Anyone know if oil pressure has anything to do with a Detroit series 60 starting ?

I had a starting ( long crank ) problem after sitting for 2 or more days that seems to have fixed itself since a oil change ( old filters came off only 1/2-1/4 full ?? ) other than that it ran perfect before and after the oil change ! ? t

I do not know if the ecm detects oil pressure during startup or not. I know that if it does not detect oil pressure within the first 20 seconds of the engine running then the ecm will initiate a red light fault code and shut down the engine. I guess you would have to contact Detroit and ask them. I cannot see any reason that changing the oil would change the initial oil pressure unless you had not changed it in an excessively long period of time. Then I would have to worry about other major issues.
Wish i could be of more help
Wick