Moderator: volvite
Article you might appreciate in #1 below. I discovered this a couple years ago when running a Scangauge on my Tundra. I have a long boring commute with lots of hills and I discovered some very interesting tidbits using the "fuel flow" function on the scan guage which reports gallons/hour:CPLTECH wrote: A recent 150mi round trip using a few hyper mile tricks (i.e. coast down hill in N) netted me 26.2 @ 50-55MPH with prem.
Ok, so I tried this yesterday on a trip to the grocery store. During acceleration the real time gauge was showing in between 5-7mpg but once I was up to speed (lets say 40-50mph) the gauge was showing 16-20 while lightly on the gas and 30mpg while coasting.AZ_Path wrote:Since you have an '08 you should be able to see the real time fuel economy gauge while you're driving. This helps to give an indication of what your driving style is doing to fuel economy. I believe this is under the Info -> Fuel Economy section of the menu.
My Path is similar to yours minus the 4x4. The on board comp tells me I'm getting 18.2 currently and that is down from the 19+ we were getting before summer started. It sounds like you live near me, high temp & low humidity so our operating conditions are similar as well as our driving mix. (my wife uses it during the week to haul the kids around). I also run regular unleaded and my tires are between 35 - 40 PSI depending on the outside temp. I'm not familiar with the Hankook tires, but unless they are mud bogging tires, something else is causing your low MPG.
I would turn on the real time MPG indicator and pay attention to it. Once you are cruising at 45 - 55, you should be near 20 MPG at the least. And if you are accelerating at less than 2500 RPM as you say, then the indicator should not drop to near zero during acceleration.
I would see what happens with another tank or two. Who knows, maybe the dealer put a fuel additive in for you (i.e. water). 10.8 would not be acceptable to me either.