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Depending on the type engine there are different answers:
Every engine:- Head gasket failure, from over heat or warp-age or just failed
- Some auto engines have the pump mounted on the timing cover so the gasket can fail and pump coolant into the oil
- Many V configuration engines can have an intake gasket failure and cause this
- A casting "porosity" meaning the metal itself can leak
- All of the above
- These engine have an oil cooler that takes coolant and runs it through a "radiator" with oil to cool the oil. As they are Bolted together they can leak oil into coolant and coolant into oil.
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∙ 12y ago
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Will oil in antifreeze hurt car?
no but antifreeze in oil will eat the bearings
Is oil heavier than antifreeze?
No, oil is lighter than antifreeze.
Is it safe to drive a vehicle that has oil going into the antifreeze?
NO! Take it to a mechanic immediately. Call AAA at once, if you are a member. Oil is not antifreeze and antifreeze is not oil!
How can you tell if antifreeze is leaking into your engine?
Look at the oil on the dipstick. If you have antifreeze leaking into the crankcase the oil will be milky.
What are the effects of antifreeze mixing into the engine oil?
A bad head gasket is the most common cause of antifreeze mixing in the oil. The antifreeze will dilute the oil and it will eventually cause your engine to seize up.
3.4 liter engine in a 2003 Malibu is getting oil in the antifreeze but not antifreeze in the oil?
Intake gaskets have failed.
Cream colored paste in antifreeze?
Could be oil mixing with antifreeze indicating a bad head gasket Are you losing motor oil?
What happens if you put antifreeze in the crankcase?
vehicle will overheat. just dump the oil and antifreeze , flush engine and refill with clean oil
How do you fix antifreeze leak on a 92 Buick Roadmaster?
antifreeze leaking into the oil pan
Why do you have antifreeze in your oil?
a blown head gasket
Why is oil in a cars antifreeze?
cracked head
Can antifreeze in the oil hurt bearings?
yes
