07 Spec5 fuel mileage

Now have about 5000 miles on the "little one", and the mileage is varying
widly, and I'm wondering why. It goes from the low 20's to the upper 30's
from week to week with anything in the middle of that range. I can tell when
it's going to be good or bad by how many miles it goes before the gage
needle drops off of E on the gage. AT about 50 miles if it drops off E,
lousy mileage. At about 100 to 100+ miles the mileage is great. Thought
maybe might be the pumps at the station but realized that I take the other
car to the same station, use the same pumps and it's mileage it pretty
consistent. What gives? Do they do this before fully broken in? Can't tell
any difference in the way the engines runs thru the different fill-ups. It
will go to the shop as soon as I get a chance, but for now maybe someone has
seen this and can give me an idea as to what's going on with it. Thanks.

--
Paul O.
oplholik DeleteThis @gmail.com

I am assuming you mean 'dropping of of F' not E. If true, it sounds like
you aren't always topping off to the same level when you fill up. Many cars
will let you 'stuff' in an extra gallon after the pump automatically shuts
off. The pumps' shutoff point vary wildly from one to another. You need to
use the same pump at the same station if you want to use the fall off point
from F as a guide. Personally just recording the mileage and fuel usage
should be far more accurate.
As to the varying mileage, does anyone else drive the car? Their driving
habits may be quite different than yours. My 19 year old son destroys! our
mileage, as you can well imagine......

Tom

"Paul O." <oplholik.DeleteThis@gmail.com> wrote in message
news:0%8Zi.19757$lD6.18104@newssvr27.news.prodigy.net...
> Now have about 5000 miles on the "little one", and the mileage is varying
> widly, and I'm wondering why. It goes from the low 20's to the upper 30's
> from week to week with anything in the middle of that range. I can tell
> when it's going to be good or bad by how many miles it goes before the
> gage needle drops off of E on the gage. AT about 50 miles if it drops off
> E, lousy mileage. At about 100 to 100+ miles the mileage is great. Thought
> maybe might be the pumps at the station but realized that I take the other
> car to the same station, use the same pumps and it's mileage it pretty
> consistent. What gives? Do they do this before fully broken in? Can't tell
> any difference in the way the engines runs thru the different fill-ups. It
> will go to the shop as soon as I get a chance, but for now maybe someone
> has seen this and can give me an idea as to what's going on with it.
> Thanks.
>
> --
> Paul O.
> oplholik.DeleteThis@gmail.com
>