Which Cars Are Suitable for Using 98 Octane Gasoline?

2 Answers
StJaxon
08/29/25 6:00am
98 octane gasoline is suitable for high-end luxury cars and high-performance sports cars, and is recommended for vehicles with an engine compression ratio of 9.5 or higher. It can enhance engine power and reduce fuel consumption. Compared to 92 and 95 octane gasoline, the production of 98 octane gasoline requires higher technical and equipment standards. Below is an introduction to gasoline octane ratings and the advantages of 98 octane gasoline: Introduction to Gasoline Octane Ratings: The octane rating of gasoline represents its octane number. 98 octane gasoline consists of approximately 98% isooctane and about 2% n-heptane. Since isooctane has better anti-knock properties while n-heptane has poorer anti-knock properties, a higher octane rating indicates better anti-knock performance. 98 octane gasoline offers strong anti-knock properties and high combustion value, providing more powerful performance. Advantages of 98 Octane Gasoline: The advantages of 98 octane gasoline can be summarized as 'two highs and two lows': higher anti-knock properties and better performance, along with lower harmful substances in the gasoline and reduced exhaust emissions.
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Annabeth
09/11/25 3:41am
98-octane gasoline is typically suitable for vehicles with high compression ratios or high-performance engines, such as sports cars, high-performance sedans, or turbocharged models from brands like BMW, Mercedes-Benz, or Porsche. These vehicles are originally designed to require high-octane fuel to prevent engine knocking, improve combustion efficiency, and ensure smoother driving. For regular family cars like those from Volkswagen or Toyota with compression ratios below 10:1, using 92 or 95-octane gasoline is completely sufficient—there's no need to spend extra on 98-octane. I often see sports car enthusiasts on the street who opt for 98-octane mainly because it unlocks a more aggressive acceleration feel, especially during high-speed or track driving, where engine responsiveness improves. However, don’t upgrade blindly—always check the vehicle’s manual, or you’ll waste money and risk damaging the car. High-octane fuel is standard for high-performance vehicles, but for daily commuting, it’s not cost-effective. During regular maintenance, checking the compression ratio and engine health is key.
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