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Old 10-30-2008, 09:26 PM   #19
roadrunner
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Originally Posted by BailOut View Post
Between all of us on this forum that have ScanGauges and over thousands of miles of testing we have each found the exact opposite of their results with the a/c usage. Without fail we can find little to no effect with the windows down at any speed but huge efficiency hits with the a/c on at any speed.

I too agree with Bailout

Last edited by roadrunner; 11-01-2008 at 08:35 AM.
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Old 10-30-2008, 10:20 PM   #20
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Originally Posted by b_hickman11 View Post
Could be several reasons why you're not getting the mpgs you should be. I have 2 Yaris's and I have never got less than 36 mpg. The highest I have ever got was 44 mpg. I do not use any hyper techs. and I use the AC all the time.
Hmm. How do you get your mpg. Do you take the amount of gas you fill your tank up to and take that number and divide it into the amount of miles you drove after your last fill up. I think that is the only accurate way to get your mpg average per fillup.
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Old 10-31-2008, 11:40 AM   #21
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They get pretty high numbers on all the vehicles they test.
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Old 10-31-2008, 12:03 PM   #22
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Originally Posted by YarisSedan View Post
Hmm. How do you get your mpg. Do you take the amount of gas you fill your tank up to and take that number and divide it into the amount of miles you drove after your last fill up. I think that is the only accurate way to get your mpg average per fillup.

Yes
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Old 10-31-2008, 01:38 PM   #23
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Originally Posted by Reddog99 View Post
Even when "calibrated" you should take the absolute readings of the Scangage with a grain of salt. I recently took a trip from So. Cal. to New Mexico and found that my back-and-forth-to-work calibration was seriously out of wack for a cross-country trip. I finally gave up trying to correct the calibration while on the trip and the accuracy returned after I got back home.

The best reliable way to calculate fuel mileage is at fill-up time. There are too many uncontrollable variables to rely on instantaneous readouts.
since the second tank I don't recall my SGII being more than .2 gallons off when I went to fill up. and I've logged almost 20,000 miles with it
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Old 10-31-2008, 03:59 PM   #24
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