Quote:
Originally Posted by skyship007
The engine oil in a petrol engine should defintely not turn black, even after 10K miles, ... Petrol engine oil does turn a sort of dark brown in some cases, but often looks like new oil when changed.
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Haha, amazing isn't it, how experiences vary. Apart from a few commercial vehicles, I've always run petrol cars. And I've yet to find one whose oil doesn't turn black, or at least very dark brown. On the dipstick it looks golden, but put it in a jar and it's nowhere near as transparent as when it went in. I usually change mine annually, and I've been using 10/40 semi-synthetic.