around 32000 miles i stared hearing a whine noise, sounded like a a belt or a pulley, possibly alternator, or power stearing. It started off very low and then became louder. At Idle you could hear it in the truck, once moving it still made noise but exhaust hid it a little. I finally brougt the truck in under warranty at almost 36000 miles. The dealer called me and told me my (cheap) FRAM oil filter collapsed and was causing the whine,. They also tried to tell me that my oil had not been changed in at least 15 -20 k and showed me a shop towel that had hard dry grease on it and said that was my oil, and tried to sell me a motor flush. I said no. They were lying. but he then told me that the oil he put is was synthetic (at my request) and it was fine till 42k.I changed at 40k anyway because I started to hear the wine again. It went away and it had a nissan filter. I tried a different brand filter and again by 47k I had the whine again, I changed again and now I have 51k and the whine started at about 50k.. I am running castrol syntec blend, and try differnt oil filters, has anyone ever heard of this???