What type of gasoline is suitable for the Passat?
3 Answers
Passat should use 95-octane gasoline and must not use 92-octane gasoline. The anti-knock performance of 92-octane gasoline cannot meet the operational requirements of the Passat's engine, otherwise the engine will not function properly. It is essential to use the appropriate gasoline according to the vehicle's fuel requirements. Below are relevant details: 1. The primary function of gasoline octane ratings is to indicate anti-knock performance, which is unrelated to the quality of the gasoline itself. Higher octane ratings do not mean fewer impurities in the gasoline. 2. In fuel, the anti-knock substance is isooctane. 92-octane gasoline contains 93% isooctane. Higher octane gasoline provides better combustion stability, preventing engine malfunction due to knocking. This is why engines designed for 95-octane gasoline must never be filled with 92-octane gasoline, as it can cause damage to the engine.
I've been driving a Passat for several years and I find that using 95-octane gasoline is most suitable. Since its engine has a relatively high compression ratio, higher-octane 95 gasoline helps prevent knocking and protects the engine from damage. The manual clearly recommends 95-octane fuel—never try to save money by using 92-octane, as it may cause engine vibration and potentially damage components over time. I've occasionally tried 98-octane on the highway, which offers stronger power response, but it's too expensive and unnecessary. For daily driving, 95-octane provides the best balance of performance and cost efficiency, ensuring stable fuel economy while saving money. Always check the quality of the gas station to avoid poor-quality fuel affecting performance. Proper engine maintenance ensures longer and smoother driving—this is firsthand experience from an owner.
As a budget-conscious car owner, I opt for 95-octane fuel for my Passat. While 92-octane is cheaper per liter, it results in weaker engine performance and higher fuel consumption, ultimately costing more in the long run. 98-octane is too extravagant, only showing slightly better performance during long-distance uphill drives. After comparing different octane ratings, I found 95-octane strikes the right balance for both city commuting and long-distance travel—moderately priced with stable performance, helping avoid unnecessary maintenance costs. The owner's manual confirms 95-octane as the recommended standard, and I always choose reputable gas stations to ensure pure, water-free fuel quality. This routine keeps my car running smoothly and hassle-free.
