Tired of people saying you gotta run a diesel hard to keep it clean

I hear this all the time at the shop from the older guys. 'Drive it like you stole it' or 'let it eat' to blow out the carbon. Honestly I think that's just a myth that causes more wear. I rebuilt a 6.7 Cummins last year from a guy who always drove it hard on the highway. Valves were toast and the rings were cooked. A steady drive at 1800 RPM with a good load does the same cleaning without hammering the internals. Anybody else see more damage from this old school thinking?

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