Fuel Economy

[GabL]

Originally Posted by why?

Interesting article, but it didn't exactly cover anything new. Something the person prolly wrote in 5 minutes.

The big question to me is can the extra gas mileage you get with premium cover the extra cost of that fuel.

Quote from the article: "According to Petro-Canada, "There is generally only a small difference in gas mileage, about 2 per cent, between premium and regular gasoline. This difference tends to favour premium gasoline.""

And the price difference of 87 and 91 for Sunoco is 11.6% (94.5 VS 105.5 per litre as I fuelled up last night). So you can do the math to see if 11.6% of extra cost giving you 2% more mileage is acceptable for you or not.

[why?]

Originally Posted by GabL

Quote from the article: "According to Petro-Canada, "There is generally only a small difference in gas mileage, about 2 per cent, between premium and regular gasoline. This difference tends to favour premium gasoline.""

And the price difference of 87 and 91 for Sunoco is 11.6% (94.5 VS 105.5 per litre as I fuelled up last night). So you can do the math to see if 11.6% of extra cost giving you 2% more mileage is acceptable for you or not.

LOL, I missed that first part. At best, 2% better might equal 41 mpg instead of 40.

I need to change it all into numbers I can get.

Prices around here seem to start at about 2.72 per gallon. That means super will be 2.92 per gallon.
So you get 11 extra miles for $2.20.

2.20 is 80% of a gallon of regular gas which would get 40 mpg. So just by those numbers it would not be worth it.

[Ziv]

Yeah, like I mentioned a thousand times, DO NOT TRUST THE FUEL GAGUE. Only use it as a reference. After 485 clicks, I still have 2 bar left, maybe roughly a bar and a half. I use a bar / 5 Litre as my guide.

[johnny]

My Diesel Yaris has 1500 km on it and I got 660km using 37,3 L of Diesel fuel with a regular driving style. This is nerly all city driving (80%C/20%H) in cold weather -3 to +5 Celsius.
According to Toyota the Yaris D4D should be able to get up 940 km to the tank. So I look forward to when my Yaris will be completely broken in and some warmer weather to see what kind of economy figures I will be getting.

[stuffy]

wow, that is incredible, now why won't they bring that engine to us?

[jay]

Back again with some more data

My observed fuel economy continues to improve. If I were to guess, I'd say the change to warmer spring temps have been a significant factor (nothing else has really changed).

I now have 7600km on the clock, and the results from last 4 tanks (going back to the 1st wk of March, all on 10% ethanol):

7.04L/100km - 70 hwy/30 city
6.73L/100km - 70 hwy/30 city
6.76L/100km - 55 hwy/45 city
6.36L/100km - 70 hwy/30 city (today's fill up)

To put this into context, my avg over the winter was ~7.1L/100km. I was especially surprised w/today's fill up number, since that's within a few % of the spec sheet numbers, when you bother to carry out the (admittedly estimated) calc. Anyhow, it'll be interesting to see if others have experienced a similar trend.

[why?]

Originally Posted by stuffy

wow, that is incredible, now why won't they bring that engine to us?

Does Canada have the low sulfur gas they use in Europe?

I know the USA doesn't.

Our gas would destroy that engine in short order.

[Idjiit]

I got about 35MPG on my first tank, fwiw.

[stuffy]

Does Canada have the low sulfur gas they use in Europe?

I know the USA doesn't.

Our gas would destroy that engine in short order.

not sure, but i would assume we have the same diesel fuel as the u.s

[Idjiit]

FWIW, that 35MPG is with fairly aggressive driving. Breakin-in, smake-in.

