Yeh, you're right, and max is down to -84deg F. I'm in a little more
temperate clime, and -34 F (50/50) would work for me. I use 75/25 and a
little water wetter, but my LBC's live inside in the winter.
Not sure what the old bottles used to say, maybe good to -40 F at a 50/50
mix?
Anybody got one?
Safety Fast!
Gordie Bird
62 MGA
80 MGB
>
>
> Last fall I checked my coolant with an old Prestone hydrometer. I was
> puzzled by the poor reading, because I knew I had mixed it for maximum
> freeze, 50/50. Later I happened to notice that the container listed the
> maximum protection at a concentration of 70/30. Well, I'm sure the
> properties of ethylene glycol and water have not changed over the
> years. The
> manufactures of antifreeze are selling us diluted antifreeze! A
> trip to the
> store revealed it's not just Prestone, all the brands are
> diluting. HOW LONG
> HAS THIS BEEN GOING ON?
>
> Bob Donahue (Still stuck in the '50s)
> Email - bobmgtd@insightbb.com
> 52 MGTD - NEMGTR #11470
> 71 MGB - NAMGBR #7-3336
> .
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