What car do you have? gc8 2000 wrx
What engine is it? EJ205
What mods that may affect fuel? power fc, vf34, 3"
tbe, un-egual headers, bosch 044, cai, gd sti tmic, silicon intake, running 20psi
Whats the transmission, Auto/Manual? 5MT
How many k's do you get to a full tank? 400-450
What fuel do you use? vortex 98