how much are you putting in the tank when you fill it? I wonder if the pump is shutting off at less than full. you should try another station to see if that is the case. ethanol mixes will produce lower MPG but not by that much. still unclear on if highway or city driving situation.
We don't always fill at costco. There's also a Sheetz - Using 87 unleaded. Also used BP here and there.
We live in a residential area with highway access about 1 mile from the house. Typical drive is 1 mile at 30mph with 1 light between house and highway for about 14 miles direct to work. Some light residential driving maybe 12 miles total for the week.
Filled at mileage 1184. Drove until mileage 1449 - 265 miles. Took 11.148 gallons to fill = 23.77mpg
Filled at mileage 1449. Drove until mileage 1712 263 miles. Took 11.255 to fill = 23.38mpg
I hear you regarding idea of pump shutting off at less than full. An idea to consider, but it seems like it fills fully. When it's been close to E, it's taken over 13gallons, so I suspect it's topping off at full just fine.
I completely understand that city and stop/go driving will have lower mileage than highway, but we drive this Taos in a very gentle way. I also understand variances with ethanol additives.
I'm not looking for suggestions to modify driving behavior. I'm sorry if that was unclear. Since purchase, we have been getting 24mpg - There is a problem with the FWD SE Taos we purchased and I am trying to find out if anyone has similar issues and, if so, was it a hardware issue or a software issue?
Low fuel efficiency can be hard to sort out and the dealership is useless most of the time. Counting on fellow Taosers for the answer.