of a hydraulically controlled gear-shifting system, it mainly includes an automatic clutch and an automatic transmission. It can automatically shift gears according to the throttle opening and changes in vehicle speed. 4. The continuously variable transmission (CVT) consists of two sets of variable pulleys and a drive belt, belonging to a type of automatic transmission. However, it overcomes the shortcomings of conventional automatic transmissions, such as "sudden shifting," slow throttle response, and high fuel consumption. Compared to traditional automatic transmissions, it has a simpler structure and smaller size, allowing for free changes in the transmission ratio to achieve seamless shifting throughout, resulting in smoother vehicle speed changes.

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How many hours is best to charge a car battery?

It is best to charge a car battery for 10-15 hours. Here are some precautions when charging a car battery: 1. Do not completely disconnect the vehicle power: If using a charger, connect directly to the battery for charging without removing it, otherwise data loss may occur, requiring initialization, commonly known as decoding or code matching. 2. Battery warning light on: If the car battery warning light is on, it needs to be charged promptly. For a running vehicle, charge at 1500 RPM for over 60 minutes, then at over 1900 RPM for another 60 minutes or more. 3. Battery discharge: If the car is not used for a long time, the battery discharges about 1% daily. If left connected to the car, the vehicle maintains a minimum current (commonly known as 'sleep' current) of about 80mA. If there is an anti-theft alarm, it will consume additional power, generally depleting about 2~3% of the battery's charge daily.

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How long do I need to wait after jump-starting a dead car battery?

After jump-starting a dead battery, you should wait at least 30 minutes. Here are some tips for car battery maintenance: 1. Develop good in-car electricity usage habits: The most important thing for battery maintenance is to develop proper electricity usage habits. For example, avoid listening to the radio at high volume, charging phones, or using air pumps when the engine is off, as these can drain the battery. Frequent battery drainage will significantly shorten its lifespan. 2. Avoid prolonged vehicle inactivity: If the car won't be used for an extended period (e.g., 20 days or a month), either disconnect the battery cables or start the engine every two weeks and drive several dozen kilometers to maintain normal battery function. 3. Avoid connecting high-power devices directly to the battery: Many car appliances like refrigerators, vacuum cleaners, or inflators have high instantaneous power consumption. Instead of powering them directly from the battery, first start the engine before connecting these devices. This provides better protection for your battery.

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What Causes Engine Noise?

Engine noise may be caused by engine misfire, rich fuel mixture, or cold start. Below are detailed explanations of the related causes: 1. Engine misfire: Engine misfire mainly refers to one or more cylinders not functioning properly, typically manifested as: intermittent exhaust flow with noticeable pauses, severe shaking of the exhaust pipe, and a clear "popping" or thumping sound from the engine. This phenomenon is often closely related to ignition coil failure. 2. Rich fuel mixture: When the engine's fuel mixture is too rich, the symptoms include: difficulty starting the engine; poor acceleration after starting, uneven engine operation; black smoke from the exhaust pipe accompanied by popping sounds, sometimes backfiring; reduced engine power and increased fuel consumption. This is mostly related to carbon buildup or clogged filters. 3. Cold start: During a cold start, the engine's lubrication is less effective, the oil has poor fluidity and is more viscous, leading to mechanical wear noises. Additionally, during a cold start, the coolant temperature is lower, and the fuel mixture is richer, resulting in incomplete combustion that causes engine shaking and popping sounds. This is generally considered a normal phenomenon.

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How often should the spark plugs of a Levin be replaced?

The spark plugs of a Levin should be replaced every 40,000 kilometers. Methods to determine if the spark plugs are damaged: Remove the spark plugs and observe them. The condition of the spark plugs can be judged based on the following appearance colors. A normal spark plug has an insulator skirt and electrodes that appear gray-white, gray-yellow, or light brown. A properly functioning spark plug has a reddish-brown insulator skirt, with an electrode gap between 0.8-0.9mm, and no signs of electrode burning. If the spark plug has oil stains or deposits but is not damaged, it can continue to be used after cleaning off the oil and deposits. If the spark plug is severely damaged, with signs such as blistering at the top, black streaks, cracks, or melted electrodes, the cause of the damage should be identified. After troubleshooting, replace the spark plug with a new one. Additionally, if the spark plug appears black as if smoked, it indicates that the wrong heat range was selected for the spark plug, the air-fuel mixture is too rich, or there is oil leakage.

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What are the differences between the 2019 and 2021 Avalon models?

Has the CRV oil dilution issue been resolved?

Do You Need to Press the Brake When Shifting Gears in an Automatic Car While Driving?

How many hours is best to charge a car battery?

How long do I need to wait after jump-starting a dead car battery?

What Causes Engine Noise?

How often should the spark plugs of a Levin be replaced?

What Causes Engine Oil Emulsification?

Where is the cabin air filter located in the Fiat Viaggio?

What to Do When the Engine Yellow Light Flashes and Shakes?

How often should the Leiling spark plugs be replaced?