The oil change notice that appears on dash in some new cars is a simple program inside the cars main computer.
Anyone can reset that including the oil change place and the owner of the car.
Every 3,000 miles.
And not to digress too much, some don't have a clue when to change the automatic transmission fluid. That should be done every 2 years minimum.
Some/few newer automatic transmissions have "lifetime" fluid. With no dip stick. But whose lifetime? Again, some state 100,000 under normal conditions OR 60,000 miles under severe conditions. Again, the issue as mentioned above - what is severe?
Just stick to every 2 years.
Make sure the pan is dropped, cleaned, new gasket, and new or cleaned transmission filter. Some of the quick lube places and others use a pump to remove transmission fluid and never clean the pan or replace the filter. You do actually have to ask.
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