Just got car drove it 300miles LA to Sac at night,then on a 95 degree day car was ideling for about 15min toping of transaxel fluid,and the temperture gauge went to the middle then a lil bit over the middle than kicked back to the middle when the fans came on is this normal for the Cadillac Northstar engines to do this.
Hot Day Temperture Gauge atmiddle then goes a lil bit over the middle on 2002 Cadillac DeVille DTS
Have your engine checked out. North Stars tend to be sensitive to cooling issues. If there is a problem brewing, have a good shop check your entire cooling system. it could be a sticking thermostat, old and broken down coolant, worn radiator etc, etc.