Fuel Economy - Page 86 - Toyota Yaris Forums

Nigal · 08-25-2007, 07:07 AM

Forgive me Yari for I have sinned. It's been 6200 miles since my last oil change. :(

I wasn't able to get under the car and get it done and went a little over on my oil change. And boy did my mileage go in the shitter! An all time low of 26 MPG on an 8.73 gallon fill up. :(

g man · 08-25-2007, 02:07 PM

Just filled my new yaris for the first time. 578 km on a tank. Filled up with 37.8 liters. I think that works out to around 6.5 L / 100 km. Thats aboyt 75% city driving with some air conditioning. Can't complain about that!

jdium · 08-25-2007, 05:37 PM

diesel empeegees > gasoline empeegees

I'd like a small 600cc car if I knew I didn't have to drive much at freeway speeds or up anything steeper than a crushed dixey cup...

churp · 08-25-2007, 06:26 PM

Thought I'd post a copy of my mileage spreadsheat....maybe a little boring, but someone may be interested.

churp · 08-25-2007, 06:43 PM

Quote:

Originally Posted by swng

I have also had a Honda 600. If I remember correctly, it was a car with a two-stroke engine. In the place where I lived then, I think it was called Honda N600. Just can't remember clearly. It was a frugal car but I believe it won't pass the stringent exhaust tests of today.
Also, I have been told that small engines enjoy very good fuel economy in city traffic but loose their advantage to slightly bigger engines at highway speeds. Correct me if I am wrong.
The small Honda may have given me good memories but rationally, it should possibly be inferior to the Yaris in almost every important respect.

It was a 4 stroke, air cooled, 2 cylinder....and yes it was inferior to any car built today, but fun. I always got 30 mpg, town or hwy, because of leadfoot disease. I saw one win best mileage in a rally at 60 mpg, but was disqualified because of emissions....I think the govenment is wrong using parts/million in their standards, it should be parts per mile---then we would really get rid of the large displacement engines (a 454 ci engine puts out 12 times as much exhaust as the 600cc). Yes, I think it was a n600, they had a sedan which was a total block and the coupe which was a smoothed block.

sherryberry · 08-25-2007, 07:37 PM

HOLY COW, CHURP.. that's one detailed spreadsheet! lol

swng · 08-25-2007, 07:55 PM

Re: Posts #1541-1542.
Thanks churp for sharing your data and your good memories! It is the nice and knowledgeable people like you that make me come back to watch this thread time and again.
It appears from your spread sheet that your mpg numbers are very good. If you are not hypermiling (frankly, it appears from the numbers that you are not), you must have been driving very conscientiously. Your lead foot disease must have healed completely.

churp · 08-25-2007, 10:36 PM

Quote:

Originally Posted by swng

Re: Posts #1541-1542.
..... Your lead foot disease must have healed completely.

The first 1.5 months it maybe came back for a while....but it may not have been broken in, and at that point I put on the Megan springs and aired the tires to 40 psi. As far as hypermiling the only thing I do is (most of the time) I coast down 1 hill (about 1/2 mile) in neutral going and coming from work, 40 mile round trip. Most of my miles driven are 2 lane blacktop at 55-65 mph, but I've taken 2 1k trips at 70-80 mph.

I'm happy with the automatic, although I'm sure the 5sp would do better.

g man · 08-25-2007, 11:17 PM

Hey Can you send a copy of that spread sheet??

swidd · 08-25-2007, 11:21 PM

With my manual Yaris, bought used with 8300 miles on it two weeks ago:
Tank1:
37.8MPG, n00b driving, 80% city, traffic jams. 170 miles. Tire pressure 32psi.
Tank2:
277 miles, 35.2MPG, 70% highway going 75-80mph, trying to "hypermile" by turning off engine in intersections and tailgating trucks/trailers to lessen drag. Tire pressure 32psi with 28psi on right front tire, causing right turning tendency and unstable handling.
Tank3:
402 miles, 40.5MPG, 75% highway, one 70 mile trip to the top of a mountain (8000 feet altitude, 6000 feet altitude gain/ascent), three 52-mile trips to work, one 122 mile trip to another place of work and about 5 trips in city stop&go traffic. 60-65mph even on interstate, turning off engine as often as I can, including in downhill traffic and rolling into my parking spot. Tire pressure increased to 38psi on all tires, noticeable reduction in rolling resistance and improved handling.
Tank 4 - filled today: Cost for filling up: $30.29. 9.917 gallons, which means I had well over a gallon left. In the future I will drive to 400 miles and then start looking for a gas station somewhere in the next 50 miles!! (still had two bars left when I filled it up at 402 miles).

