Question about 2001 Buick Century

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Oil getting into coolant/2001 buick cetury

Coolant seems brown in colour

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If You ever overheated the car perhaps You blow the head gasket, look at Your transmission fluid color, perhaps your radiator is broken inside and is letting auto tarns.fluid in to Your coolant system or both if you find coolant in Your transmission

Posted on Jan 22, 2009

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Have you had any Problems with the Motor???? If not, You just need a Radiator Flush and Fill. You really need one anyway to find out if there is a Problem that you cannot see Otherwise.

Posted on Jan 22, 2009

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1 Answer

Oil is in the front of my car!


what color is the fluid? redish brown is trans or power steering, green(ish) or orange(ish) is coolant, dark brown or black(ish) is engine oil.

Dec 12, 2012 | 1996 Buick Century

1 Answer

My Buick Regal used 2 quarts of oil in 3,000 miles. When I was adding oil I noticed that my coolant reservoir (which had been bright green at my last oil change) was now brown and oily looking. I have...


You seem to have a bad head gasket. Check the exhaust,while running,to see if white smoke is
pouring out.Get it checked out ASAP,since you don't
want to severely damage the engine any further.
Good luck.

Apr 01, 2010 | 1995 Buick Regal

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Coolant has oil in it. The fluid in the radiator is a brown color . What to do????


get it flushed out and replaced with new coolant but it looks like early signs of a head gasket starting to go .after flushing keep an eye on color if its the same brown color two weeks later you have a bad head gasket.

Feb 10, 2010 | 1995 Buick LeSabre

2 Answers

I have an 2001 Mercedes-Benz c240...What color should the coolant be that is used in this car. I paid to have it flushed but the coolant in it looks a greenish-brown color...is this right? Not sure they...


Hi. apparently the mechanic did not rinse the contents out completely after the flushing was administered. During the flushing of a radiator, there may be a good amount of debris that will build up, due to the flushing compounds effect on the crude inside the radiator. This is why there should be a rinsing stage to clean out all that is removed, via the flushing procedure. If the rinse is not done correctly, some of the contaminates will be left behind to mix in with the new radiator fluid. The rust/debris will mix contaminate the new fluid that is poured in, thus, causing the brown color you have noticed.

Most radiator fluids will be green, or orange in color, but never brown or greenish brown. This greenish brown will indicate that there is some rust deposited that were not rinsed out properly, after the flushing of the radiator. I would return the vehicle to the mechanic to request a re-flush of the radiator. They should do it for free.


NOTE_ A more serious issue will be a damaged oil cooler. this will cause the same symptoms within the color of the fluid, if your vehicle is equipped with this device. Once the oil cooler has ruptured, it will cause the engine oil to be transfer into the radiator, thus, changing the color of the fluid.

Dec 03, 2009 | Mercedes-Benz C-Class Cars & Trucks

1 Answer

On a 2.5 range rover does the coolant and gearbox oil flow through the one radiator


No the coolant radiator is a sealed system, oil and water do not mix; as far as I am aware manual gearboxes do not have coolers.

If you have oil in your coolant water this will be an engine problem. Check the engine oil is not frothy and caramel coloured.

If your gear box oil is is a brown colour or dirty looking, this is due to water ingress, either through the breather hose or seals, try changing the fluid. If you can check the seals and breaher hose.

Suggest you get a owners manual and Haynes or workshop manual.
There are plenty of free files on line, do a search on Google, Alltheweb, Lycos, etc

Sep 11, 2009 | 1995 Land Rover Range Rover

2 Answers

What color has to be the coolant of my car buick 2001 ?????


get some DEX cool antifreeze....its compatable with any other coolant

Aug 16, 2009 | 2001 Buick Century

1 Answer

Rad fluid loss with no leak ...


Check your engine oil. see if the oil level is higher them usual and the condition of the oil. The oil should not like brown and milky in colour,  check under the oil cap to see for water condensation and the PVC valve to see if there is any sludge formation.
If there is then your coolant is leaking in to your engine which may mean a bad intake gasket. 
Goof luck and keep me posted.

Jun 01, 2009 | 2004 Subaru Forester

1 Answer

Jeep Cherokee 2.5td overheating


AIR IN COOLING SYSTEM. NEED TO FLUSH COOLANT AND RUST OUT OF SYSTEM AND INSTALL NEW COOLANT WITH A NEW CAP

Mar 22, 2009 | 2001 Jeep Cherokee

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