I have my second Intrepid, awesome cars!! I have an 04 SXT with the 3.5 engine. What your freind is telling you is that the Intrepids with the 2.7 V-6 engines did have a problem with making the oil sludge faster because the PVC was routed back into the oil pan, you have to change your oil every 3000 miles or it will sludge. Now if you have the 3.2 or 3.5 engine you have nothing to worry about. Also the 2.7's are famous for all their timing chains breaking. They have to be changed every 100K miles of they will break, this is a fact! Check which engine you have and take care of her. My first Intrepeid I got 300K miles out of that car. Have fun with her. I love my newer Intrepid.