Fuel Economy

[naossoan]

ok I did a calculation last night when I got home.

I drove 565 Km on 34.something litres of gas. 87 octane
came out to 6.11 L / 100km or 39.something MPG.

Not bad!

Also, how many litres is the gas tank? 40? Seems right because the last time I filled up, the last fuel bar just started flashing and I put 36.5 litres in so 40 seems about right. I'm at work and don't have the user manual with me to check. can anyone confirm this?

[palsan]

Originally Posted by naossoan

Also, how many litres is the gas tank?

42L, 11.1gal (US), 9.2gal (imp.)

[swng]

Originally Posted by swng

Filled up on 2 Jun 07 and the result was:

About 563 km traveled. Consumed 38.096 liters of fuel and used C$42.82 to fill back up.
Approximately 41.76 mpg (Imperial), or about 34.76 mpg (US), or 14.78 km per liter, or 6.77 liters per 100 km. I occasionally carried three passengers with their belongings, and the A/C was used about half of the time. Weather was good but warm. Driving style was - keep pace with traffic and be fuel economy conscious. No exotic measure used to save extra fuel. Other conditions similar to last report quoted i.e. Post #1201 at P.81.

This time, I used this free calculator (except for mpg (US)) which also contains a pageful of usual fuel saving tips:

http://www.vehicleservice.co.za/calc/fuel.html

For the mpg number in US gallon terms, I used the calculator provided free here:

http://www.gassavers.org/garage/viewgaslog/264

Latest tank's result:
About 38 mpg (Imp), or 31.69 mpg (US) or 13.47 km per liter.
The car was driven by my brother most of the time. I am not surprised by the drop in mpg considering the people and golf clubs he carries.
I am glad that the result is still above the EPA average.
Last report at Post #1246.

[keesue]

I'm now getting 40 mpg consistently at 70 mph max speed - up from 36.5. I have 9,100 miles on the car and its an Automatic. It is used predominately as a commute vehicle with 65 mph average speeds on the freeway - some hills with a bit of city on both ends. The car is all stock - no changes. I'm considering running Royal Purple 5w-20w. Also considering a CAI to open up the throat. In every car I have owned, these two things were the single most noticable improvement in fuel efficiency - as long as the right foot didn't cancel it out. (A free-flowing exhaust also helped but I don't want the noise in this one).

I have read the threads posted herein on the subject of fuel gains with a CAI and there appears to be no agreement. I'm wondering if there is a cancelation affect as the ECU adjusts the fuel and air ratio thereby making the gain in hp/torque that does not necesarily translate into better mpg. I would think that efficiency gain would result in mpg gains. I'm not sure about this as my past cars were not controlled by computer. I think I need to delve into this a bit more. I would expect a modest increase but would need to know a number to justify the ROI. Having said that, its time to lower the car. This, of course, would be sans ROI - just looks...heh.

[lowkey]

Best to date
535 Km on one tank!
Driving without the A/C.
1 1/2 weeks of city daily driving.

[boris13]

Second tank: 33 mpg (up from 31 mpg on the first tank).

[naossoan]

I don't know what my MPG is currently.

But I filled it up last time and I'm down 3 bars at just over 200 Km I think, all city driving.

It's hard for me to like go all the way down to the fuel light on, cause I live on Vancouver island (Canada West coast) and if I go up island about 50 KM gas is like 8 cents cheaper...so I'll fill up on the way back there and stuff so it's hard to get an accurate reading (unless i see how much fuel I put in and do the math which I'm waaaay too lazy to do that haha.)

so I'll post when I get an accurate MPG reading.

[churp]

Originally Posted by naossoan

I don't know what my MPG is currently.

But I filled it up last time and I'm down 3 bars at just over 200 Km I think, all city driving.

It's hard for me to like go all the way down to the fuel light on, cause I live on Vancouver island (Canada West coast) and if I go up island about 50 KM gas is like 8 cents cheaper...so I'll fill up on the way back there and stuff so it's hard to get an accurate reading (unless i see how much fuel I put in and do the math which I'm waaaay too lazy to do that haha.)

so I'll post when I get an accurate MPG reading.

