Quote Originally Posted by 'Sam DeathWalker',index.php?page=Thread&postID=166320#p ost166320
The quest starts at level 25, why would you expect that I would not get full exp based on "level cap" when I am of the proper level to start the quest?
Quests, like mobs, have a level, and the amount of XP you get from that quest is based on your level in relation to the target quest's level. In the manner that quests work, Quests more than 5 levels lower than the character comopleting them start seeing a penalty on what the quest SHOULD reward, and in the same fashion, completing a quest that is available at a lower level but has an actual quest level +5 levels higher than your current level, you get xp as though you had completed a Level+4 quest.

That's how its supposed to work, anyway. I haven't delved in to calculation for quest xp for a while.

Edit: Ok, upon further research in to what is listed at WoWwiki, there is no over-level cap for quest xp. It does start degrading at -5 levels though, which can be confusing because a quest can still be green at up to -8 or 9 levels, depending on what level you are. This also may not apply to all quests, since some quests are apparently varable level (many class quests).