I have personally seen triton engines go up to 800,000 miles with virtually no problems. Timing chain guides and tensioners wear out, or pumps wear out, valve train wears out. Those engines are built tough. You just CANNOT run them low on oil. The spark plug issue was a flaw, easily remedied by replacing the spark plugs with the correct updated ones. But other than that, a great engine.

The folks at Spradley Barr are a bunch of lying assholes. And Loveland Ford isn't any better.