Chrysler debuted its new engine at the 1938 NYC Motor Truck Show, to an amazed audience. There was only one problem: Where ...

Effect of HHO on engine performance and exhaust was investigated. A constant flow rate of 0.42 liter per minute of HHO gas was introduced through the intake port of the engine.

In the 1970s, the introduction of Detroit Diesel's 2-stroke engines marked a significant shift in the Brazilian truck market, particularly with Ford and Chevrolet.