Happy New Year. Well had to use the 02 jeep this morning. It was -32. Nose of jeep was pulled in the garage a little. Went to start and it turned over slow but did start. Was watching oil gauge and it showed O for about 10 seconds. Then a light came on beeping check gauges. Then the gauge started showing pressure and light went out. Never knew this light was even there in 6 years. Jeep has the 4.0. Just serviced about a month ago with valvoline maxlife 5w30 SB and added a little zinc and 1/4 bottle of lubro moly mos2 and motorcraft FL-1A. Does it sound like the adbv did not open quick enough. This is a top thread adbv. Your opinions are appreciated.