WillyBWright are you saying, and it does seem to make sense, that a batt switch will reduce corrosion in the engine bay area. The reason I ask is that I was given one new in the package but have never had problems with the battery running low so I never installed it, will it cut down on corrosion?<br /><br />WillyB you had said something about this in an earlier thread on a sending unit and i did not want to ask a new question on someone else's thread.