I'm pretty much a hard core old timer. I did switch to 5K changes on my 2004 Tacoma and when I had Dodge Diesel I went 1 a year and I typically put about 6K on it every year.

Now I have a 2019 Chevy Duramax with one of those computer oil life read outs on the LCD screen. It reads about 18% left when I have about 3K miles on it. I bought the 100K extended warranty on it when I bought the truck new as the cost was about the same as one injector pump and I had put 3 of them on my Dodge.
So the oil change is free for me.

I have never known too frequent oil changes to be detrimental to an engine,but dirty oil sure can be.I do a lot of driving on dirt roads an over 50 % of the driving is towing/hauling heavy loads


If God wanted you to walk and carry things on your back, He would not have invented stirrups and pack saddles