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...

Viscosity Modifiers in Axle Oils

The base oil is the main component of axle oils. It’s from 36 to 96 percent of the gear oil. There may be no viscosity modifier, or it can be as high as 50 percent. A pour point depressant may be added, up to two percent of the total oil volume. Finally, the axle oil...

Downsizing and Downspeeding of Diesel Engines

Downsizing and downspeeding of diesels are strategies to enhance fuel economy and reduce emissions. They are not yet widespread but could become more common in five plus years. Downsizing and downspeeding strategies have been successfully applied for light duty...