Here Are The Best Years For The 6.6 Duramax Engine (And The Ones You Should Avoid)
The Duramax L5P was launched in 2017 and made an appearance in models like the 2017 GMC Sierra HD and the 2017 Chevrolet ...
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Duramax Diesel Generations By Year: A Complete History
GM debuted a revised engine, the LLY, mid-way through 2004 for the Chevy Silverado and GMC Sierra ... turbo ever on a Duramax engine, bigger than even the cutting-edge L5P's.