The diesel engine has undergone a significant evolution over the past two decades. Most of these changes were designed to reduce emissions and air pollution, but once early generation emission goals ...

Harvard's oil recycling system, installed on this Caterpillar 980G loader, cleans the used oil so it can be reused in the engine. Both engine and hydraulic filters, shown here on a mixer, keep ...

The engine is the most important part of your car, so you better take good care of it. The engine is the most important component in your car. If it fails, not only does your car not function, but ...