If you've inspected your vehicle's engine block closely, you've likely noticed a few strategically placed metallic discs that look somewhat out of place. The discs are typically cup-shaped plugs, ...

Perhaps one of the most overlooked aspects of a high-performance diesel engine is its cooling system, which is often left completely stock while the rest of the powerplant is built to the hilt. On ...

In your racecar, a cracked block from frozen coolants in the winter isn't usually the problem. Leaking freeze plugs that dump coolant on the track, however, is. If you have a freeze plug work its way ...