Outer Limits 4x4 Board

my 60 series takes a while to get oil pressure up on start up to the point that the fuel pump cuts the motor out because there is no pressure.anyone had this problem and found a fix.

when was the last oil n oil filter changed ?

check and i fnecessary change oil, or maybe idle is to low, my sixtys done this once or twice when i was lazy bout servicing, and my dodgy mates does it 3 or 4 times in the morning, but he doesnt care, he just revs the ring out of the old 2h till she builds up oil pressure

oil changed every 5000