Just took delivery of a brand new 2019 Maverick X3 max RS and the check engine light turn on a went to limp mode on its first mile. I called the dealership and they sent the driver back, who was only 10 mins away to pick up the vehicle. I was told that the newer units were shipped with grease around the spark plugs and that was the cause of the issue. I was guaranteed that this was all that it was. I had it returned quickly in about 5 days. Took it out the next weekend and had the same check engine and limp mode return at 30 miles. I honestly do not trust this unit anymore and want a different vehicle. Any suggestions on how to handle this situation. Thanks..