Re: Fuel consumption - 2005 Tucson
 

My 2002 Sante Fe was getting 13 mpg City. Turned out to be BP
gasoline! I switched to Marathon or Shell & get 22 City/ 30 Hwy & its
an automatic! SO good gas at 97 octane since high test isn't needed
wins.

I was also told by my tech never to fill up in the rain, and to run it
down to 1/8 of a tank to fill & that gives me correct mileage which 1/4
tank doesn't. So try all of this & let us know.

Re: Fuel consumption - 2005 Tucson
 

<<Does anyone have any thoughts?>>

Try driving on level ground, at a steady speed, where there is no other
traffic around. Take foot off gas, shift to neutral, and observe how
quickly the vehicle slows down. If it slows too quickly, something may
be dragging (i.e. brakes) or out of alignment (i.e. wheels).

John Cowart

Re: Fuel consumption - 2005 Tucson
 

<<Does anyone have any thoughts?>>

Try driving on level ground, at a steady speed, where there is no other
traffic around. Take foot off gas, shift to neutral, and observe how
quickly the vehicle slows down. If it slows too quickly, something may
be dragging (i.e. brakes) or out of alignment (i.e. wheels).

John Cowart

Re: Fuel consumption - 2005 Tucson
 

<<Does anyone have any thoughts?>>

Try driving on level ground, at a steady speed, where there is no other
traffic around. Take foot off gas, shift to neutral, and observe how
quickly the vehicle slows down. If it slows too quickly, something may
be dragging (i.e. brakes) or out of alignment (i.e. wheels).

John Cowart

Re: Fuel consumption - 2005 Tucson
 

<<Does anyone have any thoughts?>>

Are you one of those people who "rides" the brakes? Just wondering...

John Cowart

Re: Fuel consumption - 2005 Tucson
 

<<Does anyone have any thoughts?>>

Are you one of those people who "rides" the brakes? Just wondering...

John Cowart

Re: Fuel consumption - 2005 Tucson
 

<<Does anyone have any thoughts?>>

Are you one of those people who "rides" the brakes? Just wondering...

John Cowart

Re: Fuel consumption - 2005 Tucson
 

The Awesome 1 wrote:

> My 2002 Sante Fe was getting 13 mpg City. Turned out to be BP
> gasoline! I switched to Marathon or Shell & get 22 City/ 30 Hwy & its
> an automatic! SO good gas at 97 octane since high test isn't needed
> wins.

Well, 97 octane is pretty high test if you ask me. Where I live 87 is
typical and 94 is about as high as you can find short of aviation or
racing fuel.


> I was also told by my tech never to fill up in the rain, and to run it
> down to 1/8 of a tank to fill & that gives me correct mileage which 1/4
> tank doesn't. So try all of this & let us know.

What is your tech smoking? Filling up in the rain? Not getting correct
mileage at 1/8 tank vs. 1/4? What a bunch of hogwash. You won't get
correct mileage just checking one tank in any event. You need to check
at least five in a row to have any assurance of a reasonable average.
And if you check several in sequence, it doesn't matter if you fill up
at 1/8, 1/4 or 1/2 level. Any little over or underage on one tank will
be factored out by the next tank.


Matt

Re: Fuel consumption - 2005 Tucson
 

The Awesome 1 wrote:

> My 2002 Sante Fe was getting 13 mpg City. Turned out to be BP
> gasoline! I switched to Marathon or Shell & get 22 City/ 30 Hwy & its
> an automatic! SO good gas at 97 octane since high test isn't needed
> wins.

Well, 97 octane is pretty high test if you ask me. Where I live 87 is
typical and 94 is about as high as you can find short of aviation or
racing fuel.


> I was also told by my tech never to fill up in the rain, and to run it
> down to 1/8 of a tank to fill & that gives me correct mileage which 1/4
> tank doesn't. So try all of this & let us know.

What is your tech smoking? Filling up in the rain? Not getting correct
mileage at 1/8 tank vs. 1/4? What a bunch of hogwash. You won't get
correct mileage just checking one tank in any event. You need to check
at least five in a row to have any assurance of a reasonable average.
And if you check several in sequence, it doesn't matter if you fill up
at 1/8, 1/4 or 1/2 level. Any little over or underage on one tank will
be factored out by the next tank.


