Fuel Economy - Page 47 - Toyota Yaris Forums

eTiMaGo · 12-06-2006, 11:32 AM

I agree about the low fuel thing, kinda experienced it myself (i think)

When I had upgrades done to the car, the guys at the workshop left the engine running most of the time, and it actually ran completely dry.

Once it was refueled, and the car back on the road, I found I had crappy mileage too, half a tank only lasted about 150km.

Then, a couple of days later, I was on the highway, pedal to the metal in 5th, when the air/fuel sensor meter I installed pegged the needle on very rich, and the warning buzzer went crazy for a little while. Then, the meter went back to normal, and so far, normal mileage seems to have returned.

I'll be sure to refuel before the gauge shows two bars from now on

Nutzoids · 12-06-2006, 12:43 PM

Alright I have a US Yaris HB... I have 2 bars left and I want to find out what my MPG was... What equation should I use? How many Gallons of gas fit in that tank? Do I just refill the tank and minus that number from the size of the tank then divide that by the amount of miles I have done? There are too many numbers here with the Metric/IMP/ US conversions…I’m slow and need to be explained things slowly!

hystria · 12-06-2006, 12:53 PM

100% highway at 3000rpm (70mi/h)
39mpg

100% stop&go city, moderate driving, cold weather+snow
26mpg (35 miles on a bar)

that's for a 4000km on clock, 5 speed Hb with original oil/filter

Just changed oil to synthetic & waiting to see if ther's any change in mpg

BMGYaris · 12-06-2006, 01:35 PM

Quote:

Originally Posted by hystria

100% stop&go city, moderate driving, cold weather+snow
32mpg (35 miles on a bar)

What do you mean by on a bar?

hystria · 12-06-2006, 03:36 PM

Quote:

Originally Posted by BMGYaris

What do you mean by on a bar?

fuel level bar. of course, this is just a first approximation of my city mileage as I just moved into the city. i'll be back few tanks later for a more precise mileage

boris13 · 12-06-2006, 04:16 PM

Quote:

Originally Posted by hystria

fuel level bar. of course, this is just a first approximation of my city mileage as I just moved into the city. i'll be back few tanks later for a more precise mileage

And are you using Imperial gallons or US gallons?

stuffy · 12-06-2006, 05:21 PM

nutzoids: just fill the tank, note how much fuel was put into the tank and how much distance was travelled by noting on the odomoter,
i have a little pad i keep in the car and once the car is filled, i write down both numbers and do the math at home.

divide the distance travelled by the amount of fuel used.

it's good to average this over a number of tank fills to get a better idea of fuel economy.

hystria · 12-06-2006, 07:01 PM

Quote:

Originally Posted by boris13

And are you using Imperial gallons or US gallons?

your right! topic edited

Typer73 · 12-07-2006, 08:10 PM

Nutzoids-- I also have a US LB (averages 33 mpg). I always zero out my Trip A gauge when I fill up, saves me from having to do too much math.

I get a receipt that shows gallons used and write down the mileage from Trip A on it with the pen kept in the "handy-dandy driver's side glove box", then zero it out for the next fill-up. Do the dividing math at home with a calculator!

Racer X-8 · 12-07-2006, 10:16 PM

Q. What do I do when I just want to do a partial fill, like, say, throwing $5 worth into it?

A. DO NOT zero your trip odometer. Save your reciept(s) and when you finally DO fill it up, record your total miles from the trip odo and zero it. Add-up your total gallons from your reciepts. Divide the total miles by the total gallons. There you go, as accurate as anything, no estimating.

btw, I'm still getting 36 mpg avg., and it's pretty consistant, like my graph posted on 10-2 shows.

swng · 12-09-2006, 02:24 AM

My latest tank:

Fuel Cost
$38.28

Distance travelled
516.2 km
320.77 miles

Fuel Amount
39.71 litres
10.49 US gallons
8.73 Imperial gallons

Cost of Fuel
$0.96 per litre
$3.65 per US gallon
$4.38 per Imperial gallon

Fuel Economy
7.69 litres per 100 km
30.58 miles per US gallon
36.73 miles per Imperial gallon

Mileage Costs
7.4157 ¢ents per km
11.93 ¢ents per mile

NB: Canadian currency used.

Winter and traffic jams have hurt my fuel economy.

For calculation method(s), I use the methods described here:

https://www.fueleconomy.gov/mpg/MPG.do?action=calcMPG

For the actual calculations, I use the free calculator here:

http://oee.nrcan.gc.ca/transportatio...ut.cfm?attr=16

wibrian · 12-09-2006, 06:41 AM

1st tank 32.6 mpg, 2nd 35.4 Hope it keeps going up

why? · 12-09-2006, 06:43 PM

I can't emphasize how much slowing down can help your gas mileage. For gas mileage purposes, there is no reason to go over the speed limit. Add that to accelerating slowly, and doing everything possible not to use the breaks, and being really patient all the time. Even going 80 mph for a few miles can drop the gas mileage significantly on a tank of gas that was otherwise averaging 55 mph. It all comes down to how much gas you want to save against how slow you feel comfortable driving. The Pulse and glide method works as well, but you usually don't want to go to much lower than the speed limit, so its use is limited on public roads.

