Back to all

You Are the Fluid Detective! (Leaking Fluids)

January 11, 2026

When you see some liquid sitting underneath your vehicle, your mind starts churning.  Is that normal? Is that something serious, or did I just spill my drink? Here’s a quick list of what those fluids look, smell and feel like, as well as what they might be. No, we don’t recommend you taste them to verify.

   •    Clear and underneath your air conditioner or under the end of your tailpipe. It’s likely something as simple as condensed water.  This probably doesn’t need immediate attention, but you should keep checking periodically.
   •    Oily, brown, golden or black.  That could be the sign of engine oil leaking.  Oil may also smell if it has been leaking on metal and burning.  This is one you should have checked out fairly quickly.
   •    Green, blue, red, yellow, purple or orange and watery under the engine.  Smells sweet.  May be coolant (antifreeze) and a sign of a leaking radiator, hose or clamp.  Also, could mean your water pump is shot or radiator is broken or cracked.  The more that’s there, the more important it is for us to check it out soon.
   •    Yellow, slippery and smells a little foul.  Could be brake fluid. This is one that you should bring to us quickly to have us inspect.
   •    Red or pinkish and collects under the engine or middle of your vehicle.  Could be power steering fluid.  Here’s another one that should be checked by a professional soon.
   •    Red or brown liquid from around your transmission or between your radiator and the transmission, smells sweet.  You might smell burning from around your engine area, too.  Might be transmission fluid.  Another one where it’s important to have a pro look at it soon.  

Your eyes and nose can be helpful to spotting things that need attention on your vehicle.  When in doubt, head on over to see us so a technician can check it out.  Taking care of it sooner rather than later could save you an expensive repair down the road.

Tuffy Tire & Auto Service Center Lockport
600 E 9th Street
Lockport, Illinois 60441
815-838-3700

More articles from Tuffy Lockport

Don?t Skip Out on These! (Vehicle Maintenance Items You Should Never Postpone)

January 4, 2026

Maybe that little sticker on your windshield is giving you the reminder that its time for your vehicle to have an oil change. Youve thought, Aw, I can skip this one and save myself a little money. When it comes to things you should never ignore on your vehicle, timely oil changes are number one... More

Smooth Operator (Shock Absorbers)

December 28, 2025

When you are comfortably headed down the road, you may not realize how many of the imperfections in the driving surface are being smoothed out, so you hardly feel most of them. You can thank your shock absorbers for a lot of that comfort, and its important to make sure you keep your shocks in go... More

A Clean Sweep (Fuel Injector Cleaning)

December 21, 2025

Your vehicle gets its power from burning fuel, usually gasoline, and it counts on something called fuel injectors to send gas to the engine in a spray that is easy to ignite. Its a precise operation, and when its working well, you have plenty of power and an efficient engine. But after time, con... More