Parts for your 2017 Subaru Forester-Spark plugs

Spark Plugs on the 2017 Subaru Forester: What You Need to Know

The 2017 Subaru Forester definitely has spark plugs as a crucial part of its engine. Like most petrol-powered vehicles, the spark plugs play a key role in making the engine run smoothly and efficiently. Spark plugs are small but mighty components that work inside the combustion chamber of each cylinder. Their job is to ignite the air-fuel mixture, which powers the engine. Without properly functioning spark plugs, the engine would misfire, lose power, or just not start at all.

So why are spark plugs important for the 2017 Subaru Forester? Well, this vehicle typically comes with a petrol engine - such as the 2.5-litre four-cylinder boxer engine - which relies on spark plugs to ignite the fuel inside the cylinders. The spark plug generates a spark at the exact right moment, causing the fuel to combust and push the piston down. This combustion cycle repeats thousands of times per minute to keep the vehicle moving. Without spark plugs, the engine would be completely inoperable because petrol engines depend on an electric spark to ignite the fuel.

When it comes to looking after the spark plugs on a 2017 Subaru Forester, regular maintenance is the key to keeping everything running well. Over time, spark plugs can wear out, get fouled with deposits, or even crack. These issues can cause the engine to run rough, lose fuel efficiency, or produce more emissions. For that reason, Subaru recommends inspecting and replacing spark plugs at certain intervals - usually around every 60,000 to 100,000 kilometres, depending on the exact model and type of spark plug fitted.

Replacing spark plugs is a pretty straightforward job, but it's important to use the right type and specification for the Forester. Subaru often fits iridium or platinum spark plugs in their engines, which last longer and perform better than standard copper plugs. Iridium plugs are especially popular because they offer consistent sparking and durability, helping the engine start easier and burn fuel more cleanly. Using the recommended type ensures you get optimal performance and fuel economy from your Forester.

When doing a spark plug change, it's best to have the vehicle serviced by a professional or someone who knows how to handle the engine properly. Incorrect torque settings when tightening the plugs or using the wrong gap size can lead to damage or misfires down the track. The spark plug gap is the tiny space between the centre and ground electrode, and it's crucial this stays exactly as Subaru specifies for the Forester's engine.

Besides replacement, keeping the spark plugs clean and free from deposits can also help the engine breathe better. If a plug shows signs of carbon buildup or oil fouling, it's often a symptom of another underlying issue like poor fuel combustion or oil leakage. Getting these problems sorted quickly can save a heap of headaches later and save on fuel costs.

The benefits of maintaining spark plugs in the 2017 Subaru Forester extend beyond just engine performance. Well-maintained spark plugs contribute to lower emissions and better fuel efficiency, which means fewer trips to the bowser and a smaller footprint on the environment. They also aid in smoother starts on colder mornings and less engine knocking or hesitation during acceleration.

If you notice symptoms like rough idling, difficulty starting, decreased fuel economy, or engine misfires, it's a good idea to check the spark plugs. While some drivers might be tempted to leave this part for later, spark plugs are pretty affordable and simple to replace, making it a worthwhile investment for keeping the Forester in tip-top shape.

Ultimately, if a 2017 Subaru Forester owner wants their car to deliver reliable and efficient performance, staying on top of spark plug maintenance is non-negotiable. Paying attention to the condition of these small components each service interval ensures the engine fires just right, giving peace of mind on every trip, whether it's a city run or a weekend adventure through the bush.