With more advanced engine metallurgy and design, and the demand for increased fuel efficiency and lower emissions, engine operating temperatures have increased more than 40 F in the last 50 years.

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 ...

The best advice for maintaining heavy-duty-diesel cooling systems has not changed: 1) follow the engine/vehicle manufacturer’s antifreeze recommendation; 2) use deionized water to dilute antifreeze in ...

PEAK, a division of Old World Industries, has released Final Charge coolant testing strips to measure the quality of engine coolant in commercial vehicles. “We all know that high-performing, fully ...

CARS.COM — When is the right time to change your engine coolant? For some vehicles, you’re advised to change the coolant every 30,000 miles. For others, changing it isn’t even on the maintenance ...