[D.A.L]

Hey all. I got the car Feb 1/06. 2006 Yaris 5 door LE, auto. $21,000 all up - out the door, full tank. I have excluded the dealer fillup. I live in Toronto and 80 -90% of the driving was highway with a few trafic jams here and there.
Tank 1) 521km @ 38l = 7.29l/100 = u.s 32.27 or 38.75 imp mpg 2)560km @ 39.2l = 7.0l/100 = us33.6 or 40.35 imp mpg 3) 528 @ 38.8l = 7.34l/100 = us 32.05 or 38.49 imp mpg 4) 590 @ 39.3l =6.66l/100 = us35.21 or 38.75 imp mpg 5) 598km @ 39.47l = 6.68 l/100 = us 35.21 or 42.29 imp mpg 6) 594 km @ 39.5 = 7.29l/100 = us 32.27 or 38.75 ipm mpg 7) 642km @ 40.66l = 6.33l/100 = us 37.16 or 44.63 imp mpg 8) 773km @ 48.08l = 6.21l/100 = us 37.88 or 45.49 imp mpg 9) 330km @ 21.67l = 6.56l/100 = us 35.86 or 43.06 ipm mpg.
The car has about 6000km on it now. I drove very conservatively. Feb-march temperatures were around -4 deg Celsius.
Tire pressure was at 40 lbs. I got about 70-80km/bar average. I drove it to the flashing bar. I have never filled up past the 40l mark yet. For my long trips I would fill maybe 10l then add it to my total at the next fill up. COMMENTS ON THE CAR: Good points - considered a green car re: emissions, lots of interior room, decent sound system, great hp even when passing on the highway, decent mileage, fairly quiet on the highway, good fit and finish, nice control layout. Bad points: buffeting makes rear windows basically useless above 70kpm, 1st gear is way to low especially in city traffic re; it changes from 1st to 2nd then back down way to many times, OD gear on highway is way to low re: at 100kph your driving at 3000 rpm which creates way to much engine breaking when you let off the gas - even when going down hill which means you can't let off the gas going down a big hill without slowing down,
Harmonic engine vibration at 100kph (I’m going to get that checked), the black material used for the dash and door panels marks or scuffs way to easy and is hard to wipe down with anything but a damp cloth, needs cruise control, wipper motors, front and rear, are way to noisy, headlights should come ON AND OFF with the engine (it is 2006!). My expectations for this car are 1) great gas mileage as advertised, very low emissions as advertised, longevity because it's a Toyota. If you want to do your own mpg or l/100k conversions just google - fuel conversions or miles per gallon conversion- and you should hit a few sites with automatic conversion tables. For l/100k just divide you total km's by 100 then divide your total lters used by that number. ie. 592 km @ 38.5 lters = 38.5/5.92 = 6.5 l/100km. Thanks, bye for now, Don

[AlphaFox]

Please post if your using Imperial or US MPG #s. The #s on the last 2 pages dont state this so I cant make sense of the readings.

[Ron]

Don, how in blazes did you manage to jam 48L into a fill? Must have been running it on fumes for the last 50km's!! It's a 42L tank, but taking into account the volume in the filler neck and the charcoal canister, you can probably put in a couple liters extra. but 6L!!

[Ziv]

Originally Posted by Ron

Don, how in blazes did you manage to jam 48L into a fill? Must have been running it on fumes for the last 50km's!! It's a 42L tank, but taking into account the volume in the filler neck and the charcoal canister, you can probably put in a couple liters extra. but 6L!!

No kidding. And Don, Thanks for the post!

My latest. again, mostly city -- 85%/15% cities/hwy.
37Litre / 480 clicks.
It should gets better soon, hopefully.

[ricko]

I don't think Don actually got 48L into the tank. He said that if he short-filled (less than a fill-up), he just added that total to his next fill-up. For example 10L + 38L = 48L ......... the only people that could get 48L into a 40L gas tank are the NASCAR boys.

[ricko]

2nd tank ........... 6.3L/100km. Mostly paved county roads, and a run to Brampton and back on Airport Road.

[Ziv]

How fast do you drive on those county roads? 110 ~ 130 km/h?

[Ziv]

Oh yeah, now we should have more inputs that we have more and more members.

23 Litres/ 360 Clicks. The warmer the better, huh.