more water injection

[tom cloud]

>> OK, here's a really dumb (but interesting to me) question: If water 
>> injection is so great, why is water in the gas considered so bad? 

   [ snip ]

>I am led to believe that the reason you do not want water in the 
>petrol tank is that water is heavier than petrol, and will therefore 
>sit at the bottom of the tank and make it go rusty.  

   [ snip ]

good grief!  water and gas don't mix!!!  that's why the water has to
be squirted in whilst the intake is open.  adding methanol, isopropanol,
or ethanol doesn't get rid of water in the tank and fuel lines, it allows
the water to dissolve into the alcohol / gasoline mixture (I think
it's called 'miscible' in chemistry class).

tom