For all it seems to work. since I have been using it I have not called the burner company for maintence which is usually a clog in the filter due to sludge from the tank bottom
Way to expensive! Two years ago we were paying $ 20.00 for 8.0 ounces. It has the
appearance that you folks are taking advantage of us. This is the last year that I will
be purchasing your product!
Furnace would not keep running after swapping out out tank for a new one. Tried other additives and they did not work. One bottle of this and it seems to have cleared up whatever was in the tank.