FUEL INJECTORS
Why do you need to use a fuel injector cleaner:

Better Energy Production: Clean fuel injectors ensure that the fuel, gas or diesel, is correctly atomized in to a mist and equally dispersed in the ignition chamber. Therefore the proper fuel/air mix allows optimal combustion. Optimal combustion gets the most energy out of the fuel, while lowering exhaust emissions. Clean injectors will also boost gas mileage; drivers will experience fewer trips to the refilling station and save money.
Better Engine Efficiency: Clean injectors will dispense the exact amount of fuel needed by the motor at the correct time. This ensures that the engine runs as efficiently as possible. Clogged or dirty fuel injectors may lead to a poor fuel/air mix, resulting in hesitation, stalling or misfire. Clean injectors will help optimal engine performance.
Minimized Toxic Exhaust: Clean fuel injectors result in more efficient fuel combustion thereby decreasing the amount of unburned fuel causing pollution and carbon build up in the engine. This means fewer emissions out the tail pipe, like CO, HC and NOx. This leads to cleaner air and a healthier environment. This also means compliance with environmental regulations.
Extended Motor Life: Dirty fuel injectors can easily cause an improper fuel-air mixture which can cause the engine to run harder and less efficiently. Carbon deposits in the engine can increase maintenance costs and engine repairs. Clean fuel injectors will extend the life of the engine and its parts, saving you money.