Manual for my 2016 485 HP Mopar says oil/filter changes are mandatory every 6 months,regardless of miles. There are only 2 oils that are approved,one is Mopar and the other is Pennzoil Ultra Platinum 0W40. These and the Hemi SRT filters are VERY expensive and they are not readily available on store shelves so no deals to be had. This car is a garage queen that may see 2K miles a year at most. I changed it at 6 months and 1.6K to keep the warranty in force. I did not mind getting out any swarf in the new mill. I called the dealer and was basically told that I MUST change it every 6 months even if it only had 1 mile on it since the last change to keep my warranty. I would not mind so much if I was dumping $20 worth of Super Tech and a Fram but I'm looking at $75 a pop with me doing all the work! At 67 years of age and all of my other vehicles it also ain't as much fun as it used to be....END of RANT