what are you 'oiling" everything with?? Something that has helped in a few vehicles that I had that squeaked, especially the ones with poly bushings, was this mixture instead of regular sprays....
Get some of the dry powder graphite like the stuff in the little tube meant for the door locks and mix it (shake it up real good) with rubbing alcohol, save the good stuff for the drinks...lol. Spray it on all the bushings generously. The alcohol gets the graphite into more spots then normal oils/sprays, and unlike when regular oil/sprays that get there but then drips out, the alcohol quickly evaporates and the graphite lube stays put.