Originally Posted by CSIPSD
You will want to poon the tank as well, cut off the expansion part of the tank which will allow you to fill up faster and top off quicker.
There is a piece that extends several inches into the tank from the filler neck. Cut that crap off.
Yeah I did that the other day, have a thread floating around somewhere about it. I was able to put 41,6 gallons in it just after I did it, compared to 38 just before.