19 May 2026
Car Care & Lubricants 
Fuel injectors are precision components that spray a fine mist of fuel into your engine many times per second. Over time, carbon deposits and impurities in low-quality fuel build up around the injector tip, disrupting that spray pattern.
Signs your injectors need attention
- Rough idling or the engine shaking at traffic lights
- Reduced fuel economy even though your driving habits have not changed
- Hesitation or loss of power when accelerating
- A noticeable increase in exhaust smoke or smell
How an injector cleaner helps
A good fuel system treatment, such as a Concentrated Petrol or Diesel Injector Super Clean, is added directly to your fuel tank. As you drive, the active cleaning agents dissolve carbon deposits and varnish, restoring the injector spray pattern to its original shape.
How often should you clean your injectors?
For most vehicles, treating your fuel system every 5,000 to 8,000 kilometres is a good preventive habit, especially if you frequently buy fuel from stations with variable quality. Vehicles that mostly do short trips or sit idle for long periods benefit even more, since these conditions encourage deposit build-up.
A clean fuel system means smoother idling, better throttle response and more kilometres from every litre of fuel — a small investment that protects a much larger one.