The launch of the Paccar MX engine was anything but smooth. Although the engine has always been regarded as sound, issues with after treatment parts, a wiring harness and limited service capability gave the engine a bad rap. Today, the Paccar MX engine maybe one of the better values if you are purchasing a new or pre-owned Kenworth or Peterbilt. Excellent fuel economy, low cost to run and increased support by dealers and independent service facilities make the Paccar an excellent choice. We interview David Cedillo and Ben Lennox and get their thoughts. We hope you find it interesting.

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