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There's nothing special about antifreeze...it's just a solute (spelling?). Anything dissovled it water will lower the freezing point and elevate the boiling point. Ethylene glycol is used because it's mostly compatible and non-corrosive with the metals, rubber seals/hoses, gaskets, etc. used in engines. You could use sugar or salt...but I doubt your cooling system would last. 80/20 sounds like too much solute (why does that sound wrong?...it's late) and not enough solvent. At what point does it become too much? Not sure...


A solute "can" be correct.
A solute is generally a component of a solution in lesser
quantities than the rest of the components that make up the solution.

1995 Trooper LS auto 3.2 DOHC /w SOHC intake
1989 Trooper 2.6 auto
1989 I-Mark RS DOHC 1.6
1991 Stylus XS DOHC 1.8