Originally Posted by
sandm
I hope all the mileage claims on here are not using onboard data but rather the tried and true miles driven off the odo and gallons replaced from a full tank to a full tank. there's enough articles out there from the automotive press world showing those onboard computers are a good guide but not real accurate. mike is thinking real world in his expectations based on what I have read on the eco that ford's claims are not real world but then NO sticker on any vehicle out there are reporting factual data.
I check mine with every fillup in both trucks. my 2k f150 heavyhalf has been turning 12.5-12.8 pretty consistently since I bought it in '07. the '98 ranger 4.0 4x4 I picked up here in wisconsin is turning 16.5 tank to tank. I see people with that engine stating 20. all I have to say is prove it.