Fuel Economy

[foober]

Got my scangaugeII today and went out and did some research.

I can tell you from just what I've seen so far most of your gas usage is in the lower gears and when your speeding up. While coasting on the highway the yaris gets around 60 miles to the gallon. It appeared to get even around 70 but that was going at around 55. I noticed that the slower you go in a higher gear the better gas milage you get. I guess thats a given. But even taking it very easy on the gas pedal in 1st and 2nd gear you only get around 15 to 25 miles to the gallon.

[ItsMyDaily]

Originally Posted by foober

Got my scangaugeII today and went out and did some research.

I can tell you from just what I've seen so far most of your gas usage is in the lower gears and when your speeding up. While coasting on the highway the yaris gets around 60 miles to the gallon. It appeared to get even around 70 but that was going at around 55. I noticed that the slower you go in a higher gear the better gas milage you get. I guess thats a given. But even taking it very easy on the gas pedal in 1st and 2nd gear you only get around 15 to 25 miles to the gallon.

what kind of equipment was used?

[foober]

Originally Posted by ItsMyDaily

what kind of equipment was used?

just the scanguageII gizmo. Here's the website. www.scanguage.com

Its a pretty amazing little thing. Does alot.

[ItsMyDaily]

Originally Posted by foober

just the scanguageII gizmo. Here's the website. www.scanguage.com

Its a pretty amazing little thing. Does alot.

wow thankx for the link. Pretty kool little thing. The prius's come with something similar sock. I'm ganna go ahead and order one.....it'll work as an rpm gauge also so

[swng]

Update:
Latest tank gave me 45.38 mpg (Imp), or 37.79 mpg (US), or 6.22 liters per 100 km. I started with a full tank and drove 628.4 km and refilled the tank till the nozzle clicked with 39.114 litres. The ratio between city and highway driving was around 30/70 and the AC was on about 20% of the time. The load was driver plus one with some personal belongings most of the time. My city is quite hilly.
NB: The result could have been inflated a little because unlike in the past, starting from the latest tank, I heeded advices about not to "fill till it spill" whilst for the tank before that one, I did just that.
Here are some more details:

Fuel Cost
$37.71

Distance travelled
628.4 km
390.49 miles

Fuel Amount
39.11 litres
10.33 US gallons
8.6 Imperial gallons
Cost of Fuel
$0.96 per litre
$3.65 per US gallon
$4.38 per Imperial gallon

Fuel Economy
6.22
litres per 100 km
37.79
miles per US gallon
45.38
miles per Imperial gallon

Mileage Costs
6.001
¢ents per km
9.66
¢ents per mil

[ItsMyDaily]

do you guys think it would help an auto yaris to be in neutral at red lights or when stoped rather then being on the brake.
I'm to used to manuel cars :D

[Racer X-8]

Originally Posted by ItsMyDaily

do you guys think it would help an auto yaris to be in neutral at red lights or when stoped rather then being on the brake.
I'm to used to manuel cars :D

Your mpg would be negligible -to- zero change. You're in LA. Do you sit in snarled traffic jams that much? I'm hardly ever sitting still, so even if it mattered, the % of "driving" time sitting still is negligible to zero by itself. I would be more concerned about the effects of the abnormally high amount of shifting in and out of "drive". What mechanism(s) might wear-out doing that? I dunno, maybe that's no biggie.

[ItsMyDaily]

Originally Posted by Racer X-8

Your mpg would be negligible -to- zero change. You're in LA. Do you sit in snarled traffic jams that much? I'm hardly ever sitting still, so even if it mattered, the % of "driving" time sitting still is negligible to zero by itself. I would be more concerned about the effects of the abnormally high amount of shifting in and out of "drive". What mechanism(s) might wear-out doing that? I dunno, maybe that's no biggie.

I believe the La traffic is what is getting me in the mpg category. Needless to say I tend to back many back streets to avoid it. I do get caught sometimes though, but not much you can do there. I did not think of anything being worn do to the shifting involved going to nuetral, and back to drive again..hmmm...I'm curious to know if anything would be effected in the long run as well.

From what I've been reading though. People are averaging their mpg's driving between 55-60mph. While I tend to keep mine between 60-70mph. It's kinda hard not to go faster when you drive in LA highways, where everyone is basically speeding. even the people that aren't trying to speed are going over the limit.

