Q: Oil vapor mixing with antifreeze and backing up into the antifreeze reservoir

asked by on

The oil vapor is mixing with the antifreeze and backing up into the antifreeze reservoir. What is wrong?

From the information provided about your Saturn L300 it appears that oil and coolant are indeed mixing and this is not a good thing. Usually when oil and coolant mix, this is an indication of a leaking or blown head gasket. However, this is a major repair. To be certain that this is indeed the problem your Saturn is experiencing, it is best to enlist the assistance of a certified mechanic to come inspect your antifreeze reservoir, drain it, and locate any leaks that may exist.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Oil vapor mixing with antifreeze and backing up into the antifreeze reservoir

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: Q: Car will turn over but not start.

Hi there. You will need to add a pint of fuel water vaporizer to the fuel tank. There is excessive water in the fuel system and that is why your exhaust is white is if there was water in the...

Q: Q: Transmission?

Hello. Yes, your supposition would probably turn out to be correct on diagnosis. The transmission faults that would account for your shifting problems include faulty, or sticking shift solenoid(s) and/or other valves in the valve body in the transmission. Solenoids...

Q: My car overheated with smoke coming out, I found antifreeze all over the engine and the temperature gauge was high

This can be caused by a number of things such as low coolant levels, a faulty thermostat, or a failing coolant fan switch. As you may know, the coolant fan switch helps to maintain the proper coolant temperature by turning...

Related articles

P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
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.