
Finding a mysterious puddle underneath your car can be alarming, but it isn't always a serious issue. It's important to first confirm that the leak is coming from your car, as it could be fluid from another vehicle. If you can confirm it's your car that's leaking, the next step is to identify the type of fluid and the source of the leak. This can be done by observing the colour, smell, and location of the leak. Common car fluids include water, motor oil, transmission fluid, coolant, gear oil, and power steering fluid. While some leaks may be minor, others can indicate significant problems that require immediate attention, such as a transmission fluid leak, which can cause your car to stop running altogether.
| Characteristics | Values |
|---|---|
| Colour | Red, reddish-brown, light pink, light brown, dark amber, honey, clear |
| Smell | Sweet, burnt, fish oil, burnt cooking oil |
| Consistency | Thick, water-like |
| Location of the leak | Power steering reservoir, hoses and tubing, fuel tank, middle or front of the vehicle, exhaust, under the car |
| Cause | Loose connection, crack, broken seals, failing gaskets, wear and tear, condensation, combustion, low oil pressure, coolant leak |
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What You'll Learn
- Water dripping from the exhaust may indicate a good mileage and a well-functioning engine
- Reddish-brown liquid leaking near the power steering reservoir could be power steering fluid
- Red fluid leaking in the middle or front of your vehicle is likely transmission fluid
- A clear, water-like liquid is likely just water, especially in humid climates
- A small oil leak may not be a big concern, but you will need to check your oil pressure and levels frequently

Water dripping from the exhaust may indicate a good mileage and a well-functioning engine
Water dripping from a car exhaust is usually normal and is nothing to worry about. It is a natural occurrence of the combustion process, which involves the conversion of a hydrocarbon to carbon dioxide and water. When the exhaust system is cold, it cools the exhaust enough for water to condense and drip. After a while, the exhaust system heats up, and the water vapour stays as vapour and does not drip.
This phenomenon is more noticeable when the outside temperature is cold, and the engine has not been running for long. In warmer weather, the water vapour will be released as steam. It is important to note that if the engine is releasing white smoke with a strong burning smell, it could indicate an oil leak.
Water dripping from the exhaust may indicate good mileage and a well-functioning engine. This is because the water dripping out is a sign of complete combustion, meaning the air-fuel mixture is being completely burnt. This results in a more efficient release of energy, leading to better mileage.
However, if the car's engine is discharging a large amount of water, such as a cup of water per minute, it could indicate a deeper problem. Additionally, if the water is not clear, it may be antifreeze leaking from a damaged gasket in the engine. Therefore, while water dripping from the exhaust is generally a positive sign, it is important to monitor the amount and colour of the water to ensure there are no underlying issues.
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Reddish-brown liquid leaking near the power steering reservoir could be power steering fluid
If you notice a reddish-brown liquid leaking near the power steering reservoir, it could be power steering fluid. Power steering fluid is hard to characterise as different manufacturers use different types, but it typically ranges in colour from light to dark amber and smells like burnt cooking oil. However, when the fluid appears brown or has a burnt smell, this indicates ageing or contamination, which can eventually harm the power steering pump.
Power steering fluid helps ensure that you're able to turn the steering wheel easily. If there's a fluid leak and the fluid is depleted from the system, it will take much more effort to turn the wheel. This can lead to discomfort, especially in the arms and shoulders. It can also be dangerous, especially at lower speeds when you need to make tighter turns.
Several issues could lead to a power steering fluid leak. Some of the leading causes include worn seals, damaged hoses, pump problems, and poor connections. Seals surround the power steering pump and are prone to deteriorating over time. Hoses can crack or split as a result of the constant pressure they're under. Power steering fluid relies on a pump to transport it from the tank to the steering wheel, and over time, the pump may fail, leading to leaks. Loose or failing fittings around the pump or hoses can also cause fluid leakage.
If you suspect a power steering fluid leak, you should first check the fluid levels to see how serious the leak is and how low you're running. You can do this by popping open the hood of your vehicle and checking the tank. If it's low in fluid or absent of fluid, your suspicions are likely correct and you should seek service. You can also diagnose a power steering leak by taking note of any signs and symptoms. Some common signs and symptoms of a power steering fluid leak include a steering wheel that has become more difficult to turn and unusual noises, such as whining or squealing, when turning the wheel.
If you can't fix the leak yourself or it's more than just a few drips, you should take your car to a local garage and let a mechanic take a look. This will help prevent the leak from causing any lasting damage to your car.
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Red fluid leaking in the middle or front of your vehicle is likely transmission fluid
If you notice a red fluid leaking in the middle or front of your vehicle, it is most likely transmission fluid. Transmission fluid keeps your gears shifting smoothly and is vital to your vehicle's operation. As the fluid ages, its color can range from a light red to a dark, almost brownish-red hue, and it may have a sweet, burnt, petroleum-like smell.