Matt

Re: Fuel consumption - 2005 Tucson
 

The Awesome 1 wrote:

> My 2002 Sante Fe was getting 13 mpg City. Turned out to be BP
> gasoline! I switched to Marathon or Shell & get 22 City/ 30 Hwy & its
> an automatic! SO good gas at 97 octane since high test isn't needed
> wins.

Well, 97 octane is pretty high test if you ask me. Where I live 87 is
typical and 94 is about as high as you can find short of aviation or
racing fuel.


> I was also told by my tech never to fill up in the rain, and to run it
> down to 1/8 of a tank to fill & that gives me correct mileage which 1/4
> tank doesn't. So try all of this & let us know.

What is your tech smoking? Filling up in the rain? Not getting correct
mileage at 1/8 tank vs. 1/4? What a bunch of hogwash. You won't get
correct mileage just checking one tank in any event. You need to check
at least five in a row to have any assurance of a reasonable average.
And if you check several in sequence, it doesn't matter if you fill up
at 1/8, 1/4 or 1/2 level. Any little over or underage on one tank will
be factored out by the next tank.


Matt

Re: Fuel consumption - 2005 Tucson
 

Scientifically speaking, the more fuel used, the less error will be
introduced by filling variances. I.e.-- there's a significantly larger
amount of fuel used than the difference in how full the tank is based on
differences in auto shutoff, vehicle slope, and other factors.

But you're correct on taking several samples, regardless of amount of fuel
at fill-up. This will minimize error as well as make aberrant values stand
out.

Re: Fuel consumption - 2005 Tucson
 

Scientifically speaking, the more fuel used, the less error will be
introduced by filling variances. I.e.-- there's a significantly larger
amount of fuel used than the difference in how full the tank is based on
differences in auto shutoff, vehicle slope, and other factors.

But you're correct on taking several samples, regardless of amount of fuel
at fill-up. This will minimize error as well as make aberrant values stand
out.

Re: Fuel consumption - 2005 Tucson
 

Scientifically speaking, the more fuel used, the less error will be
introduced by filling variances. I.e.-- there's a significantly larger
amount of fuel used than the difference in how full the tank is based on
differences in auto shutoff, vehicle slope, and other factors.

But you're correct on taking several samples, regardless of amount of fuel
at fill-up. This will minimize error as well as make aberrant values stand
out.

Re: Fuel consumption - 2005 Tucson
 

Nice points, John. I usually check for brakes dragging by coasting to a
stop in neutral on a slight upward incline. The vehicle should smoothly
reach a stop and begin rolling backward-- it should not jerk when the stop
is reached.

The chances of getting a shop to put the vehicle on the front end rack to
check alignment (without ponying up at least an authorization for the
typical alignment charges) are small. Hyundai won't pay for the alignment
if the values are within spec, so the dealer will be looking to charge the
customer for their effort if there's no problem. Look for front or rear
tires wearing on either the inside edges or outside edges and make sure
the steering wheel is centered. Either the wear or the steering wheel
issue indicate a likely alignment problem, but absence of these issues
(especially on a new vehicle where tire age is minimal) doesn't mean there
isn't a problem with the alignment.

Re: Fuel consumption - 2005 Tucson
 

Nice points, John. I usually check for brakes dragging by coasting to a
stop in neutral on a slight upward incline. The vehicle should smoothly
reach a stop and begin rolling backward-- it should not jerk when the stop
is reached.

The chances of getting a shop to put the vehicle on the front end rack to
check alignment (without ponying up at least an authorization for the
typical alignment charges) are small. Hyundai won't pay for the alignment
if the values are within spec, so the dealer will be looking to charge the
customer for their effort if there's no problem. Look for front or rear
tires wearing on either the inside edges or outside edges and make sure
the steering wheel is centered. Either the wear or the steering wheel
issue indicate a likely alignment problem, but absence of these issues
(especially on a new vehicle where tire age is minimal) doesn't mean there
isn't a problem with the alignment.