GM announced on February 10, 2012 that it will be having the Duramax Diesel engine on the following vehicles:
Chevrolet Tahoe, Tahoe Hybrid, Suburban, Avalanche, Traverse, Malibu, Cruze, Camaro, Sonic and Equinox
GMC Yukon, Yukon Hybrid, Yukon XL, Acadia and Terrain
Buick LaCrosse, Verano, Regal and Enclave
Cadillac Escalade, Escalade ESV, Escalade EXT and CTS[citation needed]
This will happen in 2013 or 2014.
Found on wikipedia search for duramax on bottom of page