The MT tires on the Rubicon are not good for packed snow and ice. Yes, you can use them and they aren't outright dangerous but they are far from optimal. If you take it easy and slow you should be ok. If you drive like an idiot you will end on a ditch and/or rear end someone.
The stock Rubi BFG MTs suck in all but deep snow- terrible on ice and packed snow. I switched them out for the Goodyear Silent Armor ATs which I am using all year around. Great tires- quiet, good in rain and great in winter (lots of siping).
By the way, "but what does moab mean" Surely you jest. Aside from being a Jeep Wrangler special edition model, Moab (as in Utah) is where the wheeling angels go- Off road heaven.
2013 Gecko JK Rubicon, LoD bumper, Warn VR8000-S, Ace Rock Sliders, Goodyear SilentArmors, Drake grill inserts, Prolink, Smart Doors, AntennaX, Welcome grabs, Mopar Slush mats front, QT mats rear and cargo, Midland CB, Mopar locking gas cap, RR fuel door, wallet on life support.
If you don't know where you're going, you'll get there.
If you want the last tire you''ll ever buy, get Nokian's. Ever since I bought them about 6 years ago. I'll never use another tire. You really can't debate a Finnish company that holds pretty much every significant patent on tires when it comes to snow and inclement weather performance. Link: http://www.nokiantires.com/
Watch the videos too.
2013 Sport in Commando Green
3.73 Gears, A/C, 6-Speed
I bought Goodyear Duratracs for my first winter in Utah this year. I thought my Nitto Terra Grapplers would be good because they're siped like crazy, But they actually scared me on packed snow when I was up north visiting family last winter. So Nitto's go bye bye.
I don't have room in the garage for an extra set of winter tires. Duratracs are severe weather rated and pre drilled for studs.
i drove my (new last Nov) 13 rubi from Nov thru May here in the Canadian prairie and like others have said the bfg mt km's are not ideal without siping but they'll pass if you drive carefully. Now that i have 8000 miles on them they're looking a little less ideal as the edges have started to wear so i don't think i'll go another winter with them. Likely going to pick up the Duratracs or maybe BFG ATs since Costco has them at a reasonable price.