[ketel0ne]

Originally Posted by ItsMyDaily

I believe the La traffic is what is getting me in the mpg category. Needless to say I tend to back many back streets to avoid it. I do get caught sometimes though, but not much you can do there. I did not think of anything being worn do to the shifting involved going to nuetral, and back to drive again..hmmm...I'm curious to know if anything would be effected in the long run as well.

From what I've been reading though. People are averaging their mpg's driving between 55-60mph. While I tend to keep mine between 60-70mph. It's kinda hard not to go faster when you drive in LA highways, where everyone is basically speeding. even the people that aren't trying to speed are going over the limit.

Come check out all the Yarii at http://www.gassavers.org you can see every logged tank of gas for most of the drivers there.

[ItsMyDaily]

Originally Posted by ketel0ne

Come check out all the Yarii at http://www.gassavers.org you can see every logged tank of gas for most of the drivers there.

wow sweet website, thankx for the link. Man there are guys getting great mpg's!!

Well today I tried to keep the yaris below 60 on my daily commute and I got it to go 65miles before the first bar went away. Before on my normal driving it would go away after 50-52miles everytime. I guess it really just depends on the rpm this car is driven at. Maybe it's time to get a rpm tach.

[Racer X-8]

Nah. One of the most major things your car has to overcome at 60mph is wind resistance. Wind resistance is simply what your hand feels when you stick it out of the window. Wind resistance increases EXPONENTIALLY with SPEED. Another resistance that increases with speed is rolling resistance, but that aint no biggie on hard road and properly inflated tires, but it does exist and does increase with SPEED. You have the correct gage - the SPEEDometer. Tach's are good to have though, but not for this reason.

[pxpaulx]

my first gas guage bar typically drops between 70 and 80; 1 or 2 tanks dropped earlier, 1 or 2 dropped later. i just drove from minneapolis to toronto and back again. i had about 1900 miles before the trip and 4200 after. averaged probably 60-65mph and 300 miles of all city driving while in toronto. bumped my lifetime average from 36.5 to 38.02mpg. i had 4 tanks over 40mpg on the trip, very happy about that! the last one was over 43! i didn't think it was legit, but the current tank is dropping at regular intervals, so i guess it was. i'm very impressed. got an oil change last night, switched over to mobil 1 so we'll see if there is any improvement from that too.

[nsmitchell]

31 MPG

[swng]

I think the numbers are not bad, Jem hadar, especially the last tank.

[Jem_hadar]

Originally Posted by swng

I think the numbers are not bad, Jem hadar, especially the last tank.

Thanks, not as good as many here, but im not hating them.

the last tank was so good, bc I had to drive like 600 kms to North Bay and back, with like NO city driving and had no weight at all in my car but for me.

(though I was still surprised at the 43 mpg, bc i was driving 130, 140 the whole way there at back... so i wasnt exactly driving at an fuel economical speed)


I usually drive to TO a lot, so that = 400 ish kms of high driving, but when when i make these trips it always for the weekend, im weighted down w/ a cooler full of ice and a two-four of beer, my bags for of clothes and shit. So that's heavy and extra weight,
.
plus once im IN Toronto, i always end up driving places Downtown, so there's a good mileage killer

I figure thats why Ive only been in the high 30s basically

Jem

[nsmitchell]

33.1 MPG = Pumped my tires up to 42PSI. 3300 miles so far.

[foober]

I've been noticing that if I cruise at 65 to 70 miles an hour on the highway in 5th gear I'm getting 50 to 60+ miles to the gallon. Thats using my scangaugeII device to be able to check on gas usage. Its the picking up speed that uses the most gas. But while cruising you can get rediculously good gas milage.

Here's the scangaugeII website where you can order one if you want. http://www.scangauge.com/

I really recommend it. It tells you so much how your car is working. Great product.

[swng]

Foober said above: "Its the picking up speed that uses the most gas. But while cruising you can get rediculously good gas milage."
Very very true. When cruising forward at a constant speed, the car only consumes gas to overcome friction, including wind resistance. However, when the car tries to pick up speed or change direction, it has to consume more gas to overcome inertia in addition to friction.