Should You Still Apply the Handbrake When Shifting to P in an Automatic Transmission?

Can boiled water be used as a substitute for battery water?

Boiled water cannot be used as a substitute for battery water because it contains ions, which can increase the self-discharge of the battery. You can add battery fluid or distilled water instead. Battery water can be replaced with purified water: 1. Definition of battery water: Battery water, also known as electrolyte, is a dilute sulfuric acid solution made from distilled water and sulfuric acid. It reacts with the plates in the battery to facilitate charging and discharging. 2. Overview: Battery water is typically used only in lead-acid batteries. There are two types of battery water: one is supplementary acid solution, and the other is purified or distilled water. High-quality lead-acid batteries are mostly maintenance-free and may not require additional fluid. Electric vehicles generally use maintenance-free lead-acid batteries. 3. Mixing ratio: Battery water is prepared by mixing specialized sulfuric acid with distilled water in a certain proportion, with a density usually ranging from 1.24 to 1.30 grams per cubic centimeter. The specific gravity is 12.75-12.85G/CM3 of sulfuric acid mixed with pure water. If the water in the battery is depleted during use, simply add pure water and charge the battery.

11

1

Share

What is the difference between AT and MT transmissions?

Transmission AT stands for automatic transmission, while MT stands for manual transmission. The following are detailed introductions: 1. Automatic transmission is developed relative to manual transmission: The automatic transmission can automatically shift gears based on the vehicle speed and engine RPM. 2. The difference in composition between MT and AT: MT, also known as manual transmission, requires the driver to manually shift the gear lever to change the gear meshing device inside the transmission, which is more fuel-efficient; AT automatic transmission consists of a torque converter, planetary gear transmission, and control mechanism. 3. The working principles of MT and AT: (1) MT working principle: The pump wheel and turbine are a working pair, similar to two fans placed opposite each other. The wind blown by one fan will drive the blades of the other fan to rotate, with the wind serving as the medium for kinetic energy transmission. (2) AT does not require a clutch to shift gears, has fewer gear changes but larger variations, and provides smooth connections, making it easier to operate and more convenient for the driver.

16

3

Share

How Often Should BMW Tires Be Replaced?

BMW tires generally need to be replaced every 50,000 kilometers, but the replacement interval for car tires depends on various factors. For drivers with good driving habits, tires typically need to be replaced every 3-5 years or after driving 60,000-80,000 kilometers. If the vehicle is frequently driven under harsh conditions, such as on gravel roads, in heavy traffic, or with frequent hard braking and sharp turns, the replacement interval will be shorter. More details are as follows: Tire Aging: The main material of tires is rubber, which naturally ages over time. Signs of aging include hardening of the tire and the appearance of small cracks on the sidewalls. Natural aging usually occurs within 4-5 years. Tires that have been in use for 5 years should be replaced promptly to avoid the risk of blowouts. Tire Wear: Monitor the wear condition of the tires. If the tires are severely worn and the tread pattern is level with the wear indicators, they should be replaced immediately. Otherwise, braking on wet or slippery roads will become difficult, increasing the risk of losing control of the vehicle. Driving on rough roads with excessively worn tires also raises the likelihood of a blowout.

2

5

Share

What is the wheelbase of the new 3 Series standard wheelbase version?

The wheelbase of the new 3 Series standard wheelbase version is 2851 mm, with length, width, and height measuring 4719 mm, 1827 mm, and 1459 mm respectively. The new BMW 3 Series is equipped with three engines: a low-power 2.0-liter turbocharged engine, a medium-power 2.0-liter turbocharged engine, and a high-power 2.0-liter turbocharged engine. Below are the details of the BMW 3 Series: 1. The low-power 2.0-liter turbocharged engine has a maximum power of 115 kW, a maximum torque of 250 Nm, a maximum power speed range of 4500 to 6500 rpm, and a maximum torque speed range of 1250 to 4000 rpm. 2. The medium-power 2.0-liter turbocharged engine has a maximum power of 135 kW, a maximum torque of 300 Nm, a maximum power speed range of 5000 to 6000 rpm, and a maximum torque speed range of 1350 to 4000 rpm. 3. The high-power 2.0-liter turbocharged engine has a maximum power of 190 kW, a maximum torque of 400 Nm, and a maximum power speed range of 5000 to 6500 rpm.

16

5

Share

What is the fuel tank capacity of the Audi Q3 in liters?

Currently, there are 6 available models of the Audi Q3 on sale. Among them, the quattro version has a fuel tank capacity of 62.5 liters, while other versions have a fuel tank capacity of 60 liters. This data is published by the automobile manufacturer, and owners who have purchased an Audi Q3 can also check it on the vehicle's configuration sheet. The fuel grade for the Audi Q3 is 95 octane. The quattro version has a fuel consumption of 7.5L per 100 kilometers, allowing a full tank to travel up to 800KM. Other versions have a fuel consumption of 6.7-6.8L per 100 kilometers, enabling a full tank to travel between 882-896KM. During daily driving, it is essential to always monitor the remaining fuel in the tank. This is typically observed through the fuel gauge inside the vehicle. If there are no other issues, the fuel level will accurately reflect on the gauge. The fuel gauge on the dashboard usually has 5 to 6 segments. It is advisable to refuel when there are about 2 segments left to avoid running out of fuel midway. During actual refueling, the amount of fuel might exceed the calibrated capacity. This is because the fuel tank capacity specified by the manufacturer is measured from the bottom of the tank to the safe limit. There is additional space from the safe limit to the tank opening, which is designed to accommodate fuel expansion due to temperature increases without causing overflow. If fuel is added up to the tank opening during refueling, the actual amount of fuel filled may exceed the calibrated tank capacity.

7

2

Share

Can 0W40 engine oil be used in summer?

0W40 engine oil can be used in summer. Here are the specific details about the engine oil: 1. Usage range and advantages of 0W40 engine oil: Whether in low or high temperatures, 0W40 engine oil has a higher viscosity, which provides excellent protection for the engine. Therefore, 0W40 engine oil is suitable for all seasons. The number 40 after the 'W' indicates the oil viscosity at 100°C. 2. Engine oil can be classified by viscosity grade or by quality grade: The best quality is fully synthetic oil, followed by semi-synthetic oil, and lastly mineral oil. Additionally, the name of the engine oil variant will indicate its viscosity grade at both high and low temperatures. The number before the 'W' represents the oil's viscosity at low temperatures, with a smaller number indicating higher viscosity. The number after the 'W' refers to the viscosity index at high temperatures, where a larger number indicates higher viscosity and better protective effects of the oil.

15

2

Share

Should You Still Apply the Handbrake When Shifting to P in an Automatic Transmission?

Can boiled water be used as a substitute for battery water?

What is the difference between AT and MT transmissions?

How Often Should BMW Tires Be Replaced?

What is the wheelbase of the new 3 Series standard wheelbase version?

What is the fuel tank capacity of the Audi Q3 in liters?

Can 0W40 engine oil be used in summer?

What is the Difference Between Wheel Balancing and Wheel Alignment?

What Causes the Jerking in Corolla Hybrid?

How to Clean and Disinfect Car Air Conditioning?

Can motorcycles be equipped with ETC?