I have a 2001 XJ I6 4x4. Stock. I have been having an issue with the antifreeze level. It is slowly disappearing. I have no noticeable leaks when at operating temp. I recently changed the oil and it was as clear as can be. I do have an antifreeze smell OUTSIDE when I park. No smell inside. It seems to take a little longer to warm up, but then again it has been extremely cold here. The temp gauge never goes above 190. When I bought the jeep I flushed the radiator and replaced the thermostat. Other than this, it has been a good jeep. Please help, I'm at a loss. Thanks!