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Dipstick oil color question

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Old Mar 15, 2002 | 03:21 PM
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Default Dipstick oil color question

This is not a C5 only question, sorry. I would have put it in off topic, but I don't have pictures of women to go with it so I thought it would fit better here.

The dipstick in my daily beater has recently acquired a mixture of rust red, and white film along with the oil. What does this mean and should I do anything about it?

My dad's 83 Ford wagon had this for years and it continued to run, but I would like to know what it is.

Thanks!
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Old Mar 15, 2002 | 03:27 PM
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Default Re: Dipstick oil color question (Square)

Kind of sounds like you've got coolant leaking into the oil. What's the coolant look like?
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Old Mar 15, 2002 | 03:33 PM
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Default Re: Dipstick oil color question (Jerry Velders)

Jerry,

The radiator and water pump have been replace recently(last couple of years), so the coolant is pretty clean.
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Old Mar 15, 2002 | 04:58 PM
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Default Re: Dipstick oil color question (Square)

Sounds like coolant. Probably a leaking head gasket. You can do a compression check on the cylinders and a leak-down test on the coolant system. What does the oil look like when it's drained out?
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Old Mar 15, 2002 | 07:44 PM
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Default Re: Dipstick oil color question (Square)

Any oil in the coolant? If you take the radiator cap off (when the engine is cool) you can look to see if you are getting bubbles in the coolant while the engine is idling. It very well could be a blown head gasket.
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Old Mar 15, 2002 | 08:30 PM
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Default Re: Dipstick oil color question (Square)

Square,

I does sound like you have moisture in the crankcase, but depending on the season of the year it may just be from condensation. What are your driving habits? Lots of short trips? If so you may not be getting the engine hot enough for a long enough period of time to boil off the contaminents.

Good luck.
Mark
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Old Mar 15, 2002 | 08:34 PM
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Default Re: Dipstick oil color question (Square)

A milky film in the oil is a sure sign of water in it, look into it very soon! :cry
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