Why do Volkswagen cars require 95-octane gasoline?
2 Answers
Volkswagen cars use 95-octane gasoline because most models in Volkswagen's lineup are equipped with turbocharged engines. The turbocharger performs more powerfully during high-speed driving, thus requiring strict fuel specifications. Compared to 92-octane gasoline, 95-octane has better anti-knock properties, making it more suitable for Volkswagen vehicles. Below is an introduction to gasoline octane ratings: 1. Definition of gasoline octane rating: It represents the octane number of gasoline. For example, 95-octane gasoline consists of approximately 95% isooctane and about 5% n-heptane. 2. Anti-knock properties of gasoline: Since isooctane has good anti-knock properties while n-heptane performs poorly in this aspect, a higher octane rating indicates better anti-knock performance of the gasoline.
I've been driving a Volkswagen for over ten years and have always insisted on using 95-octane gasoline because that's what the manufacturer recommends. When I bought the new car, the manual clearly stated that higher-grade fuel should be used to ensure the engine runs efficiently. Without 95-octane, the car would jerk when climbing hills or accelerating, feeling unsteady like engine knocking. Over time, I've also noticed that fuel consumption is actually more economical, saving money per kilometer. As for why Volkswagens are like this, I think it's because their engine design leans towards high performance, with a higher compression ratio, making lower-octane gasoline prone to causing issues. Of course, if I accidentally fill up with 92-octane, I make sure to switch it out immediately to avoid carbon buildup damaging the engine. In short, using 95-octane makes driving comfortable and worry-free, with lower maintenance costs.
