Hello

question for you guys
I have a 2005 aveo 1.6 L , Auto ect...

not problems so far has all uptodate fluids, spark plugs, air filter ect...and a really clean engine...
the other day i noticed that there is a slight squeak...it comes and then it goes and in the serpentine belt area its a bit louder in noise now too...

its not as bad as some belts that you Really hear but it seems as if something is loosing its grease slowly.....
I looked at the serpentine belt it does not look cracked, seems tight but that is the extent of my knowledge ....
Any ideas ? The car has 51000km (31000miles)
Its out of the Bumper to bumper warrenty but still has the power train ect......However Gm likes to charge a good 80 diagnosis fee only to probally tell me that its nothing yet....
:S