Is oil bad when it turns brown? Studies show a positive link between color and quality. Darker oil indicates more degradation.
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Signs of Contamination
Brown or grayish oil with a milky or foamy consistency might indicate contamination. It could be due to a coolant leak.
Read More: What to Do if Engine Oil is Milky?
Normal Color Change
New oil is clean and golden but darkens to brown or black with use. This darkening is a normal part of the oil aging process.
Emergency Signs
If the oil is black and sludgy, it’s a sign that it needs to be replaced immediately to prevent damage to the engine.
Reasons for Milky Brown Oil
Milky brown oil is often a result of water contamination. This can happen when water mixes with the engine oil due to a coolant system issue.
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What to Do Next?
If you spot brown engine oil, it’s best to have a professional mechanic inspect the vehicle to determine the root cause and take appropriate action.
Conclusion
Engine oil turning brown is a common occurrence in vehicles due to the aging process. While normal in most cases, it’s essential to be cautious and address any signs of contamination promptly.