A fully Synthetic fuel additive that works in all gas equipment with 2 & 4-cycle engines. It removes varnish removes carbon deposits and water revitalizes rubber and plastic components replaces lost Octane and rejuvenates old fuel all without having to remove the carburetor and other components. Mechanic In A Bottle cleans equipment s fuel system so that it starts efficiently and operates in top condition.Features 4 oz. Anti-Corrosive/Metal Deactivator Carbon Cleaner Octane Improvement Fuel Stabilization High Temperature Detergent Upper Cylinder Lubricity Case Pack of 12 Dimension - 6.75 x 6 x 8.125 in. Case Pack weight - 3.75 lbs. - SKU: BCFL005