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Toyota Yaris Real-World MPG

472 messages,  Last post on Oct 23, 2009 at 11:40 AM

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What is this discussion about? Toyota Yaris, Fuel Efficiency (MPG), Hatchback


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#233 of 472
Re: My performance [jollyreaper] by robertkn
Mar 02, 2007 (9:16 am)
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Replying to: jollyreaper (Feb 28, 2007 11:31 am)

"There is no emoticon for the look of blank....confusion. So I'm nerfing my car's performance with the left/right clicky thing? Why wasn't that in the manual? I read the whole transmission section to see if this had anything to do with anything and no mention of it was made! Ok, this is replacing "lack of cruise control" as worse feature about the car.
  
Could I have been causing damage driving in third gear like this?"

 
See pages 125-127 of your manual. It is explained there and will answer your question.
 
Don't feel too bad; I did the same thing. But, fortunately it was with the Scion loaner we were provided before our Yaris arrived. My wife was the one who brought it to my attention when she noticed me leaving the shifter in 3rd gear. Although I initially protested she said, "I read it in the manual." Upon actually looking at the labeling of the shifter and "thinking" I had to agree with her. What are ya gonna do?
 
It isn't a design or documentation deficiency. It's "us." If you're used to driving a car with an "in-line" shifter pattern it's an easy mistake to make. Maybe they could improve the manual with some bold, colored text to draw this to the readers attention, but a lot of people would probably still overlook it. Who reads the manuals anyway?
#234 of 472
Re: coasting... [nippononly] by jkandell
Mar 02, 2007 (9:23 am)
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Replying to: nippononly (Dec 01, 2006 6:23 pm)

"You don't "slam it" back into gear, you match the revs to the speed and slip it back into gear without a quiver."
 
Do you really need to rev-match on contemporary cars like the Yaris? (Is this what they used to call "double clutching"?) I thought automobile manual transmissions ensured the gears were always in synch before meshing, in comparison to, say, my vespa scooter which would grind if you don't match the rpm's.
#235 of 472
Re: coasting... [jkandell] by nippononly
Mar 02, 2007 (12:48 pm)
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Replying to: jkandell (Mar 02, 2007 9:23 am)

Yes, all manual transmissions have synchros on every forward gear, but you can sure take it easier on your synchros if you do what I described. And certainly if the speed of the engine is very different from the speed of the gear you are trying to engage, you may get the occasional "crunch" if you don't rev-match, depending on how good your car's synchros are.
 
And no, that's not double-clutching.
#236 of 472
Re: coasting techniques for better mpg [jkandell] by nippononly
Mar 02, 2007 (12:51 pm)
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Replying to: jkandell (Mar 02, 2007 8:45 am)

"To push things further, you can also sometimes use engine braking (which uses no fuel) in situations where you need to decelerate, rather than coasting (which uses a small amount of fuel to maintain idle). Not sure if I'm right about that last one, though, just what it seems to me."
 
Any time your engine is running, it is using gas. It can't run without it. So coasting in gear (with a manual) using the engine to brake uses roughly the same amount of fuel as just allowing it to idle. But engine braking will increase the life of your brake pads and helps the piston rings seat as well.
#237 of 472
Re: coasting... [nippononly] by jkandell
Mar 07, 2007 (4:51 pm)
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Replying to: nippononly (Mar 02, 2007 12:48 pm)

"Yes, all manual transmissions have synchros on every forward gear, but you can sure take it easier on your synchros if you do what I described."
 
One way to match the revs from neutral to a gear is to blip the throttle a bit before shifting. I don't like that because it's wasted gas--which is what I'm in neutral trying to avoid. So what I've been doing most of the time is shifting into a slightly higher gear than is recommended in my manual. A higher gear means lower rpm, which results in a closer rev match to neutral; and since I'm already coasting I don't really need as much torque. Make sense?
#238 of 472
Re: coasting techniques for better mpg [nippononly] by jkandell
Mar 07, 2007 (7:12 pm)
Reply

Replying to: nippononly (Mar 02, 2007 12:51 pm)

"Any time your engine is running, it is using gas. It can't run without it. So coasting in gear (with a manual) using the engine to brake uses roughly the same amount of fuel as just allowing it to idle."
 
