Re: Diesel Leaking....
After I first filled up my new 2014 GC I noticed a diesel leak...just a few drops per hour., but enough to concern me. The leak was at the base of the tank where the filler pipe joined the tank via a rubber hose. It looked like the leak was coming from further up the tube. The dealer asked me to drive for a couple of hundred miles to half empty the tank. I did, and as the tank level dropped the leaking slowed down. The dealer dropped the tank and couldn't fine any leaks from know places (sender unit??). The only explanation was that on my first fill, some diesel spilled down the drainage hole below the filler and worked its way down the filler pipe. I am always very careful to avoid any spillages, but since then the 'leak' has never happened again...but I am now ultra careful (paranoid) filling up. Having said that, the dealer had experienced cases of leakage from 2011/12 diesel tanks but I'm not sure the exact location.
Good luck....curious to see what the dealer finds