Since when does an AT-AT have unlimited fuel?
Since the tech level of SW made 'fuel' and 'fueling' obsolete.
Since when are they also immune to nukes?
Since nukes haven't got even a fraction (or, rather, have got only a small fraction) of the destructive and concussive power of turbolasers that had no effect on the AT-ATs.
And since when are you incapable of understanding that miles =/= kilometers?
Since I didn't have the quote available and was going off of memory? Since when have you been unable to identify a question?
wuznot it sixty mph?
*consults source material*
What do ya know? AT-TEs have enough fuel for '500 km (310 miles) walking' (ICS: AotC) while AT-ATs have no such limitation noted. In fact, except for a suggestion that AT ATs use hypermatter fuel slugs (which would suggest that AT ATs' power capacity is far higher than previously asserted) I can find nothing. I'd let this drop if I were you b/c if they do use hypermatter then I win. lotz.