It does work.
When put in the fuel tank, it cleans up the gel and gunk in the lines, pump, and filter. For best results cleaning the pistons, heads and injectors, slowly pour it into the brake booster line.
There's plenty of videos in YouTube showing how to if need be. Obviously it'll take more seafoam to clean a car engine that a dinky little push mower engine, but it does indeed work when done right.
Last edited by rcfury96; 01-03-2015 at 07:31 PM.