Could the OM617 be the most reliable automobile engine ever made? A very good case could be made for it, although its successors haven't been around long enough for us to judge whether they might be ...

Want to make an engine last a million miles? Drivers control only a few of the factors that make these engines more durable ...

Texas-built Defender 90 gains legendary Mercedes OM617 diesel power and multi-fuel capability for extreme reliability.