New advanced engines and cooling systems are changing cooling system maintenance requirements. Service technicians and fleet managers should review their preventative maintenance (PM) strategy and ...

An auxiliary coolant heater can help a fleet reduce idle time and fuel consumption, resulting in several benefits to a diesel truck’s engine and aftertreatment system. “On average, an idling Class 8 ...

Did you know that when you’re doing an engine overhaul, you also should take the time to tune up the engine brake? Too often, the fleet or repair shop gets wrapped up in the engine overhaul and does ...

A mechanic's view of popular Japanese cars that come with design flaws, expensive repair histories or parts that are either hard to find or costly to replace.

Positive Crankcase Ventilation—three dirty words, but do they really need to be perceived that way? In general, the PCV system has two main functions: vapor relief and liquid separation. PCV systems ...

Engines in the off-highway industry are going through many challenges as technology continues evolving. More than ever, companies are trying to be more efficient and sustainable and gain the most they ...

The first and foremost realization by any worthy MRO service provider must be that no two aircraft engines are alike. And that one size never, ever fits even two, let alone, all. Airlines operate ...

A driver heads for his cab, jumps in, belts up and hits the starter button. It’s only 10 degrees outside, but the engine fires almost immediately, and runs quietly while he warms it up. No fuel ...