Deionized vs Distilled water in a cooling system?

Coolant of choice

  • 50/50 Coolant and Deionized water

    Votes: 0 0.0%
  • Straight water

    Votes: 0 0.0%
  • Water with additive of choice

    Votes: 0 0.0%
  • Waterless coolant

    Votes: 0 0.0%

  • Total voters
    1

Olds 307 and 403

Well-known member
Oct 4, 2018
877
263
63
Melville, Saskatchewan
I have used both before, no noticeable ill effects from either. I see Prestone mixes distilled water in their 50/50 coolant. Canadian Tire says Deionized water because they sell it. It is going in the big Autocity 2core aluminum rad which cools the 403 easily. Thoughts
 

Olds 307 and 403

Well-known member
Thread starter
Oct 4, 2018
877
263
63
Melville, Saskatchewan
I went with this combo.
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