My truck has been overheating for about two weeks now. I did the whole radiator flush liquid and I have replaced my thermostat, but nothing helps. I can run at night, with the hetaer on, at like 55 mph and it is still running damn hot. I think this is also thinning out my oil so I have really low oil pressure. It's like 28. All I can figure is to get my radiator rodded, but I am leaving for service in a month and I have been advised to sell this truck instead of rebuild it. What do ya'll think.