Lesson 2/Learning Event 1
Today's mechanized field army requires many vehicles to move its personnel and equipment. Most of these
vehicles operate on either gasoline or diesel fuel.
In the early 1960s, an engine was introduced that would run on various available fuels with no adjustments
needed. These fuels included regular gasoline, aviation kerosene, compression-ignition fuel (CITE), and diesel
This engine is used in some of the Army's wheeled vehicles. It is called the multifuel engine. This engine has
proven to be very valuable to military operations due to the many fuels the engine will operate on. About 71
percent of a barrel of crude oil can be used in the multifuel engine, but only 54 percent of the same barrel of
crude oil could be used in both the gasoline and diesel engines combined.
The present multifuel engine used in wheeled vehicles is a six-cylinder, in-line, valve-in-head engine. It is also a
liquid-cooled, compression-ignited type of engine. It operates on the four-stroke-cycle principle.