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01-23-2010, 02:45 PM | #1 |
Drives: yaris Join Date: Jan 2010
Location: at home
Posts: 2
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decrease in mileage
I have a 2007 4 door Yaris. I always got 40-42 MPG. Mileage has dropped to 35-36 MPG in the last few months. Tires are properly inflated, oil is changed regularly, air filter and plugs were recently changed with no improvement.
Any suggestions? Thanks. |
01-23-2010, 03:59 PM | #2 |
Half a Bubble Off Plumb
Drives: 2009 Yaris Sedan Join Date: Mar 2009
Location: Bristol, Tennessee, USA
Posts: 1,593
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Aside from the usual observations about winter gas, running the defroster which turns on the air conditioning compressor and so forth, consider checking your wheel alignment. A slight bit of tire scrubbing really eats gas. Also, an oxygen sensor that's gradually going out can cause a drop in mileage before it gets bad enough to trigger a "Check Engine" light. A 2007 is pretty new for that.
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01-23-2010, 09:44 PM | #3 |
Drives: 2008 Yaris Liftback (Sprocket) Join Date: Oct 2008
Location: San Antonio, Texas!
Posts: 2,799
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01-23-2010, 10:08 PM | #4 |
Drives: yaris Join Date: Jan 2010
Location: at home
Posts: 2
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The decline in mileage began before the weather changed and I've been through 2 previous winters. My driving habits have been pretty consistent. Will look into the alignment. Thanks.
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01-24-2010, 07:05 AM | #5 |
Drives: 03 Echo, 04 Scion xA, 02 Range Join Date: Dec 2008
Location: Madison CT
Posts: 16
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Have you tried cleaning the MAF sensor located on the air intake tube coming off the filter box? I remove mine and blow it off with an electronic parts cleaner spray every time I change the oil. There's a DYI here or on the Scion Life forum. They are quite delicate inside.
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01-24-2010, 03:39 PM | #6 |
Drives: 08 Sedan Join Date: Oct 2008
Location: Tyler, TX
Posts: 899
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01-24-2010, 06:15 PM | #7 |
Drives: yaris 1.0 petrol (Y2K model) Join Date: Jan 2010
Location: Dublin, Ireland
Posts: 18
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Check your plugs & air filter. I've noticed a dramatic increase in economy since the service I performed the other day. Best 60 quid I ever spent on parts. I managed 55mpg through the city to my parents house on Friday.
I think US gallons are different though, do you guys understand liters / 100km? I can test that way if needed. That's what we use in Ireland, but the wife likes MPG as she is old school |
01-24-2010, 06:16 PM | #8 |
Drives: yaris 1.0 petrol (Y2K model) Join Date: Jan 2010
Location: Dublin, Ireland
Posts: 18
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01-25-2010, 01:04 PM | #9 |
Drives: 08 Sedan Join Date: Oct 2008
Location: Tyler, TX
Posts: 899
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01-25-2010, 01:16 PM | #10 |
Drives: Black Vitz Liftback Join Date: Dec 2008
Location: Salt Lake City
Posts: 238
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Check your brakes-you could have either a front caliper or rear shoe dragging a little.
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01-25-2010, 03:20 PM | #11 |
Drives: yaris 1.0 petrol (Y2K model) Join Date: Jan 2010
Location: Dublin, Ireland
Posts: 18
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01-25-2010, 08:25 PM | #12 |
Drives: 08 Sedan Join Date: Oct 2008
Location: Tyler, TX
Posts: 899
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01-25-2010, 08:47 PM | #13 |
Drives: Blk 3door Join Date: Jan 2009
Location: Ohio
Posts: 22
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I get kinda sick and tired hearing about people complain about poor gas mileage. There is stuff all over the internet about it so if you can't look that up I'm not sure there's much hope for you. Also, quit going over the things this guy already said he did... checking the same things over and over is useless.
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01-26-2010, 05:16 AM | #14 |
Drives: yaris 1.0 petrol (Y2K model) Join Date: Jan 2010
Location: Dublin, Ireland
Posts: 18
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Your having a laugh mate :
http://en.wikipedia.org/wiki/Emission_standard The euro emissions laws are far more stringent than the US. We Europeans invented fuel efficiency you know :-) http://www.wisegeek.com/which-are-th...cient-cars.htm This is one from 2007, but nuffink has changed since then. http://www.msnbc.msn.com/id/17344368/ What I was alluding to was the Irish weather, not winter fuel. In Europe, we get the same fuel all year long as the quality is actually better. Google it. The Yaris is not considered a particularly fuel efficient vehicle over here. It is only average for a European car. Less than average in fact. I don't understand where people are getting cranky here by the way. It's only a bit of fun |
01-26-2010, 11:55 AM | #15 | |
Audio Junky
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Quote:
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01-26-2010, 12:02 PM | #16 | |
Drives: yaris 1.0 petrol (Y2K model) Join Date: Jan 2010
Location: Dublin, Ireland
Posts: 18
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Quote:
My brother has just gotten enaged, and he wants to have his stag in Vegas, so I have an excuse to gop to the USA for the firest time in my life. Really looking forward to it, I'll see about extending the trip a little too. The wife won't be too happy be, meh. |
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01-26-2010, 01:17 PM | #17 | |
Drives: 08 Sedan Join Date: Oct 2008
Location: Tyler, TX
Posts: 899
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Quote:
But then in this same quote you go back an repeat your statement about the gas.......You been sniffing your gas tank, mate? |
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01-26-2010, 01:36 PM | #18 | |
Drives: yaris 1.0 petrol (Y2K model) Join Date: Jan 2010
Location: Dublin, Ireland
Posts: 18
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Quote:
1. 95 unleaded 2. 98 unleaded 3. Diesel (which is excellent for economy, and very popular) 4. LPG (liquid petroleum gas) The choices stay the same whether it is winter or summer, the higher octane fuels work just as well in summer as in winter. What we do is choose different oils mate, depending on what climate you come from, as the temps in the EU vary wildly. -38C in Poland in January, but this winter was unusually harsh for everyone. Diesel is the best choice, and I heard it has a bad rap in the USA, but we don't use agricultural fuel in diesel cars, in fact, it will destroy the engines. Diesel gets 80mpg in modern vehicles. Don't think they sell in the USA though. Not sure.... google BMW efficient dynamics for a good example. |
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