It is important to identify the source of the leak and get it repaired as soon as possible. Transmission fluid leaks can be caused by broken seals, cracked fluid lines, failing gaskets, or general wear and tear. If left unattended, it can lead to severe issues, including transmission failure.
To identify the source of the leak, you can start by checking the fluid levels and inspecting the underside of your car for any signs of leakage, such as a trail or shine on the components. You can also slide a piece of white cardboard or plywood underneath your parked car to capture the drips and get a better idea of the type and extent of the leak.
If you suspect a transmission fluid leak, it is recommended to avoid driving your vehicle to prevent further damage and potential safety hazards. Instead, have your vehicle towed to a professional mechanic for proper diagnosis and repair.
While it may be tempting to ignore minor leaks or attempt quick fixes, it is always best to consult a professional. They can accurately identify the source of the leak and make the necessary repairs to ensure the safe and efficient operation of your vehicle.
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A clear, water-like liquid is likely just water, especially in humid climates
Water dripping from a car is not necessarily a cause for concern. A clear, water-like liquid is likely just water, especially in humid climates. Water dripping from the exhaust of a car is a natural occurrence of the combustion process. When the exhaust system is cold, it cools the exhaust enough for water to condense and drip. After a while, the exhaust system heats up, and the water vapour stays as vapour and doesn't drip. Therefore, you will usually see water dripping from the tailpipe when the engine and exhaust system of the vehicle are not completely warmed up. When the system is hot, you won't see any drips from the tailpipe, and the water will come out as steam.
Water dripping from a car can also be a result of the air conditioning system getting rid of excess water. On particularly hot and humid days, water may drip from a rubber hose near the middle of the automobile until all the excess moisture is removed from the passenger cabin. This is supposed to happen and does not indicate any mechanical problems.
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A small oil leak may not be a big concern, but you will need to check your oil pressure and levels frequently
A small oil leak may not be a big concern, but it's important to stay vigilant and check your oil pressure and levels frequently. While a small oil leak may not warrant panic, it is still something that should be addressed to ensure the longevity of your vehicle. Here are some steps to identify and manage a small oil leak:
Identify the Source of the Leak
Before concluding that the leak is from your car, it's important to confirm that the fluid puddle indeed belongs to your vehicle. If you notice a leak stain that wasn't there before, take a flashlight, get down on one knee, and inspect the underside of your car for signs of leakage, such as a telltale shine or trail on a component.
Determine the Type of Fluid
Place a piece of white cardboard or plywood underneath the car to capture the drips. This will help you identify the type of fluid leaking. Common fluids that can leak from your car include water, engine oil, transmission fluid, coolant, gear oil, and power steering fluid. Each of these fluids has distinct characteristics, such as colour and smell, which can help you identify them. For example, engine oil ranges in colour from light brown to dark amber, while coolant often has a distinct odour.
Check Oil Levels and Pressure
If you've confirmed that the leak is due to engine oil, it's crucial to regularly check your oil levels and pressure. Driving with low oil levels can lead to engine damage and overheating. Keep a close eye on your oil levels and top it up as needed to ensure your engine stays lubricated and functioning properly.
Seek Professional Help
While a small oil leak may not be a significant concern, it's always a good idea to consult a trusted mechanic. They can assess the severity of the leak and provide guidance on repairing it. Additionally, they can inspect other components of your vehicle to ensure there isn't any lasting damage caused by the leak.
Remember, while a small oil leak may not be an immediate emergency, taking proactive measures to address it can help prevent potential issues down the road. Regular maintenance and staying vigilant about fluid leaks and levels will contribute to the overall health and longevity of your vehicle.
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Frequently asked questions
If you notice a leak stain under your car, it's important to first confirm that the fluid is coming from your car. Use a flashlight to look under the car and check for signs of leakage. You can also slide a piece of white cardboard underneath the car to capture the drips and identify the liquid.
There are several fluids that commonly leak from cars, including water, motor oil, transmission fluid, coolant, gear oil, and power steering fluid. Water leaks are especially common in humid climates due to excess moisture in the air conditioning system.
Transmission fluid is typically light pink in colour and may leak from the middle or front of your vehicle. If you notice a red fluid leak, it's important to avoid driving as it could cause further damage and be a safety hazard. Get your car checked by a mechanic as soon as possible.
Power steering fluid can range in colour from light to dark amber and may have a burnt smell. A leak can cause issues with your steering, making it difficult to turn the wheel. Check your fluid levels and get your car inspected by a mechanic to identify any issues with hoses or tubing.
Yes, it's normal to see water dripping from the exhaust when the engine and exhaust system are not completely warmed up. This is a result of the combustion process and condensation, and it typically stops once the system is fully heated.














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