We Ran a Freightliner, Peterbilt & Kenworth to 1,000,000 Miles - A Clear Winner

We bought a Freightliner Cascadia, a Peterbilt 579, and a Kenworth T680 and ran them hard for a full million miles. Same routes, same loads, same weather, all the way through. The goal was simple: find out which truck brand actually earns its reputation, and which one is just coasting on a name people trust without question. Two of these three trucks run the exact same PACCAR MX-13 engine, just under different badges. That alone changes how you should be shopping. Along the way we track engine issues, emissions system trouble, turbocharger wear, cold weather performance, dealer network size, resale value, and total cost of ownership from mile one all the way to a million.