How to Choose the Right Spark Plugs for Your Car
Choosing the right spark plugs for your car might not seem like a big deal — until your car won’t start, runs rough, or guzzles more fuel than it should. Spark plugs are small but essential components that affect your engine's performance, fuel efficiency, and overall reliability.
At Peers Auto Spares, we aim to help everyday drivers make confident choices about their vehicle parts. This blog explains what spark plugs do, when to replace them, and how to choose the best ones for your specific vehicle.
What Are Spark Plugs?
Spark plugs are devices that ignite the air-fuel mixture inside your car’s engine cylinders. They create the tiny explosion that keeps your engine running smoothly. Without healthy spark plugs, your engine can misfire, stall, or run inefficiently.
Signs You Need New Spark Plugs
If you're experiencing any of the following, it's probably time to check your spark plugs:
- Hard starts or engine misfires
- Poor fuel economy
- Rough idling
- Lack of acceleration
- Check engine light (especially for misfire codes)
Helpful tip: If your spark plugs are worn, your ignition system works harder, which can also wear out your coils and affect fuel economy.
Types of Spark Plugs
There are different types of spark plugs, and choosing the right one depends on your vehicle's specifications and how you drive.
1. Copper Spark Plugs
- Least expensive
- Good conductivity
- Shorter lifespan
- Best for older vehicles
2. Platinum Spark Plugs
- Longer lifespan than copper
- Better performance and fuel efficiency
- Ideal for modern engines
3. Iridium Spark Plugs
- Most durable and efficient
- Best performance and fuel economy
- Higher price but longer-lasting
How to Choose the Right Spark Plug
To pick the correct spark plugs for your car, consider:
- Your vehicle make and model: Always check your car’s manual or use a compatibility guide.
- Driving habits: Frequent short trips may benefit from longer-lasting iridium plugs.
- Maintenance schedule: Match your spark plug choice with how often you’re willing to replace them.
Not sure which spark plugs fit your car? Our team at Peers Auto Spares can help you find the right match for your vehicle.
How Often Should You Replace Spark Plugs?
Replacement depends on the type:
- Copper: Every 30,000 km
- Platinum: Every 60,000 – 80,000 km
- Iridium: Every 100,000 – 120,000 km
Other Parts to Check During Spark Plug Replacement
When replacing spark plugs, it’s a good time to check:
- Air filter – A clogged air filter can reduce combustion efficiency.
- Fuel filter – Clean fuel helps your plugs perform better.
- Oil filter – Keeps your engine running cleaner overall.
Shop air filters, fuel filters, oil filters, and spark plugs at Peers Auto Spares for quality you can trust.
Final Thoughts
The right spark plugs improve your vehicle's performance, reduce emissions, and save you money at the pump. Whether you're doing DIY maintenance or buying parts for a service, start with the right information — and the right supplier.
At Peers Auto Spares, we stock high-quality spark plugs for most makes and models. Visit our online store or stop by in person and we’ll help you choose the perfect fit.
Keywords for SEO: spark plugs South Africa, best spark plugs for car, when to replace spark plugs, iridium spark plugs, copper spark plugs, Peers Auto Spares, buy spark plugs online, air filter, fuel filter, oil filter