From researching past posts it seems that detergent containing synthetics such as Mobil 1 may be harmful. Because the detergents would loosen good resins adhering to crucial components keeping the engine tight within factory specs. It seems intuitive to have some amount of "protecting" gunk on all parts of the engine exposed to frictional wear. Therefore, could it be more wise to stay with a non detergent containing oil and just change the oil at shorter intervals?