Engineering leveling guide
Engineering in WotLK Classic runs from 375 to 450 on Cobalt and Saronite, which makes Mining the natural partner. Learn Grand Master Engineering at character level 65 as soon as you reach Northrend. Counts are approximate: a recipe can turn green a few points earlier or later.
What to gather or buy
| Material | About |
|---|---|
 Cobalt Bar |
340 |
 Saronite Bar |
555 |
 Crystallized Water |
80 |
 Crystallized Earth |
10 |
 Crystallized Fire |
15 |
 Frostweave Cloth |
7 |
 Borean Leather |
14 |
 Eternal Shadow |
7 |
 Skinning Knife,  Mining Pick,  Blacksmith Hammer |
30 |
The route also uses 
Handful of Cobalt Bolts (2 Cobalt Bar each) and 
Volatile Blasting Trigger (3 Cobalt Bar and a Crystallized Water each): make about 50 bolts and 26 triggers along the way. Skinning Knives, Mining Picks and Blacksmith Hammers come from the trade supplies vendors.
Route
| Skill | Craft | Per craft |
|---|---|---|
| 375-385 |  Overcharged Capacitor |
4 Cobalt Bar, Crystallized Earth |
| 385-390 |  Explosive Decoy |
Frostweave Cloth, 3 Volatile Blasting Trigger |
| 390-400 |  Froststeel Tube |
8 Cobalt Bar, Crystallized Water |
| 400-405 |  Diamond-cut Refractor Scope |
Froststeel Tube, 2 Handful of Cobalt Bolts |
| 405-410 |  Box of Bombs |
5 Saronite Bar, Volatile Blasting Trigger |
| 410-415 |  Goblin Beam Welder |
6 Saronite Bar, 3 Crystallized Fire, 3 Crystallized Water |
| 415-425 |  Mana Injector Kit |
12 Saronite Bar, 2 Crystallized Water |
| 425-430 |  Mechanized Snow Goggles |
8 Saronite Bar, 2 Borean Leather, Eternal Shadow |
| 430-435 |  Noise Machine |
2 Froststeel Tube, 2 Overcharged Capacitor, 8 Handful of Cobalt Bolts |
| 435-450 |  Gnomish Army Knife |
10 Saronite Bar, Skinning Knife, Mining Pick, Blacksmith Hammer |
Trainers and tips
- Grand Master Engineering is taught by Timofey Oshenko in Dalaran for both factions, by Tisha Longbridge in Howling Fjord and Sock Brightbolt in Borean Tundra for the Alliance, and by Jamesina Watterly in Howling Fjord and Chief Engineer Leveny in Borean Tundra for the Horde.
- Gnomish Army Knife turns green around 445, so expect to build more than 30.
- Keep the epic goggles and the Wormhole Generator for the last points: they stay orange longer and save materials.