What grade of gasoline should a Focus use?
3 Answers
The Focus should use 92-octane gasoline with multi-point fuel injection, complying with China VI emission standards. The gasoline octane rating indicates the ratio of the actual gasoline's anti-knock performance to that of standard gasoline. The higher the octane number, the stronger the anti-knock performance. However, higher octane doesn't necessarily mean better - the appropriate gasoline grade should be selected based on the engine's compression ratio. Ford's vehicle lineup includes models like the Explorer, Edge, Focus, and Mondeo. The Focus is a Class A family sedan under Ford, with body dimensions of 4647mm in length, 1810mm in width, and 1468mm in height, and a wheelbase of 2705mm. The front suspension is a MacPherson strut independent suspension, while the rear suspension is a torsion beam non-independent suspension.
I also struggled with this issue when I first bought my Focus. My Ford Focus is a 2018 regular version, mainly used for city commuting. I checked the owner's manual, which clearly states to use 92 octane or higher unleaded gasoline. 92 octane is perfectly sufficient, runs smoothly, and I've never encountered any problems. Issues like knocking or engine shaking might occur only if you use fuel below the recommended grade. I suggest checking your manual first to confirm your model version, as some high-performance ST versions may require 95 octane. Don't cut corners by using lower-grade fuel - long-term engine damage isn't worth it. For daily refueling, just choose standard 92 octane from reputable gas stations. It saves costs while protecting your car. After driving for over a year, even the mechanic said it's been well-maintained during servicing.
As someone with years of car repair experience, I've seen many cases involving cars like the Focus. Engine design determines fuel requirements: most regular Focus models can use 92 octane unleaded gasoline, as the octane rating matches the compression ratio, preventing knocking and protecting the engine. Using 87 octane fuel with lower octane may cause pre-ignition and lead to malfunctions. The key lies in the model year—older versions might have higher requirements, but 90% of new Focus models run fine on 92 octane. I recommend not blindly following the trend of using expensive 95 octane fuel unless the manual specifically requires it or you frequently drive on highways pursuing peak performance. In reality, using 92 octane is worry-free and cost-effective, with lower maintenance costs and longer engine life. Remember to choose reliable branded gas stations when refueling and avoid using low-quality fuel just to save money.
