Re: Water pump on 4.6L V6
To add a little more to what Don correctly stated, Antifreeze acts as a lubricant, along with anti rust/corrosion properties.I wanted to put extended life Dex-cool in my old 77 Cutlass. The old school mechanic I work with warned me that the old water pump would fail cuz dex cool doesn't have the same lube qualities. You ever get that old antifreeze/coolant on your fingers? it feels oily. Dex cool has some lubricating qualities, but less then the old stuff. Sea [ lake ]water, has little to none depending on how you look at it.....Marine part$ are de$igned with thi$ in mind....
