Black Smoke: Cause, Impact, and Prevention

We have all seen clouds of black smoke emanating from the exhaust stacks of heavy duty diesel trucks especially when the truck is under high load or hard acceleration. The black smoke is composed primarily of elemental carbon from incomplete combustion of diesel fuel...

Overloaded Diesel Trucks

Visitors of many developing economies may notice that many commercial vehicles often appear to be overloaded, with sagging suspension, moving along at fairly low speeds with engines revving in low gears and cargo stacked high. There have been many cases of cargo...