I recently took my '95 VW GTI VR6 with 110,000 miles on it in to have the coolant changed and the thermostate replaced. The guys at the shop said that after they were done, they ran a test and found ...

Heavy Duty Trucking's Top 20 Products awards recognize the best new products and technologies. Check out the award presentations at the 2026 Technology & Maintenance Council annual meeting.

Your vehicle is a complicated piece of machinery, and keeping it running smoothly requires periodic inspections and maintenance of its various systems, including your engine’s cooling system and the ...

Spectro Scientific’s CoolCheck 2 Coolant Analyzer is designed to automatically test coolant systems and diesel exhaust fluid. The CoolCheck 2 is a touchscreen analyzer that makes use of broadband ...

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 ...

For the last four decades, auto manufacturers have embraced the use of electric fans. Electric fans first appeared on low-powered, emissions-laden front-wheel-drive cars that were in dire need of ...

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.

As engines get very hot, coolant helps distribute heat to help prevent overheating and engine damage. It also adds antifreeze protection and acts as a lubricant for some of the engine’s components. If ...