Oil & Engine Additives

Do "Super Coolants" Lower Engine Temperature By 30 Degrees?

Mar 2025/18 min/10 products tested

Watch the test ↗

The verdict

  1. 1

    Red Line Supercool

    avg finish 3.2

    “the redline super cool came in on top with the best average finish of 3.2”
    Buy on Amazon ↗
  2. 2

    Liquid Chill

    avg finish 3.4

    “the liquid chill in a very close second place with an average finish of 3.4”
    Buy on Amazon ↗

Other picks

  • Also noted

    Evans Waterless

    “it does offer the best freezing and boiling point and absorbs acid the best”
    Buy ↗
  • Avoid

    VP Racing Stay Frosty

    “all of the products stayed in liquid form except for the VP racing stay frosty which is completely Frozen so I'll go remove it from the competition”
    Buy ↗
  • Best value

    VP Racing Additive

    “the VP racing additive seems like a very affordable way to go and it performed well with an average finish of fourth place in each event”
    Buy ↗

Everything tested 10

Links go to Todd's own Amazon listings with his affiliate tag intact — this site adds nothing and takes nothing.