120+ Octane Booster will increase the octane of today's fuels by 2 to 5 points, depending on the quality and octane level of the fuel being treated. It is also a complete fuel conditioner. This high performance product does it all. It will clean injectors. 120+ contains no methyl alcohol which can damage engine parts. It will remove gums and varnishes from carburetors to improve fuel efficiency and air flow. Used regularly, 120+ softens and removes carbon deposits from pistons and rings. In addition, it cleans and lubricates the entire fuel system of any gas vehicle and functions as an excellent upper cylinder lubricant for increased power and performance. This product is a must for older vehicles and a real plus for all.