Understanding Car Filters – Air, Fuel, Oil (What They Do and When to Replace Them)
Your car relies on several filters to keep its systems clean and running efficiently. While they might not seem like a priority, air filters, fuel filters, and oil filters all play vital roles in engine health and performance.
At Peers Auto Spares, we know many vehicle issues can be avoided with basic filter maintenance. In this blog, we break down what each filter does, the signs they need changing, and when to replace them.
1. Air Filter
What It Does:
The air filter stops dust, dirt, and debris from entering your engine. Clean air helps your engine burn fuel efficiently and stay in good condition.
Signs It Needs Replacing:
- Reduced fuel economy
- Weak acceleration
- Dirty-looking filter
- Check engine light
Replacement Frequency:
Every 15,000 to 30,000 km or as specified in your car’s manual.
Need a new air filter? Check our wide selection of air filters designed to fit most vehicles.
2. Fuel Filter
What It Does:
The fuel filter cleans the petrol or diesel before it enters your engine. It traps dirt and rust that could damage injectors or reduce fuel pressure.
Signs It Needs Replacing:
- Engine stalling or hesitation
- Hard starts
- Poor acceleration
- Strong fuel smell
Replacement Frequency:
Every 40,000 to 80,000 km, depending on the car and driving conditions.
Keep your fuel system clean with our trusted fuel filters at Peers Auto Spares.
3. Oil Filter
What It Does:
The oil filter removes dirt and metal particles from engine oil. This helps keep the oil clean and the engine protected from wear.
Signs It Needs Replacing:
- Dirty or thick engine oil
- Loud engine noise
- Oil pressure warning light
- Regular oil change is due
Replacement Frequency:
Change the oil filter every time you change your oil — usually every 10,000 to 15,000 km.
Shop oil filters to match your oil change schedule and keep your engine protected.
Why Filter Maintenance Matters
Neglecting filters can lead to:
- Reduced engine power
- Higher fuel consumption
- Clogged fuel injectors or oil passages
- Long-term engine damage
These are low-cost parts that can prevent high-cost repairs.
Bundle and Save
Many customers choose to replace all three filters during routine servicing. You can often bundle:
- Air filter
- Fuel filter
- Oil filter
And even spark plugs
Browse our combo kits and top-quality filter brands at Peers Auto Spares. We also stock brake pads, suspension parts, and more.
Final Thoughts
Regular filter changes are one of the easiest and most affordable ways to extend your vehicle’s lifespan. By using quality filters and replacing them on time, you ensure better performance, lower maintenance costs, and peace of mind on the road.
Need help choosing filters? Our knowledgeable team at Peers Auto Spares is happy to guide you — whether you’re shopping online or visiting us in-store.
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