Wouldnt run any oil for 15000 to 25000 miles without a really good oil testing program...
With a good test program you will know if engine is haven wear issues or internal issues based on oil samples testing..
Amzoil is a awsome product but i see some spilled snake oil over the floor..
You got it,a truck brought it!!
Last edited by bighemi04; 12-27-2012 at 03:39 AM.