I can at Level 10, but I'm a paid account so can't say 100% for F2P's. The item you have to use is Medallion of the Legion for 1K reputation to ALL Draenor Factions, including Ashran PvP. Hurry and test it out for yourself though, I have zero doubt that Blizzard will place a Level requirement on those Medallions soon because they love spoiling any fun us "lowbies" like having. Keep in mind it's **** expensive going this route though, those average 5K each and you need MANY even with DMF hats. The further question to ask you though, can F2P access Draenor? Because you will have to make it to someone's Garrison with a Trading Post to purchase them once your rep is high enough.