One presumes this question refers to an auto engine, and that you are describing water found in the oil. If so, the problem is not a small one. Either the engine block is cracked (most serious) or a head gasket is blown (still serious). Another possibility is a warped engine block and/or head.
A head gasket can be replaced by a good mechanic but depending on the vehicle, it can be quite expensive -- but lots cheaper than another engine or vehicle. If the block is cracked, again, this is quite serious, in many cases requiring a new or remanufactured block.
Auto parts stores sell a variety of products intended to repair head gasket leaks -- including engine sealants -- which may or may not work. Even if they do work, the "fix" probably won't last very long -- but it's probably worth a try.
A different problem is oil found in the car's coolant. Some cars have oil coolers mounted inside radiators, so if the cooler leaks, oil will float to the top of the radiator and form a visible scum. The fix is to replace the radiator.
use leak stop or something. Where is your oil leak?
depends on where the oil leak is at
Depends entirely where the leak is coming from.
you fix the leak
It will continue to leak oil and if you do not add oil regularly it will eventually cause engine damage.
If you have an engine oil leak on your 2002 Peugeot 206 1.4, you can use an oil stop-leak product to fix it.
To fix an oil leak in a 96 astro, first you need to find the leak. Clean the engine thoroughly at a car wash. Watch the engine daily for signs of the oil leak. Once the basic area is found then the process of fixing the leak can begin.
You don't fix the leak on the water tower. It is not part of the island quest.
where's the leak at?
We need to know the source of the oil leak to give you any kind of answer.
You need to identify the leak before you can fix it.
You can't imagine what a broad question you asked. What is the leak and what do you have?
We need to know where the source of the leak is coming from to answer that one.
Yes I can
You have to replace it. They are designed to leak when they are going bad.
You may need to reseal the oil pan
Determine where oil leak is originating to determine repair procedure
Replace the water pump.
by finding out what is leaking
An oil leak problem probably is the sign of a problem in your oil pressure or it could simply be a slow leak. The problem can cost anywhere from $100.00 to $400.00 for an oil pressure problem.
You do not have many choices either replace it or if the leak is not sufficient buy one of those leak fix bottles.
An oil leak at the timing chain means that the seals are defective and must be replaced.
Look for a leaking hose, water pump, or raditor find the leak and fix it.
Depends on where it is leaking.
By replacing the whole gasket.