That's cuz I fumblefingered while pasting it in. It's fixed now (or you could just click here). This stuff used to be called "Manifold Heat Control Valve Solvent", and now because most cars don't have manifold heat (or control valves for it), it's called "rust penetrant". Same recipe, though. It's not just another penetrating oil, it's formulated to dissolve the carbonaceous exhaust buildup that sticks the shaft in place. Kroil's terrific, but it's a different tool.
