High concentration hyper polyether amine (PEA) deposit remover. High performance carbon deposit cleaner DDR is filled in a new bottle designed for easier pouring. Deposit in combustion chamber and spark plug due to tuning or long period operation will be easily removed. It is an additive for gasoline to recover performance of engine. A bottle (225ml) per 75 Liters of gasoline. As it is In-tank type, it is easy to use. It is applicable for any gasoline engines including normal port injection, direct injection, carburetor and rotary engine.