Hey guys. Yesterday while driving on the highway my Lacs temperature got into the red ,the ac fan shut off, n I drove it for about another 10 min off the highway before I could stop. I parked it and it sat for about 3hrs. After, I drove again about a 10 mins drive w no problems(temp gauge stayed dead center) except, the "change engine oil" indicator came up on the dash. When I got to my destination I checked the fluids--engine oil good. Low on coolant. Drove again - home - about a 20 min drive (temp dead center) n topped off my coolant. Question is, did I burn the viscosity of the engine oil ? Should I change it before driving ? Car didn't smoke or wires short or nothing like that??