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By the Numbers

What's That Leak Under My Car?

As you are pulling out of the garage this morning, you notice a spot of liquid on the ground. Your heart drops… what is leaking from your car and where is it coming from? To get a better idea of what is going on with your car, you can put a piece of white cardboard under your car to identify the color of the leak and where it is coming from. Then you can compare what you find with the chart below to get a handle on the situation.

vehicle-leaking-motor-oil-from-engine

Brown

Brown fluid leaking from your vehicle is likely motor oil. Newer motor oil will be light brown while older oil is dark brown. An oil leak can be traced to a worn oil gasket, an oil plug that isn’t properly secured, high oil pressure or an oil filter that isn’t put on properly.

Red

Red fluid can indicate that the transmission or power steering system is leaking. Transmission leaks will appear near the front or middle of the vehicle while power steering leaks will be toward the front.

leaking-red-fluid-from-vehicle
vehicle-leaking-orange-fluid

Orange

Orange or amber fluid can indicate a leak of extended-life coolant. Coolant leaks can occur at the radiator, radiator and heater hoses and engine core plugs.

Yellow

Yellow liquid is likely a leak of radiator coolant. Check the radiator hose or it could be traced to an O-ring failure.

leaking-yellow-fluid-from-vehicle2
leaking-green-fluid-from-vehicle2

Green

Green liquid points to an antifreeze (coolant) leak. Antifreeze can leak from the radiator, hoses or water pump. Clean up leaks promptly, antifreeze is poisonous and dangerous to your pets because it has a sweet smell and taste.

Blue

If you notice blue liquid coming from your vehicle, it likely is windshield wiper fluid. Inspect the tubes leading from the wiper fluid reservoir for leaks.

vehicle-leaking-windshield-wiper-blade-fluid
file

Clear

If on a hot day you see water coming from your vehicle, don’t worry it’s just condensation from your air conditioning system.

The content contained in this article is for informational purposes only and should not be used in lieu of seeking professional advice from a certified technician or mechanic.

We encourage you to consult with a certified technician or mechanic if you have specific questions or concerns relating to any of the topics covered herein. 

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