Originally Posted by GeorgeKW

​​​​​Welp, for anyone that was following, it ended up being bad gas. Thankfully the catalytic converters were in good shape. Service manager was savvy enough to save a sample of the bad fuel and thoroughly document the entire repair. Imagine my delight when I discover my comprehensive insurance will cover the repair! Agent is friend out of town for the holidays and will make claim when he returns. Also discovered several other vehicles in town also have been brought to local dealers for similar repairs.