Question about 1997 Oldsmobile Cutlass

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I have a 97 Olds Cutlass and it always needs coolant. It appears to be oil in the radiator, either engine oil or transmission fluid. Is there a solution set for this car? I have to add coolant every month. Where is it going? No, it does not smoke, white or any other color from the exhaust. Otherwise, it runs great.

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Substance in radiator could be a sealer put in during manufacturing will be like a paste,would check coolant temp sensor,cooling fan operation and radiator cap 1st.

Posted on Jun 16, 2009

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3 Answers

I have a slight amount of oil in my radiator, I had this years ago and my dealer fixed it and said it was something small. Anyone know what it maybe or had the same experience. Thanks


This is a concern that requires immediate attention. Oil in the coolant or coolant in the oil is an indication that the integrity of the engine has been compromised and a passage has developed between the oil and coolant.

Installed in some radiators is a transmission coil cooler that is connected usually at the bottom of the radiator by two metal tubes. A failure internally of the radiator could breach the separation.

Head gaskets that have coolant pass through openings can also be a failure allowing the liquids to mix.

Look for coolant in the engine oil.
Check for oil level overfull

Look for steam from exhaust

Hope this helps.

Have repair done ASAP at qualified shop
Water in oil
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Oil in water
26313575-w3itrvjrcoc1z5s35x2k3yfd-1-2.jpeg
Head Gasket Failure
26313575-w3itrvjrcoc1z5s35x2k3yfd-1-5.jpg

Oct 16, 2016 | Cars & Trucks

1 Answer

Power steering fluid leaking into engine oil sump, even while stationary


PS fluid cannot possibly leak into the engine oil. They are completely separate systems isolated from one another.

The only fluid that can leak into the engine oil is radiator coolant via a crack in the engine block or engine head or via a damaged head gasket.

On cars with automatic transmissions, there is normally also a separate circuit for cooling the transmission fluid built into the radiator. The oil from the transmission is pumped by the transmission through a second heat exchanger inside the radiator.
This is a separate system but if there is a crack in the radiator where the transmission fluid is cooled it is possible for auto transmission fluid to get into the radiator coolant via a crack in the right area. If auto transmission fluid has got into the coolant an inspection of the coolant will show it.

Sep 24, 2015 | Cars & Trucks

1 Answer

97 mercury mountaineering has oil in the radiator and coulant. Help please!


OK, lets figure out what's happening here. You are seeing "oil" in the radiator and coolant. Chances are it is not engine oil. The inly way engine oil can get into a radiator would be if a head gasket was blown. Even then, oil at those locations is not under as much pressure as the coolant is, so when a head gasket blows, what usually happens id that the coolant ends up in the motor oil and oil pan. Verify this by looking at the dipstick to see if it is extremely full. The oil could look like choclate milk. Also, open the oil filler cap and look for signs of chocolate brown goop. I'm betting you won't find that. This is good, but also bad. What you probably have in you coolant is transmission fluid. The transmission oil is circulated through a cooler located inside the radiator. If this cracks or breaks the transmission oil can leak into the coolant. However, at different times the transmission oil and the coolant are at odd with one another pressure-wise. This means that if you have transmission oil in the coolant, you probably have coolant in the transmission oil. This is very very bad, You will need to have the transmission serviced and possible overhauled to repair the damage. You will also need to flush the trans oil from the coolant system. This will require you to replace the radiator, ALL HOSES as well. Coolant hoses do not play well with transmission fluid . The inside of the hose sort of melts and gets real soft and gooey. Changing the hoses and radiator and flushing the motor should work once the transmissionhas been serviced.

Nov 12, 2013 | Cars & Trucks

3 Answers

The coolant jug has a creamy tan color fluid in it


that means trans fluid or engine oil is getting into cooant system. Not good. Either a leaky trans cooler in the radiator or a blown head gasket. Hope it's the trans cooler

Dec 08, 2010 | 1999 Volkswagen Beetle

1 Answer

How often should engine coolant be changed on a 1989 Olds Cutlass Ciera?


For most of the cars the Scheduled Maintenance Services has to be done at 30K, 60K and 90K. At the second Service at 60K dealers recomend the coolant system to be flushed. The inhibitors in the coolant starts breaking down, and the result might be a corroded radiator, heating core, and a partially clodgged heating core.
The transmission oil can't last for ever too. It starts breaking down at 30K and has to be changed at 60K.
It is a good idea to flush the braking system with fresh brake fluid too. The 60K service is expensive and it is a good idea to be done by yourself. It is not going to hurt your car if you change the rear differential oil too.

Oct 30, 2010 | 1989 Oldsmobile Cutlass Ciera

1 Answer

Transmission fluid level need regular top up and there is no external leak.Fluid color looks white.


If no external leak and the transmission fluid colour looks white, the problem belongs to the automatic gearbox oil cooler. The oil cooler has broke mixing the gearbox oil and coolant causing this milkshake. It's a small radiator core type oil / water heat exchanger. It is cracked inside and transmission oil is mixed with engine coolant. Because the transmission oil pressure is greater than engine coolant pressure, the transmission fluid level drops. See also the coolant colour inside recovery coolant reservoir inder bonnet! It could be like this:

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The automatic gearbox oil cooler type oil / water heat exchanger (oil cooler):

138b4e6.jpg
(In the picture above the transmission oil pan was removed for oil filter replacement).

Oct 29, 2010 | 2005 Audi A4

2 Answers

1990 BMW 735i: oil in the coolant reservoir


If your car is an automatic there would be lines from the transmission to the rad to cool the transmision fluid. Over time the lines inside the rad have been known to corrode and start leaking. This would put oil in your coolant. You would be looking for small steel lines going in and out that would trace back to the transmission. Hope this helps.

Feb 21, 2010 | 1992 BMW 7 Series

1 Answer

97 olds cutlass losing coolant and water getting


might not want to hear this but sounds like a head gasket,check the oil also if the oil is creamy like a light color this is probably the problem

Jan 03, 2010 | 1996 Oldsmobile Cutlass Supreme Coupe

2 Answers

Transmission filter and fluid in 1991 olds cutlass supreme


it all depend on the millage, and how dirty the oil is

if oil very dirty it will be worst for your transmission

Apr 01, 2009 | 1991 Oldsmobile Cutlass Supreme

2 Answers

Need to add transmission fluid to a 1998 Olds Cutlass


The Tranny fluid goes in the Dipstick Hole. You will need a Narrow Funnel for this.

Jan 01, 2009 | 1995 Oldsmobile Cutlass Supreme

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