How to Mix Coolant Correctly: The
26 Nov 2025
Fresh Coolant Separating or Clumping? You Might Be Mixing It Wrong!
Is your freshly mixed coolant separating quickly, forming clumps, or losing its effectiveness faster than usual? You might be making the most common fundamental mistake: "Mixing in the wrong order."
The Problem: Pouring Water into the Concentrate (Oil) causes an "Inverted Emulsion." This creates an unstable mixture, resulting in:
-
Rapid separation/splitting.
-
Loss of lubrication and rust protection properties.
-
Wasting expensive coolant concentrate.
✅ The Solution: Remember the "OIL" Rule = Oil In Last Always pour the Concentrate (Oil) into the Water—while stirring continuously.
Pro Tip: Use a Venturi Mixer for perfect, consistent results every time.
Correct Mixing = Longer Coolant Life + Better Performance + Cost Savings
At Focus Mechanic, our service team provides comprehensive consultation on metalworking fluids.