It's funny how some comment on how well their oil is or has done for them same with filters, do any of you have oil analysis to back that up?
Even the oil analysis people say that you shouldn't compare one oil analysis from one truck to one oil analysis from a different truck.
So...... why?
You are in the habit of comparing your oil analysis to your son's truck? But you are really only expected to look at trends and averages for your specific truck. And maybe at averages across many many trucks (more than 2 - 5 trucks)?