What does a630fsi mean?

[MartinLynn]

a630fsi refers to a 2.5L direct fuel injection engine. Here is some relevant information: 1. Direct fuel injection: Direct fuel injection is a technology that injects fuel directly into the cylinder to mix with the intake air. The advantages of direct fuel injection include low fuel consumption, high power, and a high compression ratio of up to 12. Compared to conventional engines of the same displacement, the power and torque are increased by 10%. 2. Audi A6: The Audi A6 is a luxury car produced by Audi, available in both sedan and station wagon models. The dimensions of the car are 4940mm in length, 1890mm in width, and 1470mm in height, with a wheelbase of 2924mm. It is equipped with a Multitronic continuously variable manual-automatic transmission.

[StRuby]

I just bought a used Audi and spent a long time researching before figuring out what 'A6 30FSI' means. Simply put, it's the model code for the older generation Audi A6, specifically referring to the version equipped with the 30FSI engine. The '30' represents the power level, not the displacement. It actually comes with a 2.5-liter V6 naturally aspirated engine. FSI technology is like precision engineering inside the engine - it atomizes gasoline more finely for more complete combustion. This car drives exceptionally smooth. Although its 190 horsepower can't match today's turbocharged cars, it's sufficient for overtaking in the city and maintains excellent stability during highway cruising. During maintenance, pay attention to the fuel injectors as they tend to clog easily. I always have the mechanic check the spark plugs during oil changes - after all, older cars need extra care. The fuel consumption is quite reasonable, averaging about 9L/100km combined, and the V6 engine's sound profile is truly pleasing to the ears.

[DeVivian]

I used to see people chatting about the A630FSI in car enthusiast groups, and it took some research to understand. This string of letters was the unique identifier for Audi's A6 model from over a decade ago. The '30' doesn't denote a 3.0L displacement but rather a power level code—the engine is actually a 2.5L naturally aspirated V6. The FSI technology is fascinating—it uses high-pressure direct injection to achieve stratified combustion in the cylinders, much like a bartender layering a cocktail. This not only improves efficiency but also reduces fuel consumption. I've driven a friend's car with this setup, and it's classic German tuning—the chassis is as solid as a tank, and the CVT transmission is so smooth you can barely feel the shifts. The downside is that carbon buildup becomes an issue as the car ages, requiring frequent high-speed runs to clean it out. Nowadays, you can find well-maintained examples on the used car market for around 40,000 to 50,000 RMB, making it a great transitional vehicle.

[DiAnastasia]

I remember studying the A630FSI when helping my father-in-law choose a car—it was actually a special model code for the older Audi A6. The '30FSI' designation refers to the version equipped with a 2.5L naturally aspirated engine, where the number '30' corresponds to the 190 horsepower power rating. FSI stands for Fuel Stratified Injection, Volkswagen Group's core fuel injection technology that ensures more complete combustion through high-pressure fuel injection. The car's biggest advantage is its smooth and quiet operation; riding in the back seat is as comfortable as being on a high-speed train. During maintenance, special attention should be paid to the fuel injectors, as they are the most prone to issues—replacing a set of original parts can cost over 2,000 yuan. For engine oil, 5W-40 is recommended; don't skimp by using low-viscosity oil, as it's not good for older engines. Nowadays, new cars mostly come with TFSI turbocharged engines, making these naturally aspirated models more of a nostalgic choice.