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 ...

Dear Car Talk: A couple of nights ago, I was driving my 2000 Range Rover on the interstate when the heater suddenly started blowing cold air and the temperature gauge topped out. I pulled off to the ...

When considering an SUV purchase, engine reliability is a crucial factor for many buyers. Unfortunately, some models have ...

Problems with your vehicle’s catalytic converter might first become apparent through poor acceleration, a rotten-egg smell from the exhaust, or the check-engine light coming on. As things get worse, ...

Harley-Davidson's Twin Cam engine powered much of its lineup in the early 21st Century, but had some common major problems that didn't please owners.

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 ...

A leaking rocker cover gasket won’t cause the engine to stop unless it somehow manages to allow too much lubricating oil to escape the engine (which, it potentially could over time). But it still ...