Went to Mobil to fil up my tank for the first time. I had to prepay, so gave the clerk $20 and started filling. At $19.60 the trigger stopped and I said to myself "Hmm...only .60 cents shy of the full amount". Then decided to go for it. Well, when Audi says "Do not top off" they mean it. I ended up spilling a little gas...dammit-some down the side of the car! Well, now I know! With my old Saab, I was able to keep pumping, and pumping, long after the first "trigger stop"! <p>JT 99' 1.8Tqms