DMAX is an American manufacturer of

diesel engine The diesel engine, named after Rudolf Diesel, is an internal combustion engine in which ignition of the fuel is caused by the elevated temperature of the air in the cylinder due to mechanical compression; thus, the diesel engine is a so-ca ...

s for

truck A truck or lorry is a motor vehicle designed to transport cargo, carry specialized payloads, or perform other utilitarian work. Trucks vary greatly in size, power, and configuration, but the vast majority feature body-on-frame constructi ...

s, based in of

Dayton, Ohio Dayton () is the sixth-largest city in the U.S. state of Ohio and the county seat of Montgomery County. A small part of the city extends into Greene County. The 2020 U.S. census estimate put the city population at 137,644, while Greater D ...

. DMAX, originally announced in 1997, is a 60-40

joint venture A joint venture (JV) is a business entity created by two or more parties, generally characterized by shared ownership, shared returns and economic risk, risks, and shared governance. Companies typically pursue joint ventures for one of four rea ...

between and operated by General Motors and Isuzu. Diesel engine production started in July 2000. The company's

Duramax V8 engine The Duramax V8 engine is a family of 6.6 liter Diesel V8 engines produced by DMAX, a joint venture between General Motors and Isuzu in Moraine, Ohio. The Duramax block and heads are supplied from reliable vendors of General Motors. This engine w ...

has been extremely successful for GM, raising that company's diesel pickup market share to 30% in 2002, up from approximately 5% in 1999. The DMAX plant was built on a land grant site adjacent to a GM plant that made the 6.2/6.5 L Diesel V8. Production of that engine began in 1982. The plant is planning to increase production from 580 engines a day, in 2017, to 700 engines a day.

Engines

Circle L engine The Circle L is an automobile engine produced by GM Powertrain Poland in Poland. It is a inline-four 16-valve turbocharged diesel engine originally designed by Isuzu but now owned by General Motors. The engine is produced in Europe by Genera ...

– 1.7 L I4 (produced at

Isuzu Motors Polska Opel Manufacturing Poland Sp. z o.o. (formerly General Motors Manufacturing Poland Sp. z o.o.) is an automobile manufacturer in Poland. It assembles light commercial vehicles in a factory in Gliwice and builds engines in Tychy. Opel Manufacturi ...

) *

DMAX V6 engine The DMAX V6 engine is a Diesel engine. It was designed, and is produced by Isuzu in Fujisawa, Kanagawa, Japan but the design rights to the engine are now owned by General Motors. It uses high-pressure common rail direct injection with fou ...

– 3.0 L V6 (Isuzu 6DE1) (produced in

Fujisawa, Kanagawa is a city in Kanagawa Prefecture, Japan. , the city had an estimated population of 439,728 and a population density of 6300 persons per km². The total area of the city is . Geography Fujisawa is in the central part of Kanagawa Prefecture. ...

, Japan) *

– 6.6 L V8 (produced at DMAX)

References

External links

* {{DEFAULTSORT:Dmax (Engines) General Motors factories Isuzu Joint ventures Diesel engine manufacturers Companies based in Dayton, Ohio 1998 establishments in Ohio Engine manufacturers of the United States