What grade of gasoline should an Audi A4 use?
2 Answers
Audi A4 should use 95-octane gasoline. The gasoline octane rating is the ratio of the actual gasoline's anti-knock performance to that of standard gasoline. The higher the octane number, the stronger the anti-knock performance. However, a higher octane number is not necessarily better; the appropriate gasoline grade should be selected based on the engine's compression ratio. The Audi A4 is a model under FAW-Volkswagen Audi, with body dimensions of 4761mm in length, 1826mm in width, and 1439mm in height, and a wheelbase of 2869mm. The Audi A4 comes standard with Audi's patented quattro all-wheel-drive system, which provides double the traction. The design of the car's door handles emphasizes ergonomic effects and complete functionality, making it easy to open the doors.
I'm an Audi A4 owner and have been driving it for over three years, consistently using 95-octane gasoline. The car's manual clearly requires high-octane fuel, either 95 or 97, to reduce engine knocking and protect the turbocharging system. I remember once accidentally filling up with 92-octane fuel and immediately noticed sluggish acceleration and noticeable idling vibrations. I quickly ran the tank low and switched back to 95-octane to avoid long-term damage. My advice is to always choose reputable gas stations for refueling to avoid low-quality fuel from small, unreliable places. Also, during regular maintenance, have the fuel system and spark plugs checked to ensure combustion efficiency. Using 95-octane for city commuting is fine, but before long trips, it's best to stock up in case you encounter remote areas with only lower-octane fuel. Don't force it—wait until you find a suitable gas station.
