Total dissolved solids (TDS) is a measure of additive concentration and contaminants in coolant. TDS in excess of 3 percent may promote water-pump and radiator failures. What would you guess is the ...

Elizabeth Nelson, coolant program manager at Polaris Laboratories, a fluid-analysis company in Indianapolis, Ind., tells a story that would strike fear into the heart of any fleet manager. A class-8 ...

Shell has introduced an on-site contamination test kit for its extended-life coolants, the Shell Rotella Extended Life Coolant Contamination Test Tool. There are basically two types of coolants in the ...

If you’re a maintenance manager or owner-operator who is thoroughly confused as to what type of engine coolant should be in your heavy-duty diesel truck (much less what type of coolant is actually in ...

This story appears in the March 13 print edition of Equipment & Maintenance Update, a supplement to Transport Topics. As manager of technical development for TA and Petro travel centers, Homer Hogg ...

Coolant is generally the most neglected fluid on a truck, and it leads to significant woes downstream. In fact, Lawrence Wong, product technical specialist for Chevron Lubricants, said about 40% of ...

As The Turtle Expedition made final preparations for our Trans-Siberian Expedition, we knew we would be driving and camping in temperatures below -85 degrees Fahrenheit. That's 117 degrees below ...

The importance of regular service intervals for heavy-duty diesel engines is well understood. Yet, too often, the service focus is on things other than the engine’s cooling system, such as air, lube ...

Cavitation erosion or liner pitting is caused by air in the cooling system, and is aggravated by liner vibration. Bubbles implode violently, removing a little metal as they do so. Although it’s often ...