>John, what makes that coolant a good choice, how is it different
>from prestone lets say?
Steve, from what I understand about NPG+, its main benefit is the lack of water - 'non-aquaeous'. Also, I know from experience that coolant is one of the most neglected fluids in the engine. NPG+ is touted to be a 'lifetime' coolant, you put it in and never need to change it(almost). 'Prestone' or virtually all over the counter anti-freeze will degrade over time and not only lose their optimum cooling abilities, but also start allowing corrosion in the system. The other improvement I feel sets it apart from others is the ability of an increased boiling point without raising the system pressure. IMO this would allow running a lower system pressure thus increasing reliability and longevity of the radiator, heater core, hoses and gaskets.
>Is that water pump a direct fit? how much would it cost. and with
>the evans...
You would need to call Evans and verify the fitment as well as pricing, perhaps someone else here would know better than I, but I believe the water pump on the Mustang version of the 4.6 is the same as the Mark(I'm thinking of some members here with 'stang backgrounds).