What causes engine oil to turn dark quickly?
I know that oil gets darker over time, but I feel like it’s happening in my engine way too fast. I changed my oil, checked it a few hours later, and it was already brown. What might cause engine oil to turn dark so quickly?
Answer provided by
Excellent question! Actually, a few hours is more than enough time for your engine oil to take a brownish hue—it really only takes about 30 seconds! The color change is because the oil picks up the grease and grime that occurs naturally in your engine.
A dark brown coloring in your oil is nothing to worry about. Even oil that is almost black isn’t too serious as it’s caused by soot which isn’t harmful unless it builds up too much. Your engine will naturally produce soot over time. If you think it’s producing too much, you may want to have a mechanic examine your injection system
It’s important to keep a close eye on your car for signs that something might be off—even if it turns out to be nothing serious. It’s also important to keep a close eye on your [car insurance[(https://getjerry.com/car-insurance) policy and review your coverage at least once a year.
Jerry, the free car insurance comparison app, can help you with that review. It can also help your search for better deals and witch you over. Even better, the average Jerry driver saves $800+ per year on their car insurance!
MORE: How to test an oil pump
Here to save on car and home insurance? Great, you do that. We’ll do everything else.
Sign up in under a minute.
No need to fill out forms or shop around. Sign up in 45 seconds to start saving. Jerry does the rest.
Jerry collects and analyzes your current coverage.
Say hello to Jerry, your new insurance agent. We’ll contact your insurance company, review your current plan, then find the coverage that fits your needs and saves you money.
Get the best options before your renewal.
Jerry does all the picky, busy work by comparing prices and coverage from more than 50+ insurance companies. We compare what we find to your current policy and offer you the three best options before every renewal.
Read advice from car experts at Jerry
Browse by topics
What others are asking
How much cobalt is in an electric car?
I want to buy a new electric car, but I’ve heard about some questionable sourcing practices involving cobalt in the Congo, etc. Are electric cars still using cobalt? How much cobalt would you say is in an electric car?
Apr 28, 2022
What car battery voltage is too low?
I’m driving my fairly ancient 2005 Pontiac Sunfire to Maine for a holiday this summer. I want to make sure my battery doesn’t give out during my road trip. What’s considered too low for car battery voltage?
Apr 28, 2022
What color should my car’s oil be?
So, I’m not an expert on cars or anything but I checked my oil today and I think something is off. My oil is a very deep black and it’s thicker-looking than I think It should be. Or maybe that’s how it’s supposed to be. I don’t know. What color is engine oil supposed to be?
Apr 28, 2022