An oil leak can be from many different places. They include the valve cover, oil pan, front and rear main seals, and oil pressure sending unit.
engine oil leak
An oil leak is always going to be out of the engine as the engine contains oil and the car does not. I think you are saying you are loosing oil with no apparent leak. If that is the case the engine is burning oil and that is why you see no leaks.
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.
There are a number of places an Oil Leak can occur take your pick.
they leak oil from the oil pump on the front of the engine
It might happen because of a faulty starter gasket.
if your taking about the engine locking up, then it mostly happens because of low or no oil... you might have had an oil leak and lost oil.
your answer is NO...
Oil leaks can be hard to find. Wash the engine good. Keep the oil filled, and look daily for signs of oil, even underneath the engine to see where the leak is.
u will blow your engine oil seals, causing an oil leak and damage to the engine.
Oil can leak from any number of bad gaskets or loose bolts. Clean the engine at a car wash, getting as much grease off as possible. Watch closely for a few days over the entire engine, even under it, to try to find the leak.
Oil pressure as measured by the guage on the dash is usually a measure of the pressure put out by the oil pump and not an indication of a leak or low engine oil level. If you have a leak your best indication of that will be puddles on the ground, on the underside of the engine or a milkiness looking color in the oil (as seen on the dipstick) or in the engine coolant.