At 05:13 PM 7/19/03 EDT, Johno8@aol.com wrote:
>The Alvis Register July Circular poses this question:
>
>"Does antifreeze really improve cooling in hot weather?"
>
>Of course they're asking about vintage (pre-1932) cars with non pressurized
>systems.
>
>I use distilled water with Red Line's Water Wetter only in sub-tropical
>Miami, and it seems to work just fine.
John,
I haven't seen any replies to this so I'll tell you what I know.
1. Antifreeze does not increase cooling in hot weather. In fact it decreases
the cooling capability of water. Water is the best coolant. However,
antifreeze does have some lubricants that the water pumps need.
2. Why we run antifreeze in the newer cars - post war - in the summer is to
elevate the boiling point. Water will boil at 212 deg. F. However a
50/50 mix won't boil until say 220. If we add a pressureized system,
we can elevate the boiling point to 240 to 260.
So the eng. won't boil over and loose what cooling fluid we have. Once
the eng. starts to boil over, and it looses water, then it has less water
to help cool the eng. Consiquently the coolant won't be able to cool the
eng. so it will boil over again. Until it goes ballistic and we really
over heat, and or break something.
Hope this helps some.
John
John T. Blair WA4OHZ email: jblair@exis.net
Va. Beach, Va Phone: (757) 495-8229
48 TR1800 48 #4 Midget 65 Morgan 4/4 Series V
75 Bricklin SV1 (#0887) 77 Spitfire 71 Saab Sonett III
65 Rambler Classic
Morgan: www.team.net/www/morgan
Bricklin: www.bricklin.org
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