REDEX PETROL BOOSTER: Use Redex Petrol Octane Power Booster Fuel Additive, the specialist Octane booster, lab designed to maximise performance and offer potential increases in fuel economy for your petrol engine. INCREASE OCTANE RATING: Improve your Octane number today with Redex Petrol Booster - it will increase your petrol’s Octane number by up to 1.5, so no matter what petrol you put in your car you can be sure that it is receiving the best. UNIVERSAL PETROL FUEL ADDITIVE: Redex Octane Booster is suitable for all petrol engines, and is safe for catalytic converters. Boost the Octane number, and a higher Octane number means better quality fuel and increased performance. EASY TO USE PETROL BOOSTER: Pour the Redex Booster directly into your fuel tank. It can be used as often as you like to keep your engine running well. We recommend using a shot in each tank, but also if you notice your MPG dropping between fill ups. OVER 100 YEARS OF EXCELLENCE: At Redex, we have spent over a century offering solutions to your car troubles to make your life easier and stress free. If you want the perfect tools to maintain, repair or clean your vehicle, we have what you need.