I have had 2 belts squeak and i cant get rid of it! i tried the spray but it only worked for a few minutes and then the squeak was back. its a brand new serpentine belt on alum. pullys...I heard of soaking a belt but what do you soak it in?

 

you might want to post this on the 5.0 or 94 and up mustang forum. They most likely have had the same problem. I just have a v-belt.