Summary:
- Weekly Checks: Monitor oil, coolant, tyres, and lights.
- Every 10,000–15,000 km: Basic service – oil change, brake check, and fluid top-up.
- Every 30,000–40,000 km: Full service – suspension, transmission, battery check.
- Annual COF Inspection: Required for NZ commercial trucks every 6–12 months.
- Major Service at 100,000 km: Inspect engine, gearbox, timing belt, and exhaust.
- Preventative Maintenance: Regular servicing reduces breakdowns and extends truck life.
How Often Should You Service Your Used Truck?
Keeping your used truck in top condition is essential for reliability, safety, and cost-efficiency. A well-maintained truck lasts longer, performs better, and saves you from costly repairs. But how often should you service it?
Here’s a breakdown of recommended servicing intervals based on mileage and usage.
1. Weekly Checks (Basic Maintenance)
- Check oil and coolant levels
- Inspect tyres for wear and proper inflation
- Look for leaks under the truck
- Test lights, brakes, and indicators
2. Every 10,000–15,000 km (Basic Service)
- Oil and filter change
- Fuel filter check
- Brake inspection
- Fluid level top-ups
For trucks under heavy-duty use, reduce this interval to every 5,000–10,000 km.
3. Every 30,000–40,000 km (Full Service)
- Replace air filters
- Inspect suspension and steering components
- Transmission and differential oil change
- Battery and alternator check
4. Annual COF Inspection (Legal Requirement in NZ)
All commercial trucks require a Certificate of Fitness (COF) inspection every 6 or 12 months. This ensures roadworthiness and compliance with safety standards.
5. Major Service Every 100,000 km
A full inspection of engine performance, transmission, and exhaust systems. If your truck has high mileage, major components like the timing belt, turbo, and gearbox may need replacement.
Key Takeaway:
Regular servicing extends your truck’s lifespan, improves fuel efficiency, and prevents costly repairs. Stick to these maintenance schedules, and your used truck will stay road-ready for years.
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