1st bar loss for 5 door hatchback ... - Toyota Yaris Forums

Hershey · 12-18-2009, 12:15 AM

we've noticed there are less miles when losing the 1st bar with the '09 5 door auto than the '08 sedan with automatic . Has anyone else noticed this ? Wonder if the gas tank of the hatchback is positioned different than that of the sedan . The 5 door doesn't seem to glide or have as good rolling resistance as the sedan . Encounter this when coasting to a stop or when gliding done a hill . Feels like something is holding the 5 door back . Reason .

yaris-me · 12-18-2009, 03:27 AM

You should record your gas fill up and mileage to see what kind of mileage you're actually getting. I'm sure the shape of the tank has something to do with what's happening, but your true gas mileage will tell you if something is really different.

Yaris Hilton · 12-18-2009, 05:10 AM

If it doesn't coast as well, check tire pressure and wheel alignment.

Hershey · 12-18-2009, 11:48 AM

Quote:

Originally Posted by yaris-me

You should record your gas fill up and mileage to see what kind of mileage you're actually getting. I'm sure the shape of the tank has something to do with what's happening, but your true gas mileage will tell you if something is really different.

keep mileage for both .

Hershey · 12-18-2009, 11:50 AM

Quote:

Originally Posted by Yaris Hilton

If it doesn't coast as well, check tire pressure and wheel alignment.

check pressure every week or two . Keep tires for both at about 35 p.s.i.. Would hope alignment be good since '09 5 door has less than 9,000 miles .

DevilGirl · 12-18-2009, 12:53 PM

Quote:

Originally Posted by yaris-me

You should record your gas fill up and mileage to see what kind of mileage you're actually getting. I'm sure the shape of the tank has something to do with what's happening, but your true gas mileage will tell you if something is really different.

Quote:

Originally Posted by Hershey

keep mileage for both .

So overall, are they about the same MPG with each fill up?

Or is there a difference too?

Is it the same person driving both vehicles on a consistent basis?

Various factors involved. Driving style being a large one.

Sidicas · 01-05-2010, 02:10 PM

My guess: Having a gas efficient car in the car dealership lot is harder to emphasize when it doesn't always have a full tank. So by making the first bar indicate a larger quantity of fuel than the other bars, it's easier for the dealership to keep the car driving around all day long on test drives while appearing to always have a full tank..

Just my guess.

127.0.0.1 · 01-05-2010, 03:24 PM

Quote:

Originally Posted by Sidicas

My guess: Having a gas efficient car in the car dealership lot is harder to emphasize when it doesn't always have a full tank. So by making the first bar indicate a larger quantity of fuel than the other bars, it's easier for the dealership to keep the car driving around all day long on test drives while appearing to always have a full tank..

Just my guess.

no that is not how it works.

-----

the float is pressed up to the top on a full tank. it is drowned in gas. and more gas needs to be
consumed before the float falls. once the float drops, then the gauge is very accurate. 1/2 tank on gauge = 1/2 tank really left.

the first bar takes a long time to drop because of 'float drowning'

in-tank radar or sonic detectors (used to check fluid levels in all sorts of industrial tanks, a lot
like bumper backup detectors)
would be more extremely accurate but pricey. hence, the old school float is still used today.

in-tank radar is used in some breweries and refineries to detect levels. also used in
fuel delivery systems. I modified a collision detector to tell me how much water I have in the
boiler on my 4-4-0

Goose · 01-05-2010, 09:26 PM

If it helps at all, I've noticed that the auto doesn't coast well either. The alignment and pressures are fine.

Hershey · 01-06-2010, 12:08 AM

we've also noticed that the overdrive for the '09 automatic doesn't come on as quick as the '08 auto sedan after climbing a hill in the 3rd gear . Wonder if the computer for tranny is not calibrated properly in the '09 .

MUSKOKA800 · 01-14-2010, 02:47 PM

It's been said that the sedan is slightly more aerodynamically efficient than the Hatch. But like HILTON said, check for mechanical differences.

supmet · 01-14-2010, 03:02 PM

Quote:

Originally Posted by Hershey

we've also noticed that the overdrive for the '09 automatic doesn't come on as quick as the '08 auto sedan after climbing a hill in the 3rd gear . Wonder if the computer for tranny is not calibrated properly in the '09 .

