What do you think about that ?
Incorrect. We know for a fact that extended oil change intervals increase cam chain and balancer chain wear. We also know that UOA wear metals testing shows lower wear metals in extended drain intervals. However, this is not indicative of wear rates. There have been many UOA results showing excellent wear metals on catastrophically failing engines.
Particulates build up and increase real world wear rates. Folks, change your oil and choose your viscosity carefully.