Well, I can tell you that GM's seem to not care how hard you drive the car. In the 2 years I've owned my Solstice, it's been exactly 5000 miles for the oil life to be 0%. My Trans Am's "oil change" light came on at 3500 miles. I had that for 4 years and I can tell you that it was always the same mileage (By the sticker).
I don't see oil-life indicators ever being smart enough to work the way we'd expect.
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2002 Corvette Z06 - Totaled
2003 Corvette Z06 50th Anniversary
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