What type of spark plugs does the Classic Focus use?
2 Answers
The Classic Focus uses platinum spark plugs. The function of spark plugs is to introduce the high-voltage electricity generated by the ignition coil into the engine cylinder under the control of the engine computer, generating sparks between the spark plug electrode gaps to ignite the air-fuel mixture, thereby ensuring normal engine operation. The Classic Focus is a compact car under Changan Ford, with body dimensions of 4647mm in length, 1810mm in width, and 1468mm in height, a wheelbase of 2705mm, and a top speed of 193km/h. It features a 4-door, 5-seat sedan body structure, equipped with a 1.5L 122-horsepower L3 engine, paired with a 6-speed manual transmission.
I remember when I drove the classic Focus, I chose the Motorcraft SP-413 or NGK TR55 spark plugs recommended by the manufacturer. These nickel alloy plugs were affordable and durable. As a car owner, I suggest prioritizing the matching models to avoid haphazard replacements, as it could lead to uneven engine ignition and increased vibrations while driving. The classic models mainly refer to the Focus produced from 2004 to 2011. I usually check them every 50,000 to 60,000 kilometers to see if there’s any carbon buildup or signs of aging. Spark plugs may be small, but they’re crucial. When replacing them, pay attention to the electrode gap—if it’s too wide, it can affect startup speed. Don’t skimp on maintenance costs; proper upkeep extends the car’s lifespan and improves fuel efficiency. If you’re planning a long trip, check the spark plugs beforehand to avoid breakdowns on the road. In short, stick to original or equivalent brands and replace them regularly—these are just some small tips I’ve picked up from driving older cars.
