It'll all have leaked out, resulting in a complete changover in 2 yrs.  ;-)
 
 >New GM vehicles come with a (claimed) 100k/5yr coolant they call 'Dex-Cool';
 >I've just discovered Prestone "Extended Life - 5/100" coolant that notes on
 >the bottle that it is Dex-Cool compatable, & silicate and phosphate free.
 >(~ $8/gal @ Pep Boys).  It's a vile, bile yellow color, same as the GM
 >stuff, for what it's worth.  Any comments pro / con from the truely
 >knowledgeable out there ref using this stuff & maybe going 2-3 years between
 >coolant changes?
 >
 >Austin
 >

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Frank Terhaar-Yonkers,  Manager
High Performance Computing and Communications Research
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