Oil is the lifeblood of your vehicle's engine, and that's why leaks aren't something that should be ignored. Here are 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 ...

Diesel engines run hot under load, but extreme heat means trouble. Here are the hidden causes of rising exhaust temps and how to keep them in check.

Checking up on your coolant is easy to forget, but an engine’s coolant is just as important as oil when it comes to your car. Coolant does raises the boiling point of the cooling system in summer, ...

Note: This is the third in a series that looks at the diesel particulate filter and maintenance best practices that an impact its lifecycle. The first installment, "Diesel coolant heaters boost DPF ...