the new motor had 36k on it..open the valve cover and it's clean like new... my old motor had lots of crude sticking on the valve cover ..etc..that u can see when u open the valve cover. this is probly why my motor got mess't up even tho i had use full synthetic every 5k! I bought the car w/54k and put 40k on it and the thing that sucks is that motor been well kept up. so if my new motor is only 36k..i wouldn't need to use that atf , or BG MOA oil addictive do i?