I drive about 2700 miles/month.

With my Yaris:
- The 52 mile round trip to local place of work costs $4.
- The 177 mile round trip to distant place of work costs $13 driving 70mph, $15 if keeping up with traffic at 80mph.
- Cars are constantly stuck behind me trying to pass, constantly tailgating and signaling for me to speed up.
- My estimated monthly gas expense is just around $210/month.
- I will visit the gas station five times less per month than before. This translates to less soda, ice cream, hot dogs etc. I will lose weight because of Yaris!

With my old Ford Explorer V8:
- The 52 mile round trip to local place of work would cost $12.
- The 177 mile round trip to distant place of work usually cost $27 dollar if I drove 5 below speed limit - $32-$35 if I followed the traffic flow at 80mph. Minimum pay at this place of work is $40/day if activity is low, so there goes my profit.... I would be at the gas station every day to have enough fuel for the round trip.
- I drove up the mountain mentioned above, with over 3/4 tank of gas (about 16-17 gallons). I drove down the mountain 70 miles later with tank empty light flashing!! (engine didn't handle increase in altitude very well.....).
- Cars would still be stuck behind me due to my slow driving, but would not signal for me to get out of the way.
- My monthly gas expense was $550/month (using premium gas to obtain higher MPG - cost would be slightly higher using regular gasoline which in my experience gave significant reduction in MPG).

g man · 08-26-2007, 08:58 AM

Has anyone experimented with the difference between regular and premium fuel in the Yaris, Is there a worthwhile gain to justify the extra cost?

Glenn

BailOut · 08-26-2007, 11:48 AM

swidd:

Good stuff, and it will only get better as you dial it in some more. :)

g_man:

You just opened up a flamefest-worthy topic, but I'll bite. First let me say I am not a scientist nor an automotive engineer. I'm just a Joe Six Pack that did his own testing, using his own driving style.

As most of you know, my driving style is feather-light, as is the hypermiling way.

I tried 89 octane for 3 tanks and lost 8% of my MPG.

Yes, my ignition timing didn't retard as much with the higher octane (on average 89 octane was 6 points advanced), and there was a small amount of more torque available (i.e. I could climb Mount Rose to Thomas Creek in 5th gear WOT instead of 4th gear 80%), but it simply used more fuel to accomplish these things.

87 octane and a light driving style is where the efficiency is at.

leasaunce · 08-26-2007, 12:29 PM

quick question, does the hatchback (liftback) Yaris has the "how many Litre/100km" gauge? (the australia version)

Masteraal · 08-26-2007, 12:49 PM

Quote:

Originally Posted by leasaunce

quick question, does the hatchback (liftback) Yaris has the "how many Litre/100km" gauge? (the australia version)

it wouldnt be extremely accurate anyway. easiest way is to divide the km done by the litres put into the car at the servo

Bredayaris · 08-26-2007, 05:20 PM

What octane number is standard in the USA for example?

Here in the Netherlands for petrol it's 95 and 98, anyway not lower than 95.

g man · 08-26-2007, 05:54 PM

I believe standard Octain in the States and Canada is 87 for regular fuel.

BailOut · 08-26-2007, 05:55 PM

It can vary a bit in the U.S., but I'd say that at least 90% of the stations in the country serve 87 (regular), 89 (super) and 93 (premium or supreme) octane, with most vehicles capable of working with the 87.

Like just about every other measurement system, the U.S. uses a screwed up one when it comes to measuring octane. See: http://en.wikipedia.org/wiki/Octane_...rement_methods

g man · 08-26-2007, 06:05 PM

keep in mind what some have been saying on this site. Don't let your fuel level get too low since apparently the gas pump motor is cooled by the gas in the tank? Don't know if this is true but if it is then its a good reason to fill at 1/4 tank.

