My needle gets kicked into overdrive after it passes the half way mark also, doesn't bother me much I fill whenever I need to anyway. I average about 23 MPG
Alex
00 T-Red/Tan SVTC
#1964/2150
167 HP @6800
153 TQ @3000
Sold-
98 'Tour SE 24V 5-spd
149 HP @5900
148 LB FT @4300