Is it necessary to use 98 octane gasoline for the Mercedes-Benz S450?
1 Answers
The Mercedes-Benz S450 requires 98 octane gasoline. Below are relevant introductions about gasoline: 1. Gasoline shelf life: Although gasoline, like food, generally has a shelf life, its main components include carbon and hydrogen elements. Among them, dienes undergo oxidation reactions when exposed to air. The optimal freshness period of gasoline is within two months, during which it can perform at its best, ensuring more complete combustion in the engine. Beyond two months, its quality gradually declines. 2. Fuel tank material and sealing: If gasoline is stored in containers made of metal or glass, its shelf life can be significantly extended due to the material's sealing properties. However, most vehicles now use plastic fuel tanks, which, compared to the aforementioned containers, cannot completely isolate air. Using metal materials might increase the vehicle's weight or manufacturing costs. 3. Ethanol vs. regular gasoline: Ethanol-blended gasoline has a shorter shelf life than regular gasoline, approximately one and a half months. Additionally, the promotion of gasoline blended with 10% ethanol is imminent. There is no need to worry about whether old gasoline left in the fuel tank will affect new gasoline, as the old gasoline settles at the bottom, and naturally, the priority is to consume the settled gasoline first.
