x2 on changing all of the fluids. Don't use any synthetic fluid in the transmission...it won't like it.
I debadged mine by heating the emblems with a hair dryer and lifting them off with some small guage fishing line. Goo Gone for the leftover glue and then a good rub with ScratchX and a microfiber cloth to remove the shadow that was left over. When I heated the front emblem and removed it, it did not break.
I'm sure Riff will be along to answer your tire questions.
Live, Love, Forgive and Never Give Up