There have been other threads about the infamous Hemi valve tap. Some saying this is normal. No it isn't. I have an '09' RT with 30,000+ miles on it. Never had any problem with the car. I just had a 1800 mile round trip from Philly to Birmingham, Ala. (Before the disaster down there). While down there the motor developed a bad tapping sound. Now I was sounding like a 10 year old Mustang. I took it to the dealer(obviously had no choice). Service manager said it might be an exhaust leak, but they would have a look at it. Just to be on the safe side, I brought along a copy of all my maintenance records (since I do all my own work), just so they couldn't say it was maintenance (or lack of) which caused the problem. Also a letter mentioning that outside of a few parking lot dings, the sheet metal had no damages. Just to cover my a*s. Anyway, a day later I got a call from the service dept saying that one of the lifters went bad. He was ordering a new set and replacing all of them. Thankfully I didn't have to go through a whole dance routine with the dealer that it was normal, or it's my fault, etc. I haven't gotten the car back yet, but I hope that everything goes well and I don't have any issues with the service dept. I sure like the Lifetime Powertrain warranty with the '09's. I'm sure that I may have to pay for some fluid replentishment. But that should be all. Oh yes, Mr Service Manager also expressed surprise that I changed oil with Mobil One. He asked why, since the car required Semi-Synthetic at best. I really didn't want to get into it with him on that statement. And this is the same dealership that told me there was nothing in their computer about plug changes at 30,000 miles.