Lucas Oil and Red Line are considered the top performing fuel injector cleaners by many experts. Fuel injector cleaning can be accomplished by two methods, either adding the cleaner to the fuel and allowing circulation to be accomplished by the fuel pump or by using a professional compressed air system.
Carbon from the fuel builds up in the injectors and, over time, blocks the fuel flow. This causes a reduction of performance and an increase in fuel usage. Fuel additives inserted into the gas tank can keep the injectors clean. However, if a reduction in fuel efficiency is noted after the fuel treatments, a professional treatment is necessary. This is accomplished by the use of a compressed air system that forces cleaner through the injectors and measures their exact performance.