The emblem is for the older 5 gallon tanks. Since 2008 the 6 gallon tanks are larger so there is a small gap between the tank and the mounting plate that sticky tapes to the tank. The emblem is cast so it can't be bent to fit.
That sucks I have a set of those emblems I wanted to put on my 14
Run it low on gas + park it in the sun (unless you live in Cleveland where sun is as scarce as Superbowl rings). Then saw it off with fishing line or waxed dental floss.
I find that PB Blaster disolves the 3M adhesive better than anything without hurting the paint. Just pulled it away without touching the paint. Give it a little time to work, repeat, clean everything up with soap & water. Good luck!
I would never use WD-40 on a nice paint job! Floss or fishing string & a little heat. I clean up as much as i can by hand then use turtle wax to Remove Sticker Residue & polish out.