Its not a calibration issue, its a learning ECU issue. You usually don't gas it hard in 3rd going up hills, so your 08 already knows just to go down to O/D. The 09 still needs some time to learn your driving habits.

jambo101 · 01-14-2010, 04:58 PM

Could be just the time of year as cold weather and winter gas formulations and short runs and winter tires arent the best time to expect your best fuel economy..In my 08 sedan in summer highway driving i can get 130kms before the first bar disappears,in winter in city traffic its usually gone around 90kms..

12-18-2009, 12:15 AM	#1
Hershey Drives: 08 Yaris sedan auto / Fit auto Join Date: Oct 2009 Location: northeast Posts: 2,897	1st bar loss for 5 door hatchback ... we've noticed there are less miles when losing the 1st bar with the '09 5 door auto than the '08 sedan with automatic . Has anyone else noticed this ? Wonder if the gas tank of the hatchback is positioned different than that of the sedan . The 5 door doesn't seem to glide or have as good rolling resistance as the sedan . Encounter this when coasting to a stop or when gliding done a hill . Feels like something is holding the 5 door back . Reason .

01-05-2010, 09:26 PM	#9
Goose Car Geek Drives: Yaris Liftback Join Date: Apr 2006 Location: Ohio cornfields Posts: 213	If it helps at all, I've noticed that the auto doesn't coast well either. The alignment and pressures are fine. __________________ Kevin '07 Blazing Blue 5-speed liftback (sold) '08 Black auto liftback (sold) '09 Carmine Red auto 4-door liftback (sold)

01-14-2010, 02:47 PM	#11
MUSKOKA800 Drives: '08 Yaris Sedan, Aero Package Join Date: Oct 2008 Location: Burlington, Ontario, Canada Posts: 1,720	It's been said that the sedan is slightly more aerodynamically efficient than the Hatch. But like HILTON said, check for mechanical differences. __________________ TRD Upgrades: 18" Wheels wrapped in 215/35/18 PZero's, Sportivo Shocks/Struts, Lowering Springs, Swaybar, Axle-Back Exhaust, Oil Cap, Rad Cap, Signage. Aftermarket Goodies: Piggies SS, K&N Drop-In, Blitz S/C, DC Header, NST Pulley) Toyota Options/Accessories: Sport Pedal Covers, Sport Shift Knob, Ipod Interface, Summer Mats, Winter Mats, Cruise Control, Auto-Dim Mirror, Echo steelies with winter boots.

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12-18-2009, 03:27 AM	#2
yaris-me Learn to Relax Drives: 2007, Meteorite, LB Join Date: Dec 2008 Location: Anaheim, CA Posts: 2,070	You should record your gas fill up and mileage to see what kind of mileage you're actually getting. I'm sure the shape of the tank has something to do with what's happening, but your true gas mileage will tell you if something is really different.

12-18-2009, 05:10 AM	#3
Yaris Hilton Half a Bubble Off Plumb Drives: 2009 Yaris Sedan Join Date: Mar 2009 Location: Bristol, Tennessee, USA Posts: 1,593	If it doesn't coast as well, check tire pressure and wheel alignment.

01-05-2010, 02:10 PM	#7
Sidicas Drives: 2010 Toyota Yaris Hatchback Join Date: Sep 2009 Location: NY Posts: 82	My guess: Having a gas efficient car in the car dealership lot is harder to emphasize when it doesn't always have a full tank. So by making the first bar indicate a larger quantity of fuel than the other bars, it's easier for the dealership to keep the car driving around all day long on test drives while appearing to always have a full tank.. Just my guess.

01-06-2010, 12:08 AM	#10
Hershey Drives: 08 Yaris sedan auto / Fit auto Join Date: Oct 2009 Location: northeast Posts: 2,897	we've also noticed that the overdrive for the '09 automatic doesn't come on as quick as the '08 auto sedan after climbing a hill in the 3rd gear . Wonder if the computer for tranny is not calibrated properly in the '09 .

01-14-2010, 04:58 PM	#13
jambo101 Drives: yaris 08 sedan Join Date: Oct 2008 Location: Montreal Canada Posts: 1,286	Could be just the time of year as cold weather and winter gas formulations and short runs and winter tires arent the best time to expect your best fuel economy..In my 08 sedan in summer highway driving i can get 130kms before the first bar disappears,in winter in city traffic its usually gone around 90kms..