In 1997 Marinediesel Sweden manufacturer
and distributor of automotive parts began the
development of a line of Marinediesel engines based
on the Detroit Diesel V8 engine 6.5L diesel engine.
This model was renamed to Optimizer 6500, one of
the most impressive commercial and military
histories of all engines and used in the military
Humvee and Hummer H1 . In 2001, The Marinediesel
line of engines was fully developed and in
production as a finished product and by 2010
Marinediesel released the new VGT series based
on the GM 6.6L Duramax engine in power range
from 350-500hp.