Using the lowest viscosity synthetic oils and high flow filtration increases fuel mileage. Higher flow air and oil filtration also reduces load. By reducing the load on the oil pump and reducing friction, the engine does not have to work as hard therefore burns less fuel. This will not only reduce your carbon footprint, but also save you money. What could be better than that?
Keeping your fuel injection and air induction system clean also increases fuel mileage. A clean air induction system will reduce turbulence in the intake that can greatly reduce the engine's ability to freely breathe. Clean injectors allow for a better atomization of fuel, allowing a more complete burn during the combustion process. Newer direct injected engines can actually damage the piston if an injector is clogged. These practices will also reduce your carbon footprint.
If caught early enough, replacing a stuck open fuel injector quickly and repairing it immediately with upgraded injectors will not only avoid destroying a very expensive engine like this v10 bmw engine we had in the shop, but will also greatly reduce the likelihood that it will happen again in the future. Sometimes the engine light can mean almost nothing, but sometimes it can mean almost everything.