I bought this 2011 f250 6.7 this summer with 9,900 miles on it. About a month age I got a message on the dash that said to check cooling fluid. I was on the road and stopped at a ford dealer I was passing at the time. They put it on a computer and found everything okay and reset the computer. He stated that it should be reset when doing a oil change. I was wondering do they reset computers at oil changes? And what needs resting? lastly what's the cost. Note that no oil change message has come up on the dash and have put on about 6,000miles. I'm in ct any info would help thanks.