: Specifically models 760 and 860. These are highly rated for driver comfort, safety tech, and D13 engine longevity, which can exceed 1.2 million miles.

The following models are consistently cited by industry experts from International Used Truck Center and Rush Truck Centers for their reliability and resale value:

: Check for "blow-by" pressure, oil leaks around the block, and even exhaust color. Blue smoke often indicates burning oil.

: If a seller cannot produce consistent service logs (especially oil changes and DPF cleanings), walk away.

: The most popular Class 8 truck in North America. It is favored for its Detroit engine efficiency and an unmatched service network.

: Look for cracks or fresh welds on frame rails. Inspect shocks for leaks and check for uneven tire wear, which signals alignment or suspension issues.

: Inspect the Diesel Particulate Filter (DPF) and DEF system. These are among the most expensive components to repair on modern trucks.