- Replacement of the air filter
A clean air filter allows for better air flow to the engine, thus improving fuel efficiency. To keep your engine running smoothly, check your air filter regularly and replace it according to your vehicle’s maintenance schedule. 4. Oil system maintenance
A clean fuel system will keep your engine running smoothly. Consider using fuel additives regularly to clean your injectors and keep them running optimally. If you notice a drop in oil quality, you need to flush the oil system.