Chevolet & GMC Serviced at Diesels Only Denver (303) 778-6511

Here at Diesels Only we work on all the various Chevrolet and GMC Duramax diesel engines, be it in your pickup, van or heavy duty truck. From routine maintenance to a complete diesel engine rebuild, Diesels Only is your local Denver shop to have this work expertly done.

Diesels Only
1400 West Alameda
Denver, CO 80223
(303) 778-6511

The Duramax V8 Engine

The Duramax is a General Motors diesel engine family for light- and medium duty trucks, designed by Isuzu. The 6.6-liter Duramax is produced by DMAX, a joint venture between GM and Isuzu in Moraine, Ohio. This engine was initially installed in 2001 model year Chevy and GMC trucks and has been an option since then in pickups, vans, and medium-duty trucks. In 2006, production at Moraine was reportedly limited to approximately 200,000 engines per year. On May 9, 2007, DMAX announced the production of the 1,000,000th Duramax V-8 diesel at its Moraine facility.

DuraMaxEngineimage382w The DuraMax LML Engine

The 6.6L RPO LML (VIN code "8") is the latest version (2011-present) of the Isuzu/GM Duramax V8 diesel engine and actually a further advanced version of the LMM engine with the majority of the changes addressing a required drastic reduction in engine emissions. Some mechanical aspects of the engine, such as piston oil flow design for improved temperature control and oil pump design, were also improved to enhance durability even further. The LML engine was significantly updated for 2011 to provide improved exhaust emissions that comply with the new federal emission standards for diesel engines, provide better engine rigidity and further noise reduction. New 29,000 PSI piezo injectors, a complete fuel system-hardening to tolerate up to 20% biodiesel mixtures and urea injection (to reduce Nitrogen oxides) with a 5.3 gallon urea tank are updating the fuel and emissions systems. This engine has a fuel injector in the exhaust tract, to allow raw fuel injection during the particulate filter recycling routine. The RPO LML engine is rated at 397 horsepower (296 kW) at 3000 rpm and 765 lbáft (1,037 Nám) of torque at 1600 rpm.