I'm planning on buying this , [h=1]Prestone DEX-COOL Extended Life Antifreeze/Coolant.[/h] Good or bad choice?
Don't use Dex-Cool. Instead, use concentrated Ethylene Glycol (the yellow stuff), 50/50 with distilled water from your local drugstore or supermarket. NOT spring water - distilled water!!! If you have "borderline" cooling, you can also add a bottle of Water Wetter (just about every parts store has this), and cut back to about 40% Ethylene Glycol. -BC
So 7.5 qtrs of Ethylene Glycol and 7.5 qtrs of distilled water? Because I'm about to go buy this stuff and flush my car tomorrow morning.
u can purchase 50-50 already mixed water & ethylene glycol, but I would not do that. Buy two jugs of prestone anti-freeze & two jugs of distilled water and mix your own OR dump in a jug of prestone, then a jug of water. Then mix the last two jugs and dump as needed. .
/\/\/\ This. Just say "NO" to Dex-Cool. I flush it out of any GM products I own, as does most everyone else.