it cleans out the sludge inside the intake manifold and the top of the pistons. it is what they do at shops for a 2 step cleaning, but insted of it being 60 dollars it is 10
2002 Ranger Edge
Red, 4 door, 4.0, 4x4, 4.10 gears, 5 speed
1987 Suzuki Samurai
Rustoleum flat black, weber 32/36, 2 inch exahust, full soft top, and rear mini spool.