Case for Coolant - News ThumbSome equipment users may be overlooking their cooling system maintenance or even recycling coolant to reduce disposal. But today’s engine temperatures are higher than they used to be, especially when operating in Arizona and southern California. Plus, smaller radiators and cooling system capacities are being designed into modern diesel engines. These and other factors are placing ever-higher demands on your coolant and cooling systems.

Problems that originate in your cooling system often spread into major issues throughout your engine, transmission or hydraulic system. In fact, about 50 percent of all engine downtime can be attributed to cooling system problems. That’s why it’s so critical to care about your coolant as much as your oil!


Level 1

Every time you change your oil (or around every 500 hours), get a coolant test. This easy check can determine whether your coolant has the right chemical balance for maximum system protection and cooling efficiency. It’s also helpful for documenting routine maintenance. 

Tests and interpretation include:

Fluids Lab Coolant Testing 

  • Glycol level
  • pH
  • Conductivity
  • Nitrite
  • Magnetic solids
  • Odor
  • Color
  • Appearance
  • Precipitate
  • Foam
  • Freeze point
  • Boil point


About once a year, it’s important to proactively check for issues like cavitation, corrosion or electrolysis that can go undetected until it’s too late. Also, if you suspect a cooling system problem or want extra peace of mind that your coolant is working as it should, Level 2 is recommended. (Level 1 analysis may indicate the need for Level 2.)

Includes all tests performed in Level 1, plus:

  • Evaluating coolant chemistry
  • Elemental analysis
  • Contaminants
  • Water quality
  • Anion analysis of coolant additives and their breakdown products

Coolant samples can be dropped off for testing at any Empire Southwest location for free delivery to our lab. Once received at the lab, results are typically available within 24 hours and will include both our team’s findings and any service recommendations arising as a result of them.

Connect with the Experts

Request a sample kit or discover how Empire Fluids Lab can handle equipment management for you.

Call us at 480-633-4835.

Contact Us



This article is one of a six part educational series that will give you the knowledge to protect your machinery investment with fluids analysis.

View Series and Resources


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