The best place to farm Petrolspill Leggings is Gnomeregan, where Irradiated Horror (level 28-29) drops it at 0.1%. That is the vanilla 1.12 chance, not yet confirmed in Forever. 13 sources are ranked below by drop chance.
Gold per kill: Irradiated Horror is worth about 5s 53c a kill in item drops (at Auction House prices). Gold farming spots, level 20-30
Best zones:
All sources, by drop chance:
| Source | Level | Zone | Spawns | Side | How | Drop% | Map |
|---|---|---|---|---|---|---|---|
| Irradiated Horror(elite) | 28-29+ | Gnomeregan | 6 | Drop | 0.1% | map | |
| Arcane Nullifier X-21(elite) | 32-33+ | Gnomeregan | 8 | Drop | 0.1% | map | |
| Mechanized Guardian(elite) | 31-32+ | Gnomeregan | 16 | Drop | 0.0% | map | |
| Caverndeep Reaver(elite) | 27-28+ | Gnomeregan | 16 | Drop | 0.0% | map | |
| Mechano-Tank(elite) | 29-30+ | Gnomeregan | 7 | Drop | 0.0% | map | |
| Mechano-Flamewalker(elite) | 30-31+ | Gnomeregan | 8 | Drop | 0.0% | map | |
| Peacekeeper Security Suit(elite) | 30-31+ | Gnomeregan | 4 | Drop | 0.0% | map | |
| Caverndeep Burrower(elite) | 25-27+ | Gnomeregan | 22 | Drop | 0.0% | map | |
| Caverndeep Ambusher | 25-27 | Gnomeregan | 5 | Drop | 0.0% | map | |
| Leprous Defender(elite) | 28-29+ | Gnomeregan | 9 | Drop | 0.0% | map | |
| Mechanized Sentry(elite) | 28-29+ | Gnomeregan | 29 | Drop | 0.0% | map | |
| Mechano-Frostwalker(elite) | 31-32+ | Gnomeregan | 8 | Drop | 0.0% | map | |
| Dark Iron Agent(elite) | 32-33+ | Gnomeregan | 34 | Drop | 0.0% | map |
Drop% is the rate recorded in Forever once a source has been looted ten times; a greyed figure is the vanilla 1.12 chance from the world data (classic data: from the patch 1.12 world data, not yet confirmed in forever). Spawns counts the source's spawn points in the world data. "Side" names which side can kill the NPC when the other finds it friendly. The lead picks the best chance among sources that are not a rare spawn and have at least three spawn points.