How good is b20 chemtool?

Question

How good is it for injector cleaner and fuel sysem cleaner?

Answer 1

I use it every year in my boat. I spray a can thru the carb and and a can to the fuel. I can tell a difference in the smoothnest of the engine compared to before I use Chemtool after the engine has set up all winter. As for my cars, I use it every now and then when I can think to buy it and I think  it is working because both my 100K mile cars still run smooth.

Answer 2

Top 3 fuel cleaners:

BG44K

Chevron Techron concentrate

B12 Chemtool