Have a 2008 Jeep Rubicon with the dreaded 3.8 V6 in it with 233,000 miles on it. When at a stop I feel a shutter or a shake or a hesitation in the car every now and then. Definitely don’t think it’s a misfire. Don’t feel it while driving and have tried to listen to it with the hood open but can’t hear anything. Have tried the fuel cleaners.
