Arcanine learns Extremespeed at Lv. 49, which is the same level that Growlithe learns Flamethrower. So, if you want Flamethrower and Extremespeed, use the Fire Stone on Growlithe only at level 49.
Lucario learns extreme speed at start. Lucario is an Aura Pokemon, and can also learn close combat, metal claw, aura sphere, and brick break.
my lucario learned extremespeed at level 51 (pokemon platinum version DS)
at level 51 it will learn extremespeed
Growlithe cannot learn extremespeed.
it is very rare that a furret can even learn extremespeed.
Growlithe does not learn Extremespeed, only its evolved form, Arcanine, learns Extremespeed at level 49. Note that this is the same level that Growlithe learns flamethrower, which Arcanine can only learn through a TM, so if you want both Extremespeed and Flamethrower, evolve Growlithe at level 49. Source: serebii.net
Lucario learns Aura Sphere at level 37.
At level 39 it learns extremespeed
by level a lucario can learn: dark pulse, quick attack, foresight, detect, metal claw, counter, force palm, feint, bone rush, metal sound, me first, swords dance, aura sphere, close combat, dragon pulse, and extremespeed well, i hope that answers your question
To teach Linoone ExtremeSpeed, you can level it up to level 49 when it will automatically learn the move. Alternatively, you can use a Heart Scale to teach it at the Move Reminder.
Lucario learns Aura Sphere at level 51.
Lucario learns Dragon Pulse at level 47.
According to Serebii.net, it learns Extremespeed at level 39 if it's in Diamond/Pearl/Platinum or HeartGold/SoulSilver. However in Ruby/Sapphire/Emerald, it learns it at level 49.
47