Hello all, my 2010 Ram 1500, 4.7L started leaking coolant yesterday, but did not overheat, nor did I get any fault code or lights. When I drove to work this morning, about 1.6 miles from home, the temp rose slightly above normal, but didn't get too high. When I arrived at work, I noticed there was no leaking. When I went home for lunch at noon, I topped off with mixture (I work for a heavy duty trucking shop), and as I was driving, temp rose pretty good on the way home, but once I arrived, no leaking. After an hour lunch, drove back to the shop and temp still rose pretty high, but once again, no leaking. Any ideas what my issue might be?