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It seems like the oil color on my dipstick is turning increasingly ugly, meaning it's a brown/dark burnt color, while it was more yellowish in the earlier days. 3 months old car, 2.5k miles.

Should this be cause of concern?
 

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Nope. Completely normal. When you write out the formula for internal combustion there are carbon molecules left over. Since carbon is naturally black on a molecular level this is why motor oil turns dark over time when pumped through an engine.
 

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oil is suppose to change color as it ages with the car.
 
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