If you're idling the engine has to use fuel to keep things moving just enough. But if you're engine braking, doesn't the ecu on cars like the yaris shut off the fuel injectors? The moving pistons from momentum keeps it "running", no?
#239 of 472
Re: coasting techniques for better mpg [jkandell] by lucynethel
Mar 08, 2007 (6:52 am)
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Replying to: jkandell (Mar 07, 2007 7:12 pm)

I read on & ON about this poor gas mileage and how it has GOT to be for a bunch of ridiculous reasons on "THIS" group. Yet every other REAL group of owners show a ton of us who just don't get good gas mileage!Seems to be tied to age AND driving expertize of the members of the "REAL" Yaris groups too. Suggest everyone try:
 
http://www.yarisworld.com/
 
And for the RECALLS:
http://www.tundrasolutions.com/forums/yaris/71419
-yaris-recalls/
 
http://au.toyotaownersclub.com/forums/lofiversion/index.php/f6.html
 
http://www.toyotanation.com/forum/f26
 
There are so many more if anyone discovers GOOGLE......
 
 Point being, a LOT of folks routinely get 25-26 MPG City and 30-32 MPG Highway. A LOT of folks are just "dreaming".......
#240 of 472
Re: coasting techniques for better mpg [lucynethel] by jcash2ds
Mar 08, 2007 (10:09 am)
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Replying to: lucynethel (Mar 08, 2007 6:52 am)

I read on & ON about this poor gas mileage and how it has GOT to be for a bunch of ridiculous reasons on "THIS" group. Yet every other REAL group of owners show a ton of us who just don't get good gas mileage!Seems to be tied to age AND driving expertize of the members of the "REAL" Yaris groups too.
 
Didin't you give up your Yaris? You are the one still looking in every nook and cranny for something against the gas mileage...
 
 Suggest everyone try:
  
http://www.yarisworld.com/

 
Yes do look at YarisWorld.com - a great bunch of Yaris fans there. Here's the link:
http://www.yarisworld.com/forums/showthread.php?t=38
 
Look for yourself and tell me how many- better yet, what percentage- of the people are getting the "horrible mileage" you claim. What is horrible? 29?? That beats most other cars' Real World MPG, any make, any model in the city.
  
And for the RECALLS:
http://www.tundrasolutions.com/forums/yaris/71419
-yaris-recalls/

 
As for recalls, maybe you need to read the article before you try and scare someone.
Link: http://www.tundrasolutions.com/forums/yaris/71419-yaris-recalls/
 
Comment : "" NEWS: Toyota recalls vehicles over faulty engine part
 
TOKYO (AP) -- July 18, 2006 — Toyota said Tuesday it is recalling about 420,000 vehicles globally, including some Echo and Prius models sold in the USA, over a faulty engine part.
The faulty part is the latest in a string of problems requiring recalls by Toyota, raising doubts over whether the automaker can maintain quality standards amid booming sales.
 
The recall affects about 150,000 cars sold overseas, mainly in the United States and Canada, Toyota spokeswoman ...said. These autos were manufactured in 2001. ""
 
Had you actually read the forum, you would've noticed it is talking about Echo and Prius models, manufactured in 2001. The Yaris is new for 2007, isn't it?
 

There are so many more if anyone discovers GOOGLE......
  
 Point being, a LOT of folks routinely get 25-26 MPG City and 30-32 MPG Highway. A LOT of folks are just "dreaming".......

 
What do you consider "a LOT" ? 10, 15 people with mileage under 30 mpg ? considering the tens/hundreds of THOUSANDS of Yarii sold, in reality, your "LOT of folks" turns out to be a minor, and unfortunately unlucky, percentage.
 
Fuel Economy . Gov
http://www.fueleconomy.gov/mpg/MPG.do?action=mpgData&vehicleID=22749&browser=tru- e&details=on
 
4 out of 24 vehicles from different states registered under 30 mpg.
 
On the other side of the spectrum, 6 out of those same 24 cars registered 39+ mpg. O the injustice!
#241 of 472
Re: coasting techniques for better mpg [jcash2ds] by lucynethel
Mar 08, 2007 (3:11 pm)
Reply

Replying to: jcash2ds (Mar 08, 2007 10:09 am)

Liar, liar pants on fire!
#242 of 472
Re: coasting... [jkandell] by nippononly
Mar 08, 2007 (10:18 pm)
Reply

Replying to: jkandell (Mar 07, 2007 4:51 pm)

Yes, that makes good sense, but you should be careful not to lug the engine, which can damage it and/or the transmission over time.
 
And in the larger picture, you have to ask which will cost you more over time, the 0.05 ounce of gas that throttle blip costs you each time, or the extra bite out of your gear synchros each time you put it in gear.

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