I replaced my belts a few months ago with brand new gatorbacks and it has been squeeling lately. Whenever I start the engine it squeels for a few seconds or for a very long time, the longer it sits without being driven it just squeels even longer. I tried tightened them but they still squeel so I bought the spray that supposedly gives it more grip but it is still just as bad. I dont really know what else to do because they are new belts and are tightened. I've searched the website but can't find anything useful. Any help would be nice. Its a 2002 supercharged v6.