What grade of fuel should a Volkswagen Tiguan use?
2 Answers
Volkswagen Tiguan should use 95-octane gasoline. Avoid overfilling the fuel tank: Overfilling the fuel tank can easily block the vent hole of the tank. Once the vent hole is blocked, the air pressure inside the tank will drop below normal, leading to poor fuel supply or even a complete failure to supply fuel. Overfilling also increases the vehicle's weight, thereby increasing fuel consumption. Additionally, gasoline can deteriorate, posing potential safety hazards. Avoid waiting for the low fuel warning before refueling: While driving, always monitor the fuel gauge. When the gauge indicates that only a quarter of the fuel remains, it's time to refuel. If the tank remains empty for too long, the temperature difference between the inside and outside can cause condensation inside the tank. This moisture can corrode the tank, degrade fuel quality, and increase the engine's workload.
My family's Tiguan has been running on 95-octane gasoline for years. This car's engine has a high compression ratio, so it needs higher-grade fuel. While 92-octane isn't completely unusable and can work for short emergency trips, long-term use may lead to carbon buildup and engine knocking. Always check the label inside the fuel filler cap before refueling—it clearly states 95-octane or above. Turbocharged cars are delicate; only with premium fuel can you ensure stable power output and slightly better fuel efficiency. Last time when I couldn't find a 95-octane station during a road trip in northwest China, I reluctantly used 92-octane for about 200 kilometers—the acceleration felt noticeably sluggish, with engine RPM rising but vehicle speed lagging behind.
