I've got a leaky transmission too. Just over 3,000 miles. We dropped our SE off at the dealer last week. Since we're in Germany, it might take up to 3 weeks to fix!
Mine likes to kick off too after about 12 gallons. Gotta pull the nozzle out, re-insert, and then continue... a couple times. I didn't know I was having any problems until I noticed I was only getting 200 miles per tank!