Q: Freeze plug popped out. Anti-freeze mixed with oil what should I do. Scared not sure if I should change the head gasket

asked by on August 02, 2017

Freeze plug popped out. Anti-freeze mixed with oil what should I do. Scared not sure if I should change the head gasket. I know I can just replace the plugs. Should I be worried about the oil and anti-freeze mix

My car has 99000 miles.
My car has an automatic transmission.

Hi there. It really depends on how quickly you noticed the freeze plug issue and how long the anti-freeze and oil have been mixed. If it’s been more than a few days since the initial issue occurred, it’s possible that additional damage has occurred inside the motor. I would start by completely removing the oil and filter from the motor and let it drain for a few hours. Install a new oil filter and oil and replace that after 100 miles or so - which will flush the system of excess coolant. If you discover excessive coolant in the oil after the second oil filter and oil change, then it’s likely the head gasket is damaged.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Car keeps going into limp mode.

Hello. When this vehicle goes into limp mode it is usually because the computer is trying to protect the power train from damage. Most of the time when this happens intermittently it is due to a voltage issue. I usually...

air suspension

Typically, to protect the air compressor motor from overheating, if there is a leak, after so much "run time" the compressor will be locked out. Obviously, the purpose of that control strategy is to prevent the compressor from being needlessly...

350z overheating very quickly.

Overheating can be caused by a number of things such as low coolant levels, a faulty thermostat, a clogged radiator or a failing coolant fan switch. As you may know the coolant fan switch helps to maintain the proper coolant...

Related articles

Top 10 PZEV Cars for Eco-Friendly Drivers
Teddy Leung / Shutterstock.com The whole idea of a PZEV (that is, a partial zero-emissions vehicle), seems paradoxical. You’d think it’d have to either be zero-emissions or not in the category at all. But as contradictory as...
2012 Ford Escape vs. 2012 Honda CR-V: Which One Should I Buy?
SUVs represent one out of every three vehicles sold in 2012, making them one of the most-purchased types of vehicles in the country during that time period. Compact SUVs are a sub-class that are slightly smaller and offer the most...
2012 Ford Mustang vs. 2012 Dodge Charger: Which One Should I Buy?
Technically these two vehicles have wildly different classifications: compact for the Ford Mustang and large car for the Dodge Charger. However, who would consider either one anything other than a muscle car? These cars are meant for speed, fun, and...