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First UOA on this car. It's a new (to me) '94 Miata with a FM II turbo. The car has 140K miles on it, but the motor has been apart at least once, and supposedly not that long ago. The oil is Red Line 10w40 with 7,500 miles which is a lot longer than I'd normally run it. Talked to Blackstone and...

Greetings, long time visitor here, first post, and for that matter, my first UOA. We bought a shiny new gas-powered Mazda6 in October, now with 2,500 miles. Did the first oil change after break-in at 1500. Checked the oil the other day and it was about a quart high and smelled badly of gas so I...