[Chester Stone]

Jon, I am not sure which engine you have but if it is a wet sleeved cylinder engine, the chemical is critical to prevent the creation of bubbles adjacent to the cylinders which cavitate and will eat holes into the cylinders. The test strips will tell you the chemical balance, and if out of balance you can purchase the chemical to add to your system. You run the risk of destroying the engine if the chemical is missing for an unknown number of miles.