PJ1 Super Cleaner has been used for over 25 years by top mechanics to clean, degrease and prepare just about every surface on a car or motorcycle. Super Cleaner can be used for pre-assembly of motors, carburetors and brake systems to quickly clean and evaporate leaving no residue or moisture on a prepared surfaces. PJ1 Super Cleaner is the #1 mechanics choice. PJ1 Super Cleaner uses an OZONE SAFE PROPELLANT and is completely recyclable when empty. Not just another brake or contact cleaner, the high pressure combined with superior solvents gets it done like no other. Not for use on some plastics. New California Compliant, environmentally friendlier formula.