Leaking Fluids

by | Mar 17, 2020 | Best Practices

What’s that stain under my car?

7 Stains that indicate car Problems

Your car runs on many more fluids than just gas. There is a wide variety of liquids that keep your car on the move, and all of them can leak. To help you make sense of any stains under your car, here is a complete, color coded list of what various liquids do and what it could mean when they’re leaking.

If you see any of these under your car, it’s time to visit your trusted car repair professional.

1. Red or pink fluid

If you see red fluid under your car, it’s most likely the transmission or power steering system. Both are extremely important to your safety, so if you see red liquid, it’s best to take your car in for an inspection. The problem could be as simple as a pinhole in a hose or a faulty transmission seal.

2. Orange fluid

An orange stain might also be transmission fluid, but it could be rust in your radiator that is tainting and staining other liquids, such as antifreeze. Either way, orange liquid leaking from your car is a red flag.

3. Yellow fluid

Yellow liquid under your car is most likely radiator coolant, possibly from a loose hose or another damaged component. It also could be that you’re using the wrong coolant: different cars use different types of coolant. Using the wrong brand of coolant in your car can lead to leaks. If you need assistance, check your owner’s manual to determine which coolant works best in your car. Or, call up HEART Certified Auto Care. We’re always happy to help.

4. Green fluid

Fluid with a greenish hue is most likely antifreeze, and it could be leaking from your radiator, water pump, or other parts of your coolant system. As mentioned above, you may be using the wrong coolant or antifreeze.

5. Blue liquid

Blue liquid under your car is most likely windshield wiper fluid. This type of leak is less urgent than some of the other issues discussed here, but definitely something you want to rectify. We suggest stopping by HEART Certified Auto Care for a free inspection.

6. Light brown liquid

This fluid is most likely motor oil or another lubricant. You can tell by its viscosity, how thick and sticky it is, and odor. If you see any grease or oil under your car, especially in large amounts, it’s definitely time to find a car repair shop near you. Leaking oil can lead to your car overheating, a breakdown, or worse. Save yourself the time, cost, and worry by having it repaired ASAP. And, while you’re at it, have an oil change, too. Because a leak can lead to contamination of all the oil in the system.

7. Clear liquid

Breathe a sigh of relief, because clear liquid coming from your car is most likely completely natural condensation from your air conditioning system. It’s nothing to worry about.

For help with leaking cars or any other auto repair, visit or call HEART Certified Auto Care. We have three convenient Chicago area locations — HEART Northbrook, HEART Wilmette, and HEART Evanston — and are happy to help in any way we can. Because we do more than repair cars; we restore your faith in the entire profession.

Fuel Efficiency Tips

Everyone looks for ways to save money on gas. And you can, easily, by following these ten ways to use less gas, decrease emissions, and increase fuel efficiency. Don’t...

Four Belts on Your Car Engine that Are Important

Do you know which belt does what? Drive belts are integral components of a vehicle’s engines and are regular auto maintenance items. Signs that it’s time to investigate your...

What to Do If You Fail Your Emissions Test

What is an emissions test? In order to be registered in the state of Illinois, your vehicle must pass an emissions test. This test is required to ensure all vehicles meet...

How Much Oil Does Your Car Need?

Oil is the lifeblood of your engine Oil is crucial to the proper functioning of your car's engine. It helps lubricate vital engine components, reducing friction between...

Top Questions to Ask Your Mechanic

It's never fun when you notice something is wrong with your vehicle. You're driving along and you hear an odd noise, smell a peculiar odor, feel vibrations in the steering...

How to Jump Start Your Car

Whether you left the lights on overnight or you simply have an old battery, no car will be able to start if its battery is drained. If you turned the key in the ignition and...

Car Electronics Trouble Shooting

How to tell if your car's electrical system is on the fritz. Your car runs on more than gasoline. A tremendous amount of electricity goes into moving you from point A to...

Motor Oil Change Warning Signs

Oil and other engine lubricants are the lifeblood of your vehicle. They are essential to its proper functioning and critical to its efficient operation. However, you may be...

Oil Changes

What You Need to Know about Oil Changes Two of the most common automotive questions are “How often should I change my oil?” and “When should I change my oil?” To take the...

Check Engine Light

Why is Your Check Engine Light On? The check engine light. Is there a more mysterious auto part? What does it even mean when the check engine light is flashing? The short...
[[[["field11","less_than","09 00 am"],["field11","greater_than","04 30 pm"]],[["hide_fields","field18","09 00 am",null,"field11"]],"or"],[[["field11","greater_than","09 00 am"],["field11","less_than","04 30 pm"]],[["show_fields","field18"]],"and"],[[["field17","equal_to","Evanston"]],[["email_to",null,"craig@heartautocare.com"]],"and"],[[["field17","equal_to","Wilmette"]],[["email_to",null,"James@heartautocare.com"]],"and"],[[["field17","equal_to","Northbrook"]],[["email_to",null,"frank@heartautocare.com"]],"and"],[[["field27","contains","Other"]],[["show_fields","field26"]],"and"]]
1 Step 1
PERSONAL INFORMATION
VEHICLE INFORMATION
WILL YOU BE USING OUR WAITING AREA WHILE WE SERVICE YOUR VEHICLE?
Time
access_time
*No appointments available after 4:30 pm to 7:00 am
keyboard_arrow_leftPrevious
Nextkeyboard_arrow_right
FormCraft - WordPress form builder