Is the OM617 turbo diesel reliable?
The OM617 was a breakthrough for diesel engines in passenger cars, providing better performance than its four-cylinder counterparts while maintaining great fuel economy. The OM617 was praised for its bulletproof reliability, often exceeding 500,000 miles with routine maintenance. The OM617 was praised for its bulletproof reliability, often exceeding 500,000 miles with routine maintenance. It gained immense popularity in models such as the W123 300D and W126 300SD, particularly in North America, where cars with diesel engines were very scarce.
What is the holy grail of diesel engines?
Within the diesel community, the 2003 to 2007 5. Cummins Rams are often considered the holy grail of modern Dodge/Ram trucks. They represent an ideal balance: newer comfort and technology paired with the proven 5. Cummins reliability. The Cummins 12-valve engine, and specifically the 5. L 6BT, is all that and more. If you’re just getting into diesel engines, calling the Cummins 12-valve engine the Holy Grail of diesel engines may seem like you are trapped in nostalgia.