Q: Oil in coolant

asked by on

There is oil in the coolant.

First, you have to determine if it is engine oil or transmission fluid. If you have an automatic transmission, then there is a heat exchanger in your radiator. Transmission fluid runs there in two hoses. If it cracks, you will get transmission fluid in the coolant, and coolant in the transmission. If it is engine oil, check the dipstick and see if there is coolant in the oil. It will look like brown foam. This is most likely a cracked head or bad head gasket. A qualified mechanic from YourMechanic can come out and diagnose your issue, locate any leaks, and make any necessary repairs.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!
  1. Home
  2. Questions
  3. Oil in coolant

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Car shakes and turns off

Hello. There are many factors that can cause a car to stall upon start up. You could be experiencing a fuel supply problem or a fault with a sensor in the engine management system. The first step with any drivability...

Q: 97 cavalier flooded with fuel due to a fuel injector missing a o-ring. No start no crank

If you have already found the reason for the fuel flooding the cylinder then you will need to remove spark plugs and disable ignition and turn over motor to get out excess fuel. Then you will need to replace the...

Q: What kind of sealant if any do i need for the oil filter adapter gasket

I would not recommend using any sealer other than Ultra Grey by Permatex. When you remove the housing if you have a paper type gasket use the sealer, but if the gasket is a rubber o-ring then do not use...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.