Last week we focussed on using an electric fan to help improve your Land Rovers fuel economy.
This week it is the turn of the often overlooked air filter.
If you restrict the air entering the combustion chamber, you'll end up reducing engine power.
For optimum performance you would run an engine without any restriction, but in reality this would cause more problems and dirt getting into the engine and causing damage.
Performance air filters allow the air to flow more freely, which will help to achieve maximum combustion in the engine.
You can find out here how to change the air filter on a Land Rover Discovery
Improve your Land Rover fuel economy: Air Filter
- Cost: From around £5
- Improvement: up to 5%