When it comes to engine health and vehicle performance, spark plugs often don’t get the credit they deserve. These small components play a critical role in your engine’s efficiency, power output, and fuel consumption. Whether you’re running a workshop, fleet, or simply looking to improve your vehicle’s performance, understanding how spark plugs work can help save you money and prevent costly engine repairs down the line.

What is the Function of a Spark Plug?

Spark plugs are small parts in your car’s engine that make a tiny spark. This spark lights up the petrol and air mixture inside the engine. When that mixture burns, it gives the engine power to keep your car moving.

How do Spark Plugs Work?

When you start your car, the spark plug gets electricity and makes a spark between its two tips. This happens at the perfect time to burn the petrol and air inside the engine. If the spark is strong and clean, your engine runs smoothly and uses less fuel. But if the spark is weak or dirty, your car might struggle to start, use more petrol, or not drive properly.

How Faulty Spark Plugs Affect Engine Performance

Spark plugs play a big role in how well your engine runs. If they’re worn out or not working properly, you might notice:

• Engine misfires
• Slow acceleration
• Rough idling
• Poor throttle response
• Difficulty starting

Tips to Keep Your Engine Running Smoothly

Now that you know what to watch for when your spark plugs are giving trouble, our experts suggest the following to get the best out of your engine:

• Use high-quality, OE-approved spark plugs
• Replace them as often as your car’s manufacturer recommends
• Don’t use aftermarket plugs unless your mechanic or manual says it’s safe

In South Africa’s hot and dusty conditions, top-quality spark plugs help your car stay strong and save fuel.

Maintenance Tips to Maximise Spark Plug Lifespan

• Check your car’s spark plus every 20,000–30,000 kilometers, or as the manufacturer recommends.
• We advise you to use only premium spark plugs.
• Pay attention to misfire codes and engine warning lights.
• Check for carbon buildup and repair any gaps in the plugs.
• Make spark plug inspection part of your regular maintenance

Your One-Stop Shop for Premium Spark Plugs, Nationwide

At Diesel Electric Automotive, we stock a wide range of premium spark plugs from trusted brands, backed by expert advice and nationwide availability. Whether you’re servicing a passenger car, LDV, or heavy-duty vehicle, we’ve got the right plug for the job.

With branches in Johannesburg, Vereeniging, Springs and Bloemfontein, you can shop the best deals in-store or online now. 

Visit us in-store at our branches in Johannesburg, Vereeniging, Springs, and Bloemfontein, or open a 30-day account and enjoy instant access to a wide range of quality spark plugs, anywhere and anytime. 

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