My car has antifreeze leaking into the oil. Mechanic put stop leak in to buy me some time.?

What signs should I look for before the engine on my 2001 Olds Alero is damaged.My car has antifreeze leaking into the oil. Mechanic put stop leak in to buy me some time.?
Well, it already has some damage (head gasket leak or cracked cylinder head). I think what you mean is more damage. The main thing is to keep a very close eye on the oil, assuming of course it has been changed already. If it starts to look like a chocolate milkshake again, you still have a leak, and the oil won't be able to do it's job. Bearing failure (camshaft, crankshaft, connecting rods) could result. Then you have a much higher repair bill than you're already facing.My car has antifreeze leaking into the oil. Mechanic put stop leak in to buy me some time.?
It is damaged, the antifreeze is mixing with the oil, that means you've got a blown head gasket.





If the gasket fails, a variety of problems can occur, from compression loss (leading to power reduction, or a rough engine), to exhaust gases being forced into the cooling system, leading to the engine overheating and increased engine wear due to the motor oil being mixed with antifreeze. Coolant can leak into the cylinders, causing the exhaust to issue steam and the catalytic converter to be damaged. If a very large amount of coolant does this, hydrolock can occur, causing extensive engine damage. Sometimes, all that may happen when a head gasket is blown is excessive steam erupting from the tailpipe; yet the engine may act and drive like normal, until all the coolant is gone and the engine overheats.





I'd change the oil, change the antifreeze and trade that thing today.
everyone keep,s telling you it,s a head gasket or cracked head...it could also be a cracked block...in any case it,s a major problem...antifreeze/coolant is not corrosive [ if it were it would wreak havoc in the cooling jacket,s in your engine] but it,s not a lubricant either %26amp; will interfere with the oil,s ability to do just that...change your oil %26amp; filter...the stop leak may work for a while but I,d start saving for some major repair,s or a new or different vehicle...the only sign,s to look for are loss of coolant %26amp; coolant in the oil...possible overheating...but the damage has already been done...just hope the stop leak does it,s job...hopefully for a long time....good luck!
You most likely have a leaking intake gaskets if its the v6 3.1/3.8 engine. Its a common failure area on gm cars. It's not a good thing and stop leak will probably work as well as cleaning the windows will. I would hurry up and have the repairs performed because the car will overheat and water in oil is a no no. Oil lubricates, coolant doesn't.... not because its corrosive but engine parts use a film of oil to separate parts from wearing on each other...coolant doesn't. If you value the car fix it now....if not drive it until it dies.
Oil in the antifreeze is a huge flashing red light that your engine is damaged. That's it, game over, you have a damaged engine. The coolant and oil are in secluded systems. they don't mix. That means there is a crack somewhere letting coolant into the oil system. and i'll tell you this.. oil lubractes parts in the engine block. Coolant runs through the engine block to keep the engine cool. Now you tell me how oil and coolant get together....ya...through the engine block.


Car's junk.





Edit: I should note my example is worst case and Jcontrol's example is best case...but both cases suck. sorry
Is your oil MILKY???? If not, you should read the ';dexcoolsettlement.com'; web-site and the ';GM Litigation'; web-sites. The GM V6's have a tendency to leak coolant right into the combustion chambers due to chemical reactions between the coolant and the gasket material used. If this is NOT your problem, then remove your spark plugs and watch their colors. A disclolred plug will indicate which cylinder is having trouble. At this point, you might try to re-torque your head gasket. This might re-seal it and fix it. If not, then you have some money to spend!!!
Well, water and oil don't mix so your car isn't going to make it too much longer. Besides, coolant is a corrosive liquid and will eat away at the metal in your engine. You need to get this fixed asap and get an oil change to flush out all the coolant.
What signs ?? How about the Green engine Oil ???


It already is Damaged... Stop driving it until you find the problem before you end up costing yourself an engine.....





Possible causes :





1. Head gasket


2. Cracked cylinder head


3. Cracked cylinder block
You have a head gasket going bad or a small crack in a head which can get worse quickly! The only way to be sure is to disassemble the top end of the engine! ;-(=