Watch that radio computor !
You have to be aware of this computor. When you play around with the radio, it's easy to reset the oil warning to zero.
On Grand Am, the procedure to reset the monitor to zero could'nt happen accidently. It was much more complicated.
This radio warning is not as safe. If you accidently reset to zero, than you loose all the real data.
Best thing is to follow instructions in the owners book. Weather, type of driving are important factors, so the old formula is still the best for me. 5,000 miles at all time. Than GM would'nt be able to back off from it's warrenties.
It's up to you, but I still do what I did for the last 30 years. 5,000 miles all the time....