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Old 09-16-2021, 11:02 AM   #1
ss1992
 
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Drives: 2007 Toyota Yaris Base
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Cool Just bought a used 2007 Yaris and I am impressed with the MPG

First post on the site.

I just bought a used 2007 yaris sedan base with the Automatic tranny 1.5L. Got it for $5000 with 94k miles.

I decided to do a highway mpg test yesterday and determined it was approximately 47 mpg on the highway.

I was able to determine that by looking at the top bar, which went down when I finally reached 68 miles on the trip meter.

Formula used:

Sets: 68 miles (M) / 8 fuel bars (B) / 11.4 tank capacity (TC)

68(M) * 8(B) = 544 mi <--- average per tank

544 mi / 11(TC) = 47.71929824561404

Rounded to 47.7 MPG.

Perhaps my math is flawed, idk. However, I believe it to be pretty accurate. This car gets much better gas mileage than my 2013 Hyundai Accent does anyway, so, that's already sufficient for me.

I am going to let it get down to 1 bar to see approx how many miles it gets on a whole tank.

Driving habits:

Max speed is pretty much 65 mph. Almost all of the miles I drive are interstate or at hwy speeds. I live in the country and very little of the way home is below 60 mph speed limit.

I also never slam on the brakes or brake hard. I always allow friction to slow me down and then use the brakes to ease into either a full stop or traffic slow down.
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Old 09-16-2021, 11:34 AM   #2
WeeYari
 
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Sorry to burst your bubble.

The bars on the gauge are not equal 8ths. The first bar can be approximately double that of the last bar.

The only way to truly get accurate numbers is to
- fill up to first click of the pump
- record odo reading
- do your driving
- fill up again to first click
- record your odo reading and amount of fuel pumped in
- calculate distance travelled on fuel consumed
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Old 09-16-2021, 11:40 AM   #3
bronsin
 
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I have to agree with we Jari. The only way to accurately determine mileage is to divide miles traveled by gallons pumped at Fillup Time


But hey you got a great car there!
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Old 09-16-2021, 02:17 PM   #4
ss1992
 
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Quote:
Originally Posted by WeeYari View Post
Sorry to burst your bubble.

The bars on the gauge are not equal 8ths. The first bar can be approximately double that of the last bar.
I wonder why they'd have such a big discrepancy between the two?
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Old 09-16-2021, 06:04 PM   #5
bronsin
 
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Quote:
Originally Posted by ss1992 View Post
I wonder why they'd have such a big discrepancy between the two?
Good luck probably has to do with the irregular shape of the gas tank
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