Review on Bar'S Leaks Rislone 4740-4PK Complete Diesel Fuel System Treatment 16.9 Oz, (Pack Of 4) by Roberto Strumer

I like this product . In the winter I put a bottle of this in my tank when I fill up . That said, however , here recently it has become very difficult to open the bottles . This last one was WAY STUPID ! I had my grown son leaning down on the bottle with all his strength while I used one hand to hold the bottle upright and the Other hand had a pair of large channel locks to turn the top . I do not understand why these damn things have to be put on so damn tight. There is a foil seal on the top of the bottle to keep the two parts from mixing so that should keep the product in .