Which Gear is the Forward Gear?

What is Semi-Synthetic Engine Oil?

Semi-synthetic engine oil is actually a blended oil, formulated by mixing fully synthetic base oil and mineral oil in a certain proportion. This allows semi-synthetic oil to perform closer to fully synthetic oil while maintaining a more moderate price, serving as a transitional product between mineral oil and fully synthetic oil. Engine oils in common use can be categorized into three main types based on their base oils: mineral oil, semi-synthetic oil, and fully synthetic oil. The primary difference among these three types lies in the base oils used. More details are as follows: 1. Mineral oil is derived from the lower-quality residual materials after petroleum refining, processed into base oil through hydrocracking. Its biggest advantage is low cost, making it the most widely used and affordable option, though it offers the poorest lubrication performance. 2. Fully synthetic oil is made from high-quality raw materials such as natural gas, olefins, soft wax, and premium mineral oil, processed using advanced synthetic technologies like PAO, XVHl, VHV, GTL, and XTL. Due to the superior raw materials and technology, fully synthetic base oils outperform mineral oils in longevity, low-temperature fluidity, oxidation resistance, high-temperature shear resistance, noise reduction, and cleanliness, albeit at a higher price. 3. Semi-synthetic oil, as mentioned, is a blend of fully synthetic base oil and mineral oil in specific proportions, offering performance closer to fully synthetic oil at a more moderate price, acting as a bridge between mineral and fully synthetic oils. 4. Naturally aspirated engines can use any type of oil, whereas turbocharged engines require semi-synthetic or fully synthetic oil due to their higher demands on oil quality. The choice should be made based on actual conditions.

19

0

Share

How to remove the spare tire of Q3?

Open the trunk of the car, lift the luggage mat to see the spare tire, and then unscrew the fixing bolt to remove the spare tire. The following is a related introduction to the Audi Q3: 1. The Audi Q3 uses two engines in total, one is a 1.4L turbocharged engine, and the other is a 2.0L turbocharged engine. The 1.4L turbocharged engine has the model code EA211-DJS, with a maximum power of 110kW and a maximum torque of 250 N·m. The maximum torque speed of this engine is 1750 to 3000 rpm, and the maximum power speed is 5000 to 6000 rpm. This engine is equipped with direct injection technology and uses an aluminum alloy cylinder head and block. It is paired with a 7-speed dual-clutch transmission. 2. The 2.0L turbocharged engine has the model code EA888-DKV, with a maximum power of 137kW and a maximum torque of 320 N·m. The maximum torque speed of this engine is 1600 to 4000 rpm, and the maximum power speed is 5000 rpm. This engine is equipped with hybrid injection technology and uses an aluminum alloy cylinder head and a cast iron block. It is paired with a 7-speed dual-clutch transmission. 3. The Audi Q3 has both front-wheel-drive and four-wheel-drive models. The four-wheel-drive models are equipped with a full-time four-wheel-drive system and a multi-plate clutch central differential.

13

1

Share

Where is the cabin air filter located in the Outlander?

Outlander's cabin air filter is located behind the glove box. The cabin air filter can absorb dust particles, alleviate respiratory discomfort for passengers, provide a more comfortable driving experience, and also protect the air conditioning cooling system. The Outlander is a compact SUV under GAC Mitsubishi, with exterior dimensions of 4705mm in length, 1810mm in width, and 1710mm in height, a wheelbase of 2670mm, and a minimum ground clearance of 190mm. The Outlander is equipped with a 2.0L naturally aspirated engine and a 2.4L naturally aspirated engine, featuring multi-point fuel injection and paired with a 6-speed continuously variable transmission. Its suspension system consists of a MacPherson strut front suspension and a multi-link rear suspension, with electric power steering.

9

0

Share

What is the main purpose of piston rings?

Piston rings are primarily used to seal the combustible gas mixture in the combustion chamber and scrape off excess oil from the cylinder walls. The main functions of piston rings are: 1. Sealing function: Piston rings maintain the seal between the piston and cylinder wall, minimizing gas leakage; 2. Heat conduction function: They transfer and distribute the high heat generated by combustion to the cylinder walls, helping to cool the piston; 3. Oil control function: They scrape off lubricating oil adhering to the cylinder walls and maintain normal oil consumption; 4. Support function: As piston rings move up and down in the cylinder, they prevent direct contact between the piston and cylinder, providing support.

19

5

Share

What is the displacement of the Audi Q5?

The displacement of the Audi Q5 is 2.0L. Displacement refers to the volume of fluid inhaled or discharged per stroke or cycle. The Audi Q5 is a mid-size SUV under FAW-Volkswagen Audi, with body dimensions of 4629mm in length, 1898mm in width, 1655mm and 1653mm in height, and a wheelbase of 2807mm. The Audi Q5 is equipped with a 2.0T turbocharged engine with an L-type cylinder arrangement, paired with an 8-speed automatic transmission, 6-speed manual transmission, and 7-speed dual-clutch transmission. Its suspension system features a five-link independent front suspension and a trapezoidal link independent rear suspension.

4

0

Share

Will modifying the central control wiring affect the warranty if issues arise?

Modifying the central control wiring should affect the warranty. This situation will definitely impact future warranty claims because modifying the central control inevitably involves altering related wiring. Therefore, the 4S dealership may refuse to honor the warranty on the grounds of this modification. Below is additional information: 1. Overview of the vehicle warranty: The vehicle warranty means that various components will be replaced free of charge if they are confirmed to be damaged due to quality issues rather than human factors, such as issues with the speedometer or air conditioning. The warranty period or mileage for the vehicle comes from the manufacturer's publicly announced data. Generally, it is two years or 60,000 kilometers, though some manufacturers may offer warranty mechanisms that exceed these terms. 2. Contents of the vehicle warranty: Whether domestically or internationally, the vehicle warranty does not actually mean that every component of the vehicle enjoys the same warranty service. Instead, warranties are provided on a component-by-component basis. Typically, components prone to damage or wear, such as batteries, shock absorbers, wipers, rubber parts, and audio equipment, have shorter warranty periods, while components less prone to damage, such as engine blocks, have longer warranty periods. Some manufacturers may also declare certain components, like tires, as non-warranty items. Different components have different warranty periods, so the so-called vehicle warranty period is more accurately described as the warranty period for "the component with the longest warranty period in the vehicle." Some manufacturers' extended warranties may only apply to a few very durable components, and uninformed consumers often mistakenly believe this means the entire vehicle has an extended warranty.

18

2

Share

Which Gear is the Forward Gear?

What is Semi-Synthetic Engine Oil?

How to remove the spare tire of Q3?

Where is the cabin air filter located in the Outlander?

What is the main purpose of piston rings?

What is the displacement of the Audi Q5?

Will modifying the central control wiring affect the warranty if issues arise?

Can Converting Rear Drum Brakes to Disc Brakes Pass Annual Inspection?

Will driving in the wrong direction on a service road be penalized?

What is the function of a fuel injector?

Can a car pass the annual inspection after replacing the bulbs with LED ones?