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Should I Use 92 or 95 Octane Gasoline During the Break-in Period of a New Car?

3 Answers
MacFaith
09/04/25 7:20am
During the break-in period of a new car, the fuel used should be added according to the recommendations on the fuel tank cap. If it states that gasoline with an octane rating of 95 or higher is required, the owner must not use 92 octane gasoline. Using fuel with a lower octane rating may cause engine knocking, and prolonged use can lead to severe carbon buildup in the engine. Precautions for refueling a new car: 1. Always refuel promptly after purchasing a new car. Generally, the fuel tank does not contain much fuel at the time of delivery, so it is necessary to refuel immediately after taking delivery. 2. In addition to refueling, it is important not to overfill the tank when refueling a new car. If the tank contains too much fuel, it can affect the fuel float and sensor. An overfilled fuel tank may cause fuel to splash out during driving, and gasoline splashing onto the car body can corrode the paint.
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LouisRose
09/16/25 8:09am
Using 95-octane gasoline during the break-in period is better for new cars. When I drove my new car, I used 95-octane for the first 2,000 kilometers. Its higher octane rating reduces engine knocking risks and makes piston operation smoother. During break-in, engine components are still wearing in, and higher-grade gasoline ensures more even combustion to prevent carbon buildup, which benefits long-term performance. Manuals usually recommend 92 or 95, but if given the choice, 95 provides better protection for new mechanical parts. Remember to avoid sudden acceleration and overloading, as these practices combined with proper fuel selection make break-in safer. In the long run, while spending slightly more on fuel, it prevents much costlier repairs, making it worthwhile. From my experience with several cars, prioritizing maintenance during break-in is far more economical than saving on fuel. Though fuel prices fluctuate, a new car's health comes first.
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LeCarson
10/30/25 8:44am
My opinion is that using 92-octane gasoline during the break-in period of a new car is sufficient, which can save a lot of expenses. If the manual says to use 92-octane, just follow it and don't try to be smart by using more expensive fuel. The core of the break-in period is driving habits: avoid prolonged high-speed driving and sudden acceleration, which have a greater impact than the fuel grade. 95-octane gasoline has higher octane to prevent knocking, but new car engines are actually designed to be very durable, and 92-octane can handle it just fine. My car usage habit is cost-effective, and 92-octane is enough for daily break-in without worries. Regarding fuel consumption, it's naturally higher during the break-in period, and using 95-octane won't save much fuel but will cost more. The key is to regularly check the engine oil condition and not forget about it. Many friends worry about fuel grades, but they should focus more on proper driving methods. A car is just a tool; don't over-serve it.
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