Brian <spam.is@ikilling.invalid> wrote:
> Of course this makes sense, though I've always wondered about something.
> The oil was sitting in the ground for millions of years. How does
> sitting in my car for 3 more months make it "go bad" faster, especially
> if I'm not driving it a lot.

In low mileage operation, you might not heat up the oil to proper temperature.
Lots of condensation and crud gets to survive that might boil off if you
drove more. Worst case is probably an engine running for five minutes,
then shut off for 8 hours, day after day.

I believe in following manufacturers recommendations, which includes
examining the definition of "severe driving". Mine isn't severe. I rarely
start my car without driving at least ten miles. I often drive 50 miles or
more in one heat cycle. I change oil at 10,000 mile intervals, just like
the book says.

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Clarence A Dold - Hidden Valley (Lake County) CA USA 38.8-122.5