...is that modern engines are lasting longer than ever & often outlive the rest of the car. So what's all the fighting about? I run into people all the time that have well over 200k miles on their vehicles using Bill from Utah 5w-30. Maybe Bill is the voice of reason on the board. This is excluding extended drain intervals of course. It's funny too because with all the time I've spent on the board, I've never met anyone in my life that lost an engine from a lubrication failure.