The Drive posted an article about a 2014 Ram Promaster cargo van that logged an unbelievable 626,000 miles before encountering timing problems due to broken plastic timing chain guides and tensioners. Upon tearing the 3.6L engine down, the oil pump was in excellent condition, the cylinder walls still showed the factory crosshatching and the rod bearings appeared to have some additional life left before wearing through the outermost layer of alloy. The van never burned oil and it was changed every 8,000 miles using full synthetic Mobil 1 or Valvoline. This really speaks to the reliability of the Pentastar engine, if properly maintained. https://www.thedrive.com/news/34672...s-chrysler-pentastar-v6-is-after-626000-miles