I have read of many people introducing water and chemicals (seafoam) to their intake directly to supposedly clean their combustion chambers, specifically using water injection as it's proven to increase decrease temps in the correct application, I know that you have to use the correct vacuum line to get equal distribution and many say that it's impossible to equally distribute said water/chemicals, has anybody just added water to the gas tank and am I crazy for even asking, let's say you add a light oil like Marvel Mystery oil after adding the water to negate any corrosion , is it physically impossible as the water would just sit at the bottom of the gas tank since it's heavier than the gasoline and ruin the fuel pump? and if the water did somehow make it to the injectors could that be a steam cleaning through the injectors and intake?