08-25-2007, 07:07 AM	#1531
Nigal Drives: 2007 Yaris S Join Date: May 2007 Location: Piqua, Ohio Posts: 302	Forgive me Yari for I have sinned. It's been 6200 miles since my last oil change. :( I wasn't able to get under the car and get it done and went a little over on my oil change. And boy did my mileage go in the shitter! An all time low of 26 MPG on an 8.73 gallon fill up. :( __________________ ********************************* "Emancipate yourselves from mental slavery; None but ourselves can free our minds."

08-25-2007, 05:37 PM	#1533
jdium Mr Attitude Drives: Blazing Blue 5 Spd Join Date: Jun 2007 Location: Hillsboro Posts: 302	diesel empeegees > gasoline empeegees I'd like a small 600cc car if I knew I didn't have to drive much at freeway speeds or up anything steeper than a crushed dixey cup... __________________ It's scary to think that half the people surrounding you are below average...

08-25-2007, 06:26 PM	#1534
churp Clean and (dis)Functional View User's Garage Drives: Yaris 2dr--Black Betty Join Date: Mar 2007 Location: Tropical Minnesota Posts: 562	Thought I'd post a copy of my mileage spreadsheat....maybe a little boring, but someone may be interested. Attached Images __________________ ____________ Old School Cobble Jockey

08-25-2007, 07:37 PM	#1536
sherryberry Drives: 07 Blazing Blue Yaris Join Date: Jun 2007 Location: Illinois Posts: 1,305	HOLY COW, CHURP.. that's one detailed spreadsheet! lol __________________ Don't Milk the Cat! -Said by me during a game of Cranium.

08-26-2007, 08:58 AM	#1541
g man g_man Drives: Yaris 5 Door Join Date: Aug 2007 Location: Hamilton Ontario Posts: 14	Gas Milage Has anyone experimented with the difference between regular and premium fuel in the Yaris, Is there a worthwhile gain to justify the extra cost? Glenn

08-25-2007, 02:07 PM	#1532
g man g_man Drives: Yaris 5 Door Join Date: Aug 2007 Location: Hamilton Ontario Posts: 14	Just filled my new yaris for the first time. 578 km on a tank. Filled up with 37.8 liters. I think that works out to around 6.5 L / 100 km. Thats aboyt 75% city driving with some air conditioning. Can't complain about that!

08-25-2007, 07:55 PM	#1537
swng Drives: 06 3-dr auto RS Join Date: Jan 2006 Location: BC Posts: 1,051	Re: Posts #1541-1542. Thanks churp for sharing your data and your good memories! It is the nice and knowledgeable people like you that make me come back to watch this thread time and again. It appears from your spread sheet that your mpg numbers are very good. If you are not hypermiling (frankly, it appears from the numbers that you are not), you must have been driving very conscientiously. Your lead foot disease must have healed completely.

08-25-2007, 11:17 PM	#1539
g man g_man Drives: Yaris 5 Door Join Date: Aug 2007 Location: Hamilton Ontario Posts: 14	Hey Can you send a copy of that spread sheet??

08-25-2007, 11:21 PM	#1540
swidd Drives: Yaris HB Join Date: Jul 2007 Location: Central Alabama, GOD BLESS AMERICA Posts: 755	With my manual Yaris, bought used with 8300 miles on it two weeks ago: Tank1: 37.8MPG, n00b driving, 80% city, traffic jams. 170 miles. Tire pressure 32psi. Tank2: 277 miles, 35.2MPG, 70% highway going 75-80mph, trying to "hypermile" by turning off engine in intersections and tailgating trucks/trailers to lessen drag. Tire pressure 32psi with 28psi on right front tire, causing right turning tendency and unstable handling. Tank3: 402 miles, 40.5MPG, 75% highway, one 70 mile trip to the top of a mountain (8000 feet altitude, 6000 feet altitude gain/ascent), three 52-mile trips to work, one 122 mile trip to another place of work and about 5 trips in city stop&go traffic. 60-65mph even on interstate, turning off engine as often as I can, including in downhill traffic and rolling into my parking spot. Tire pressure increased to 38psi on all tires, noticeable reduction in rolling resistance and improved handling. Tank 4 - filled today: Cost for filling up: $30.29. 9.917 gallons, which means I had well over a gallon left. In the future I will drive to 400 miles and then start looking for a gas station somewhere in the next 50 miles!! (still had two bars left when I filled it up at 402 miles). I drive about 2700 miles/month. With my Yaris: - The 52 mile round trip to local place of work costs $4. - The 177 mile round trip to distant place of work costs $13 driving 70mph, $15 if keeping up with traffic at 80mph. - Cars are constantly stuck behind me trying to pass, constantly tailgating and signaling for me to speed up. - My estimated monthly gas expense is just around $210/month. - I will visit the gas station five times less per month than before. This translates to less soda, ice cream, hot dogs etc. I will lose weight because of Yaris! With my old Ford Explorer V8: - The 52 mile round trip to local place of work would cost $12. - The 177 mile round trip to distant place of work usually cost $27 dollar if I drove 5 below speed limit - $32-$35 if I followed the traffic flow at 80mph. Minimum pay at this place of work is $40/day if activity is low, so there goes my profit.... I would be at the gas station every day to have enough fuel for the round trip. - I drove up the mountain mentioned above, with over 3/4 tank of gas (about 16-17 gallons). I drove down the mountain 70 miles later with tank empty light flashing!! (engine didn't handle increase in altitude very well.....). - Cars would still be stuck behind me due to my slow driving, but would not signal for me to get out of the way. - My monthly gas expense was $550/month (using premium gas to obtain higher MPG - cost would be slightly higher using regular gasoline which in my experience gave significant reduction in MPG).