Guess you'll never know, because thats the only way to figure gas milage (unless you buy a scangauge), your fuel gage DOES NOT tell you how many gallons you used. Without keeping track for several fillups whether its a full tank or a quarter tank at a time you may as well be pickin a number between 25 and 50. No offense....but come on already!?!?

[Vanderkitten]

There are so many factors for gas mileage, what you need to do is be OK with what you are getting. People mis-calculate, there are atmospheric anomolies, gasoline variances, etc. The best thing to do is say, "Wow, I am 1/2 a tank and I've gone THAT MANY MILES! Beat the heck out of an SUV!" and be happy with it!

Here in the Bay Area, if you commute on one side of the bay, you get different gas mileage because of prevailing winds, than the other side of the bay. It could be a 6MPG difference, and you wouldn't even feel the wind...

[argylesocks]

wow! vanderkitten drives a yaris? sweet!! im in love with mandy.

Originally Posted by Vanderkitten

There are so many factors for gas mileage, what you need to do is be OK with what you are getting. People mis-calculate, there are atmospheric anomolies, gasoline variances, etc. The best thing to do is say, "Wow, I am 1/2 a tank and I've gone THAT MANY MILES! Beat the heck out of an SUV!" and be happy with it!

Here in the Bay Area, if you commute on one side of the bay, you get different gas mileage because of prevailing winds, than the other side of the bay. It could be a 6MPG difference, and you wouldn't even feel the wind...

[churp]

Yes milage varies with temp, road conditions, etc. ......but to say my half tank got me xxxmiles means nothing, it's not MIScalculating by not measuring, it's NOT calculating. Gas milage is the amount of gas used per mile, not miles divided by a guestimate of gallons, under the conditions that are existant. No one ever asks how good of milage do you get with a 30 mile wind behind you, or if you only go down hill....the only reason to ask is to get a factual answer by dividing the miles by the total number of gallons (miles per gallon), anything else is BS (or Pelosi/Read mumbo jumbo, all talk no facts).....Sorry I'm cranky tonight, I'll shut up before I really offend someone

[craigq]

Transmission: Automatic
Driving style: Pretty sedate. Some A/C use.
Driving cycle: not sure, maybe 65/35 HWY/CTY
KM: 423
Fuel to fill: 26.647L
6.3 L/100KM
15.87 KM/L
44.84 IMP MPG
37.34 US MPG

[BailOut]

This tank is only a few days old but I set a new personal record for distance before losing the first pip on the fuel gauge:



My normal commuting drains the first pip between 85 and 90 miles, and even on road trips it usually doesn't last longer than 104 miles. I'm anxious to see how this pans out across the whole tank.

[Pars]

Originally Posted by BailOut

This tank is only a few days old but I set a new personal record for distance before losing the first pip on the fuel gauge:



My normal commuting drains the first pip between 85 and 90 miles, and even on road trips it usually doesn't last longer than 104 miles. I'm anxious to see how this pans out across the whole tank.

Wow, how'd you manage that? My guess is that you hooked sail to the top of the car and had the wind blow it around in the back roads

[hystria]

Originally Posted by Pars

Wow, how'd you manage that? My guess is that you hooked sail to the top of the car and had the wind blow it around in the back roads

that too, but also tank refilled to max possible level , thus first line means way above 5 liters, probably somewhere 7-8 liters

[BailOut]

Originally Posted by hystria

that too, but also tank refilled to max possible level , thus first line means way above 5 liters, probably somewhere 7-8 liters

I never fill beyond a pump's automatic shut-off, and with few exceptions
I always use the same pump at the same station.

[hystria]

Originally Posted by BailOut

I never fill beyond a pump's automatic shut-off, and with few exceptions
I always use the same pump at the same station.

reading back again, that's 140 MILES on one bar, considering the first bar to be 1.5 gallon, that's about 100MPG...

your fuel level sensor could be wrong ?

[Pars]

Originally Posted by hystria

that too, but also tank refilled to max possible level , thus first line means way above 5 liters, probably somewhere 7-8 liters

Yep, the first drop is about 7 to 8 Liters. But I believe Bailout's 141.2 reading is in miles, which would equate to 226km.