Every vehicle relies on four key filters — oil, fuel, air, and cabin — to keep everything running smoothly. These unsung heroes protect your engine, fuel system, and even the air you breathe inside the cabin. But when they clog or wear out, the signs show up quickly: higher fuel consumption, reduced performance, dirty exhaust, or even strange odours inside the car.
Staying on top of filter maintenance isn’t just about preventing breakdowns; it’s about maximising efficiency, performance, and comfort every time you drive. Let’s explore each filter, what it does, and when you should think about replacing it.
Think of oil filters as your engine’s first line of defence. They keep grit, dirt, and metallic fragments out of the motor oil, ensuring clean lubrication for every moving part.
🚨 Red flags of a clogged oil filter:
🔧 Replacement guide: Every 8,000 km, or every 5,000 km if towing/off-road.
Fuel filters make sure only clean fuel reaches your engine. Petrol and diesel filters serve the same purpose, but diesel engines demand finer filtration.
🚨 Red flags of a clogged fuel filter:
🔧 Replacement guide:
Petrol: every 20,000 km
Diesel: every 10,000–15,000 km
Engines need oxygen as much as fuel. Air filters ensure that only clean air reaches the combustion chamber.
🚨 Red flags of a clogged air filter:
Cabin filters don’t affect performance but make a huge difference in comfort. They trap dust, pollen, smoke, and other airborne pollutants before they reach your cabin.
🚨 Red flags of a clogged cabin filter:
When to Replace Your Car Filters
| Filter | Purpose | Replacement Interval | Signs of Trouble |
|---|---|---|---|
| Oil | Keeps motor oil clean | 8,000 km (5,000 km heavy use) | Low oil pressure, dirty oil, overheating |
| Fuel | Stops dirt/rust in fuel | Petrol: 20,000 km • Diesel: 10–15,000 km | Misfires, stalling, sluggish performance |
| Air | Ensures clean air for combustion | ~12 months | Poor economy, black smoke, reduced power |
| Cabin | Filters cabin air | 12–24 months | Weak airflow, odours, foggy windows |
Most car services include filter replacements, so if your vehicle is regularly serviced, you’re covered. But if you prefer DIY, filters are relatively simple to change with the right tools and quality parts.
At RedPoint, we make it easy to source the right filters for your vehicle. Whether you need oil, fuel, air, or cabin filters, we stock high-quality, affordable options designed to keep your car performing at its best.
Need help choosing the right filter? Our team is available to answer questions and make sure you get exactly what your vehicle needs.
Filters may be small, but they play a big role in keeping your car reliable, efficient, and comfortable. Staying proactive about replacements means better fuel economy, fewer emissions, and a smoother, safer drive.
At RedPoint, we’re here to help you take the guesswork out of car care — so your vehicle always runs at its best.