08-26-2007, 11:48 AM	#1542
BailOut Steals terrorist's lunch View User's Garage Drives: 2007 Yaris Liftback Join Date: Mar 2007 Location: Reno, Nevada, USA Posts: 1,299	swidd: Good stuff, and it will only get better as you dial it in some more. :) g_man: You just opened up a flamefest-worthy topic, but I'll bite. First let me say I am not a scientist nor an automotive engineer. I'm just a Joe Six Pack that did his own testing, using his own driving style. As most of you know, my driving style is feather-light, as is the hypermiling way. I tried 89 octane for 3 tanks and lost 8% of my MPG. Yes, my ignition timing didn't retard as much with the higher octane (on average 89 octane was 6 points advanced), and there was a small amount of more torque available (i.e. I could climb Mount Rose to Thomas Creek in 5th gear WOT instead of 4th gear 80%), but it simply used more fuel to accomplish these things. 87 octane and a light driving style is where the efficiency is at. __________________ - Brian Share the Road I often carry 2 carpool passengers and mountain bikes or snowboards/skis over a 4,500 foot elevation difference. Click the graphic above to see my detailed mileage logs.

08-26-2007, 12:29 PM	#1543
leasaunce Drives: Toyota Yaris Join Date: Jul 2007 Location: Sydney, Australia Posts: 131	quick question, does the hatchback (liftback) Yaris has the "how many Litre/100km" gauge? (the australia version)

08-26-2007, 05:20 PM	#1545
Bredayaris Drives: Toyota Yaris 1.3 vvti cvt Join Date: May 2007 Location: Breda, The Netherlands Posts: 158	What octane number is standard in the USA for example? Here in the Netherlands for petrol it's 95 and 98, anyway not lower than 95.

08-26-2007, 05:54 PM	#1546
g man g_man Drives: Yaris 5 Door Join Date: Aug 2007 Location: Hamilton Ontario Posts: 14	octain # I believe standard Octain in the States and Canada is 87 for regular fuel.

08-26-2007, 05:55 PM	#1547
BailOut Steals terrorist's lunch View User's Garage Drives: 2007 Yaris Liftback Join Date: Mar 2007 Location: Reno, Nevada, USA Posts: 1,299	It can vary a bit in the U.S., but I'd say that at least 90% of the stations in the country serve 87 (regular), 89 (super) and 93 (premium or supreme) octane, with most vehicles capable of working with the 87. Like just about every other measurement system, the U.S. uses a screwed up one when it comes to measuring octane. See: http://en.wikipedia.org/wiki/Octane_...rement_methods __________________ - Brian Share the Road I often carry 2 carpool passengers and mountain bikes or snowboards/skis over a 4,500 foot elevation difference. Click the graphic above to see my detailed mileage logs.

08-26-2007, 06:05 PM	#1548
g man g_man Drives: Yaris 5 Door Join Date: Aug 2007 Location: Hamilton Ontario Posts: 14	keep in mind what some have been saying on this site. Don't let your fuel level get too low since apparently the gas pump motor is cooled by the gas in the tank? Don't know if this is true but if it is then its a good reason to fill at 1/4 tank.