carringb wrote:
All the diesel ENGINES can last nearly forever. I've only worn one out and it was a Cummins 5.9 in a 16,000 pound F650 which topped 40,000 when fully loaded. Also it was driven hard and geared low so it was near redline on the freeway. It got rebuilt around 350,000 miles (did not cost much more than a modern v8 rebuild).
That said, the emissions and fuel systems on the newer trucks arrant as durable as the motors they are bolted to, and can be $$$ to fix.
LOL! I know what you mean. We have a 650 with a 5.9 Cummins mated to an Ally trans. I went and got loaded one day to take some rock to a local job site and scaled just under 40,000. LOL Hydraulic breaks don't work to good on those trucks when 7 tons over the GVWR......LOL and people on here say an RV a couple thousand pounds over a TV's little sticker is going to kill a whole town of people. HAHAHA!!