In this episode, Zack and Ralph Interview John about the Miracle Stop Leak oil additives. John takes you through the history of stop leak products when they were first introduced in the 1970’s until today. You will learn the real science behind these stop leak products. Don’t be surprised that it is not the science that you have been told or are being marketed. Are they the right way to fix leaks; do they really work. Should you use them as a last resort? How about the side effects of adding stop leak into the system? John has all the answers and spoiler alert, he and his company are not on board with all this madness. Listen to the great podcast below to find out.