One of my fellow racers said that there was new wording added to the automatic transmission locking dipstick tube rule for 2013.
Yes there was additional wording added for 2013. In the 2013 NHRA Rulebook, General Regulations Section 20, 2:14 Transmission, Automatic/NHRA-Accepted, the new added wording states “and dipstick/filler tubes must be securely fastened (i.e., bolted, aircraft clamped). Wire ties, hose clamps, etc. prohibited.”