What grade of gasoline does the Focus use?
3 Answers
The Focus uses 92-octane gasoline. Taking the 2021 Focus as an example, it is equipped with a 1.5L naturally aspirated engine, with a maximum horsepower of 122PS, maximum torque of 153Nm, maximum power of 90kW, maximum power speed of 6500rpm, and maximum torque speed of 4500rpm. It is paired with a 6-speed manual transmission. The dimensions of the 2021 Focus are: length 4647mm, width 1810mm, height 1468mm, wheelbase 2705mm, minimum ground clearance of 190mm, and a curb weight of 1245kg.
The appropriate gasoline grade for the Focus depends on the specific model. I've driven a Focus 1.5T for three years and always go straight for 95-octane fuel, as turbocharged engines have higher compression ratios and using lower-grade fuel can easily cause knocking. My friend's older 1.6L naturally aspirated model, however, can run on 92-octane just fine. It's best to check the owner's manual or the label inside the fuel filler cap, which usually indicates the recommended grade. Using the wrong fuel can be troublesome—my mechanic says it could cause anything from minor engine vibrations to severe carbon buildup requiring fuel injector cleaning. While gas stations often run promotions these days, don't switch grades just to save a few bucks, or you might end up with repair bills that could cover half a year's fuel costs.
For daily driving a Focus, it's recommended to follow the fuel grade indicated on the fuel cap. I make it a habit to have technicians inspect the combustion chamber with an endoscope during each maintenance. The mechanic mentioned that the new Focus 1.5T performs best with 95-octane fuel to match its direct injection technology. The older naturally aspirated 1.6L version is compatible with 92-octane, but if you frequently drive long distances, it's advisable to use higher-grade cleaner fuel to protect the fuel injection system. There was a period when I opted for cheaper 92-octane fuel, and I noticeably experienced increased turbo lag and engine knocking sounds when accelerating hard. Now, I regularly fill up with 95-octane at reputable gas stations, and my fuel consumption has stabilized at around 7.2L/100km, saving about 0.5L compared to using lower-grade fuel.
