What is the difference between 95 and 98 gasoline for Mercedes-Benz E300?
2 Answers
The biggest difference between 95 and 98 gasoline lies in the amount of isooctane they contain and their anti-knock properties. The Mercedes-Benz E300 requires the use of 95 gasoline, but 98 gasoline can also be used. Below are the relevant details: 1. 95 gasoline: 95 gasoline is composed of 95% isooctane and 3% n-heptane. High-compression engines should use high-octane gasoline. If low-octane gasoline is used in a high-compression engine, it can cause abnormal combustion, leading to knocking, increased fuel consumption, and reduced driving power. 2. 98 gasoline: 98 gasoline refers to gasoline with an octane rating equivalent to a mixture of 98% isooctane and 2% n-heptane. 98 gasoline offers better anti-knock performance and higher power output, while also containing fewer harmful substances and producing lower exhaust emissions.
I just bought a Mercedes-Benz E300 and have been using both 95 and 98 octane fuel for over a year. The difference is quite noticeable. 95 octane is cheaper and works fine for daily city commuting, but the power feels slightly weaker, and there's occasional mild engine shudder during acceleration. As for 98 octane, it costs 1-2 yuan more per liter, but the driving experience is much smoother with quicker throttle response and effortless overtaking on highways. The engine noise is also reduced, and it seems slightly more fuel-efficient, though the price difference may not fully offset the savings. I recommend choosing based on your driving habits: if you frequently take long trips or enjoy spirited driving, 98 octane is worth the investment; for regular commutes, 95 octane is perfectly adequate. Mercedes-Benz officially states that the E300 can run on 95 octane, with 98 being an upgrade option that's better for long-term engine health. Also, remember to occasionally clean the fuel system to prevent carbon buildup from affecting performance.
