Summer of 2009 switched radiators in my 89 Lebaron 2.5. didn't realize that petcock was open(used rad and mud dobber nest) Lost all coolant driving to work(half hour) 5 min from work smelt something warm. Temp gage pegged. Had new oil and qt of Lucas Oil Stabilizer. got so hot dropped seat in head. Redid head and got back on road. Buddy of mine said that I cooked the rings. With the Lucas oil Stabilizer in, it saved the engine. Still drive it to work everyday.