What is the replacement interval for the spark plugs in the Envision?
2 Answers
The replacement interval for the spark plugs in the Envision is 40,000 to 60,000 kilometers. The function of the spark plugs is to introduce the high-voltage pulse electricity generated by the ignition coil into the combustion chamber, using the electric spark produced by the electrodes to ignite the air-fuel mixture, completing the combustion process. Taking the 2021 Envision as an example, it is a midsize SUV with the following dimensions: length 4694mm, width 1839mm, height 1686mm, wheelbase 2750mm, and a fuel tank capacity of 66 liters. The 2021 Envision features a MacPherson strut front suspension and a multi-link rear suspension. It is equipped with a 1.5L turbocharged engine that delivers a maximum horsepower of 169PS, a maximum power of 124kW, and a maximum torque of 250Nm, paired with a 7-speed dual-clutch transmission.
From my understanding, the spark plug replacement interval for the Envision typically falls between 60,000 to 100,000 kilometers, depending on the model year and engine type. As someone who frequently works with various vehicles, I've noticed that Buick models often use platinum or iridium spark plugs which have extended service life - they can potentially last over 80,000 km. However, if the engine frequently operates in urban stop-and-go traffic with heavier loads, the replacement interval should be shortened. I also recommend regular inspection of ignition performance. Symptoms like sudden fuel consumption increase or engine vibration during cold starts could indicate worn spark plugs. Delayed replacement may lead to reduced ignition efficiency, unstable engine output, and in severe cases, catalytic converter damage - ultimately costing more for major repairs. Don't procrastinate too much; just follow the maintenance manual recommendations. Preventive maintenance keeps your vehicle running smoother in the long run.
