NEW, MORE POWERFUL FORMULA: VP Fuel System Cleaner uses a potent PEA (Polyether Amine) detergent to dissolve stubborn carbon deposits and varnish, providing high-performance cleaning for your entire fuel system and injectors. This advanced fuel cleaner restores engine performance, promotes smoother starts, and improves fuel economy. Our gas additive stabilizes fuel and protects against ethanol damage to keep your engine running strong mile after mile.