Should Mazda CX-4 use 92 or 95 octane gasoline?
2 Answers
Both 92 and 95 octane gasoline are acceptable. The manufacturer of Mazda CX-4 recommends using 92 octane or higher. 95 octane fuel has better anti-knock performance. It's important to note that if the vehicle requires high-octane fuel but accidentally uses lower-octane fuel, the engine may experience knocking, reduced power, and increased water temperature. Differences between 92 and 95 octane gasoline: 92 octane gasoline contains 92% isooctane and 8% n-heptane, while 95 octane gasoline contains 95% isooctane and 5% n-heptane. 95 octane gasoline has advantages in power and fuel consumption compared to 92 octane gasoline because it has a higher isooctane content. How to choose gasoline for your car: For a compression ratio of 7.5-8.0, use 90-93 octane gasoline; for 8.0-8.5, use 90-93 octane gasoline; for 8.5-9.0, use 93-95 octane gasoline; and for 9.5-10.0, use 95-97 octane gasoline.
I've been driving a Mazda CX-4 for two years and often struggle with whether to save money when refueling at gas stations. I've tried both 92 and 95 octane, but ultimately found 92 octane to be more cost-effective. With soaring fuel prices, 92 octane is a few yuan cheaper per liter. I commute 1,500 kilometers monthly, saving over 200 yuan—enough for a nice family meal. The CX-4's engine might be slightly optimized for 95 octane in terms of power, but for my daily city driving, it's perfectly adequate during traffic light starts or jams. I don't notice major issues, just a slightly slower acceleration. Friends warn that 92 octane could cause carbon buildup or engine damage, but with regular maintenance—like cleaning the fuel injectors every 5,000 kilometers—the engine runs smoothly. It boils down to personal needs: if you're not a speed demon, choosing 92 octane is a practical way to save. I've also tried different gas stations and found Sinopec's 92 octane to be consistently reliable.
