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Originally Posted by GTP Dad
The caramel looking substance indicates moisture in the crankcase but that may be a part of normal driving as some moisture naturally accumulates in the engine if you use it for short drives.
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As many others here can attest, it can also be a sign of your intake manifold gasket leaking coolant in your oil. However with the colder temperatures starting to come about, it may just be plain moisture*. The only way to tell for sure if it is coolant or just moisture is to have it analyized by a lab.
Blackstone Labs can do exactly this for about $20.
Do you notice any change in coolant levels?
As GTP Dad said, posting the code would shed some more light. A blown head gasket would usually have other signs.
*-I just fixed a coolant leak this weekend. I was POSITIVE it was going to be yet another intake gasket leak (I've had 2 in the past year) because I saw some of the gunk in my oil cap as well as several key areas along the intake manifold. It looks like it was just a coolant hose that had a small hole in it that was leaking coolant onto the head/intake/block, and the gunk in the oil cap was just moisture (not coolant). A longer drive allowing the engine to get up to operating temp for a while should drive off most of the moisture that may accumulate.