Unless you know what you are doing I would STOP experimenting. You run a huge risk of hydro-locking the motor if you manage to get enough fluid into the combustion chamber. Links have already been posted where you can find out how to do this. Here are the instructions from SeaFoam. http://www.seafoamsales.com/motorTuneUpTechGas.htm You can use the PCV line, just disconnect it from the PCV valve and put it in there. MAKE SURE TO DO IT SLOWLY as you want to make sure it gets burned and doesn't hydro-lock the motor.