Everything matters when it comes to gas mileage. Weather, Tire air pressure, weight in the car, if you let the car warm up, how much you let the car rev before shifting, any accessories you use in the car, how hilly or flat your usual driving spots are, stopping in traffic, braking a lot, etc.

BTW, I ran my tank completely dry once by mistake, and it did not seem to hurt my fuel economy at all.

Having a tach really helps with gas mileage. Knowing when you shift and how much you are really accelerating can help you go slower and save gas.

mutatio · 12-09-2006, 10:39 PM

I thought you folks might enjoy the opportunity to bolster the numbers for the yaris.

http://www.fueleconomy.gov/mpg/MPG.d...ta&model=Yaris

Register, and you can add yours to the mix. :)

eTiMaGo · 12-14-2006, 11:43 PM

Whoohoo 19.1MPG - 12L/100km

Warming up the engine properly, short trips and being stuck 2 and a half hours in a traffic jam certainly don't help... Gotta love this city

Can't wait for my road trip for the holidays... that should give us better numbers!

swng · 12-15-2006, 01:10 AM

I know how you feel. I encountered a serious traffic jam this afternoon. It is going to hurt the result of this tank.
Can't wait to know about how your car performs in your road trip. Bon voyage!

eTiMaGo · 12-15-2006, 01:38 AM

Quote:

Originally Posted by swng

I know how you feel. I encountered a serious traffic jam this afternoon. It is going to hurt the result of this tank.
Can't wait to know about how your car performs in your road trip. Bon voyage!

2 and half hours in a traffic jam not only hurts your mileage, but with race seats, it hurts your butt BAD! Once I got home I didn't want to sit down for an hour or so

DorytheYaris · 12-15-2006, 10:01 AM

Quote:

Originally Posted by hhcchen

i hope that's the unbroken in mpg...
anyone broken in there yaris yet...???
anyone with 1000+ mile/1600+ km yaris yet...???

2,200 miles here. I bought it on November 6 with 8 miles on it.

My boyfriend and I drive my Yaris all the time rather than his 2006 Honda Civic coupe!

12-06-2006, 11:32 AM	#829
eTiMaGo vroom vroom View User's Garage Drives: lil red 5-door Join Date: Sep 2006 Location: Bangkok, Thailand Posts: 7,744	I agree about the low fuel thing, kinda experienced it myself (i think) When I had upgrades done to the car, the guys at the workshop left the engine running most of the time, and it actually ran completely dry. Once it was refueled, and the car back on the road, I found I had crappy mileage too, half a tank only lasted about 150km. Then, a couple of days later, I was on the highway, pedal to the metal in 5th, when the air/fuel sensor meter I installed pegged the needle on very rich, and the warning buzzer went crazy for a little while. Then, the meter went back to normal, and so far, normal mileage seems to have returned. I'll be sure to refuel before the gauge shows two bars from now on __________________ The price of freedom of religion, or of speech, or of the press, is that we must put up with a good deal of rubbish. - Robert Jackson Bye bye 1NZ...

12-06-2006, 12:53 PM	#831
hystria Drives: 2007 Orange Yaris Hb 3Drs Join Date: Dec 2006 Location: Montreal-Canada Posts: 262	100% highway at 3000rpm (70mi/h) 39mpg 100% stop&go city, moderate driving, cold weather+snow 26mpg (35 miles on a bar) that's for a 4000km on clock, 5 speed Hb with original oil/filter Just changed oil to synthetic & waiting to see if ther's any change in mpg Last edited by hystria; 12-06-2006 at 07:00 PM.

12-07-2006, 10:16 PM	#838
Racer X-8 Races Little Red Wagons Drives: red '07 Yaris liftback auto. Join Date: Sep 2006 Location: warmed-up, SC Posts: 92	Q. What do I do when I just want to do a partial fill, like, say, throwing $5 worth into it? A. DO NOT zero your trip odometer. Save your reciept(s) and when you finally DO fill it up, record your total miles from the trip odo and zero it. Add-up your total gallons from your reciepts. Divide the total miles by the total gallons. There you go, as accurate as anything, no estimating. btw, I'm still getting 36 mpg avg., and it's pretty consistant, like my graph posted on 10-2 shows. Last edited by Racer X-8; 12-07-2006 at 10:27 PM.

12-09-2006, 06:41 AM	#840
wibrian Drives: Red LB Join Date: Sep 2006 Location: WI Posts: 15	1st tank 32.6 mpg, 2nd 35.4 Hope it keeps going up __________________ May your heart be true when darkness falls.

