Sigh!.!......

Penny wise and pound foolish.

I worked at North Texas State University back in the seventies. There was a high level professor there who absolutely insisted that there was no reason whatsoever to change oil at any interval. You would think someone with enough intelligence to earn a PHD would be able to listen to reason.

His work car was a little red Japanese car of some sort. I don't know how long it lasted, but I do remember that when I left there to work elsewhere the car was "blue smoking."

Have a great day,
Change oil hot and change oil often,