6 most common fluids that leak from a car
The 6 most common fluids that leak from a car are; oil, transmission, coolant, water, differential and power steering. I left brake fluid out because it's not common for it to leave a puddle under your car, if you think you might have a brake fluid leak, call a repair shop before driving your vehicle.
Water dripping from your car
The three H's, hazy, hot and humid, is what causes the most common complaint of fluid leaking from a car. Just like the air conditioner hanging out a window of a home or business, it needs to drain the moisture it removes from the air. An air conditioner in a car works the same way; it removes the moisture from inside the vehicles passenger compartment and drains it on to the ground under the car, via a rubber hose. This hose is usually located in the foreword end of the passenger compartment on the passenger's side (near the passenger's feet area) or the middle of the cabin. If you have a newer minivan or large SUV with front and rear climate control, it's possible to have 2 evaporators and 2 air conditioner drains, one in front and one in the rear.
If you have an oil leak, oil is light amber to dark brown, depending on how well you maintain your car.
Coolant or anti-freeze
Coolant is very tricky now because of all the colors it comes in, it use to be green in most cars but now it comes in a variety of colors, it all depends on manufacturer or vender of the coolant. Honda uses a blue coolant, Toyota has red coolant, GM uses an orange color, and some still use the green color coolant.
Automatic or manual transmission fluid
Automatic transmissions use red or pink fluid, a good sign of a transmission leaking is the transmission will start to slip and eventually the car will not move at all. Manual transmissions use gear oil or regular automatic transmission fluid.
Differential fluid or gear fluid is very thick , it looks like honey but it smells like a heavily greased Mac truck sitting at a truck stop. If you get this stuff on your hands the smell doesn't go away for days. Gear oil is dark brown or dark amber if it's new or clean.
Power Steering Fluid
Power steering fluid is very hard to describe because some manufacturers use transmission fluid and some use their own brand of power steering fluid. Honda recommends their brand of power steering fluid and its color is light amber. Power steering fluid has a unique smell; it smells a bit like burnt oil.
Brake fluid color is clear to amber and it has a smell like fish oil.