12-09-2006, 06:43 PM	#841
why? Only Happy When it Rains View User's Garage Drives: Yaris LB Join Date: Jan 2006 Location: harnett county NC Posts: 4,097	I can't emphasize how much slowing down can help your gas mileage. For gas mileage purposes, there is no reason to go over the speed limit. Add that to accelerating slowly, and doing everything possible not to use the breaks, and being really patient all the time. Even going 80 mph for a few miles can drop the gas mileage significantly on a tank of gas that was otherwise averaging 55 mph. It all comes down to how much gas you want to save against how slow you feel comfortable driving. The Pulse and glide method works as well, but you usually don't want to go to much lower than the speed limit, so its use is limited on public roads. Everything matters when it comes to gas mileage. Weather, Tire air pressure, weight in the car, if you let the car warm up, how much you let the car rev before shifting, any accessories you use in the car, how hilly or flat your usual driving spots are, stopping in traffic, braking a lot, etc. BTW, I ran my tank completely dry once by mistake, and it did not seem to hurt my fuel economy at all. Having a tach really helps with gas mileage. Knowing when you shift and how much you are really accelerating can help you go slower and save gas. __________________ Colin Chapman disciple

12-06-2006, 12:43 PM	#830
Nutzoids View User's Garage Drives: 07 Yaris Liftback Join Date: Nov 2006 Location: Philadelphia Posts: 938	Alright I have a US Yaris HB... I have 2 bars left and I want to find out what my MPG was... What equation should I use? How many Gallons of gas fit in that tank? Do I just refill the tank and minus that number from the size of the tank then divide that by the amount of miles I have done? There are too many numbers here with the Metric/IMP/ US conversions…I’m slow and need to be explained things slowly!

12-06-2006, 05:21 PM	#835
stuffy Drives: 06 yaris 5-dr le man Join Date: Mar 2006 Location: ontario, canada Posts: 699	nutzoids: just fill the tank, note how much fuel was put into the tank and how much distance was travelled by noting on the odomoter, i have a little pad i keep in the car and once the car is filled, i write down both numbers and do the math at home. divide the distance travelled by the amount of fuel used. it's good to average this over a number of tank fills to get a better idea of fuel economy.

12-07-2006, 08:10 PM	#837
Typer73 Tired of the Stars! View User's Garage Drives: '07 Meteorite LB Join Date: Dec 2006 Location: NE GA Posts: 281	Nutzoids-- I also have a US LB (averages 33 mpg). I always zero out my Trip A gauge when I fill up, saves me from having to do too much math. I get a receipt that shows gallons used and write down the mileage from Trip A on it with the pen kept in the "handy-dandy driver's side glove box", then zero it out for the next fill-up. Do the dividing math at home with a calculator!

12-09-2006, 02:24 AM	#839
swng Drives: 06 3-dr auto RS Join Date: Jan 2006 Location: BC Posts: 1,051	My latest tank: Fuel Cost $38.28 Distance travelled 516.2 km 320.77 miles Fuel Amount 39.71 litres 10.49 US gallons 8.73 Imperial gallons Cost of Fuel $0.96 per litre $3.65 per US gallon $4.38 per Imperial gallon Fuel Economy 7.69 litres per 100 km 30.58 miles per US gallon 36.73 miles per Imperial gallon Mileage Costs 7.4157 ¢ents per km 11.93 ¢ents per mile NB: Canadian currency used. Winter and traffic jams have hurt my fuel economy. For calculation method(s), I use the methods described here: https://www.fueleconomy.gov/mpg/MPG.do?action=calcMPG For the actual calculations, I use the free calculator here: http://oee.nrcan.gc.ca/transportatio...ut.cfm?attr=16

12-09-2006, 10:39 PM	#842
mutatio Drives: Flint Mica AT Sedan Join Date: Nov 2006 Location: Hollywood, FL Posts: 77	I thought you folks might enjoy the opportunity to bolster the numbers for the yaris. http://www.fueleconomy.gov/mpg/MPG.d...ta&model=Yaris Register, and you can add yours to the mix. :)

12-14-2006, 11:43 PM	#843
eTiMaGo vroom vroom View User's Garage Drives: lil red 5-door Join Date: Sep 2006 Location: Bangkok, Thailand Posts: 7,744	Whoohoo 19.1MPG - 12L/100km Warming up the engine properly, short trips and being stuck 2 and a half hours in a traffic jam certainly don't help... Gotta love this city Can't wait for my road trip for the holidays... that should give us better numbers! __________________ The price of freedom of religion, or of speech, or of the press, is that we must put up with a good deal of rubbish. - Robert Jackson Bye bye 1NZ...

12-15-2006, 01:10 AM	#844
swng Drives: 06 3-dr auto RS Join Date: Jan 2006 Location: BC Posts: 1,051	I know how you feel. I encountered a serious traffic jam this afternoon. It is going to hurt the result of this tank. Can't wait to know about how your car performs in your road trip. Bon voyage!