Originally Posted By: FuQ2
Now my question is there any harm other than my wallet from over changing oil and filter?
It's not hurting anything but your wallet, but it's also buying you absolutely nothing. Realizing that the true cost of your oil change is what you paid plus the opportunity cost of your time, it may be worth looking at what your 3K oci with m1 is getting you relative to the cost. No benefit whatsoever vs real costs in terms of oil and the value of your time would seemly call your current regime into question.