I think a 30/70 mix is good for warm weather, 40/60 is good for cold climates and 50/50 is good for the North Pole.
I am going to experiment with redline 15% coolant and 85% water next week. They claim it will reduce temperatures by 10-20 degrees. HA we will see!
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1966 Customized for daily street and highway domination. 358 Windsor running 425 HP
C-4 Auto and 3.25 Posi
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