1.it harmlessly removes carbon accumulates ,grime,dust or oxide sediment 2.in five minutes short time cleaning 1.it harmlessly removes carbon accumulates ,grime,dust or oxide sediment 2.in five minutes short time cleaning3.free stickly valves ,lifters and piston rings ,lubrcates the engine. 4. reduces the egine wear and extends the using life of the oil and engine engine flusher