as the documentation is proof - i get ~10/11 mpg and so my light comes on and i drive it for another day (in town) and at the pump, the pump kicks off around 22/23 gallons put in...usually pump in up to 28/29..
so that being said - i too get the gauge at ~60-80 to go...
occasionally pump will stop around 25 gallons..
where'd you come up w/ that....more service tips from your cuz ??? sorry
i couldnt resist !
youll want to familarize yourself w/ the TWO fuel filters along w/
the HFCM and the filter construction (water barrier) material.
paid vacation?