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In California, in fact, roughly half of all drivers change their oil every 3,000 miles—or even more often!—despite manufacturers' recommended intervals for new cars that may be a multiple of that number.

And that, says California's Department of Resources, Recycling and Recovery, wastes oil that could potentially have a far longer life.

This is BS. The builders started recommending longer intervals back about 1970(a little sooner I think)because they knew most people traded a car in before it wore out. They did it as a selling point, since it was recommended, when I was a boy and young man, that cars changed oil every 1,000 miles. Stating that you could change oil every 6,000 miles made a good selling point. The fact is however that changing oil every 3,000 miles will make your engine last longer. The only time you should go longer intervals is with synthetic oil.

It is none of the governments business how often someone changes oil. Besides, the oil can be recycled and usually is. No one throws oil away these days what with the EPA waiting to throw your butt in jail if you are caught doing it.

To read this article one would think the oil is just dumped instead of recycled.