Average 32+/tank.
90% road at 65-75 mph.
Last tank 458 mi/14.15 gal.
I've put as much as 14.8 into the tank. Tank capacity doesn't include filler neck which should hold almost another gallon. Reserve should be at least one gallon when light goes on. BTW, when the low fuel light comes on, I can usually run another 35-40 miles; I run below empty quite a bit, but there are gas stations nearby.