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Old 08-08-2009, 10:41 PM   #11 (permalink)
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Red XT6 - '88 Subaru XT6
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Also, your speedometer and odometer are off, but you probably knew that.

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Old 08-08-2009, 10:49 PM   #12 (permalink)
My Goal: 35 MPG All Day
 
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1NZ-FE (Year 1) - '05 Scion xA RS 2.0
Team Toyota
Last 3: 34.02 mpg (US)

1NZ-FE (Year 2) - '05 Scion xA RS 2.0
90 day: 33.32 mpg (US)

1NZ-FE (Year 3) - '05 Scion xA RS 2.0
90 day: 35.32 mpg (US)

1NZ-FE (Year 4) - '05 Scion xA RS 2.0
90 day: 34 mpg (US)

1NZ-FE (Year 5) - '05 Scion xA RS 2.0
90 day: 26.87 mpg (US)

1NZ-FE (Years 6,7,8) - '05 Scion xA RS 2.0
90 day: 28.6 mpg (US)

1NZ-FE (Years 9,10,11) - '05 Scion xA RS 2.0
90 day: 31.82 mpg (US)
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OMG**********sigh**** from this change I realize that I should have kept those over sized tires! I got great gas mileage with them ;( and the whole time I thought they were making me get worst mileage >;(
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Old 08-08-2009, 10:56 PM   #13 (permalink)
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Pasta - '96 Volkswagen Passat TDi
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It should only equate to a couple 1/10's anyway. Not enough to cry about.

So where are your air dam, wheel skirts, and belly pan? I bet no one would car jack you if you had all those on there. :P
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Old 08-08-2009, 11:01 PM   #14 (permalink)
My Goal: 35 MPG All Day
 
RandomFact314's Avatar
 
Join Date: Mar 2009
Location: South Carolina
Posts: 684

1NZ-FE (Year 1) - '05 Scion xA RS 2.0
Team Toyota
Last 3: 34.02 mpg (US)

1NZ-FE (Year 2) - '05 Scion xA RS 2.0
90 day: 33.32 mpg (US)

1NZ-FE (Year 3) - '05 Scion xA RS 2.0
90 day: 35.32 mpg (US)

1NZ-FE (Year 4) - '05 Scion xA RS 2.0
90 day: 34 mpg (US)

1NZ-FE (Year 5) - '05 Scion xA RS 2.0
90 day: 26.87 mpg (US)

1NZ-FE (Years 6,7,8) - '05 Scion xA RS 2.0
90 day: 28.6 mpg (US)

1NZ-FE (Years 9,10,11) - '05 Scion xA RS 2.0
90 day: 31.82 mpg (US)
Thanks: 39
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Quote:
Originally Posted by Christ View Post
It should only equate to a couple 1/10's anyway. Not enough to cry about.

So where are your air dam, wheel skirts, and belly pan? I bet no one would car jack you if you had all those on there. :P
Nothing to cry about? Lol I was beating my goals and I didn't even know it... AND the LRR tires I bought that I THOUGHT was giving me +1 mpg compared to the old tires actually get -1mpg.....

Don't get me wrong, I'm happy my 90 day went from 30.59 to 33 but erg... that just means I'm not going to be able to get those reading again unless I do something crazy like the airdam, wheel skirts, and belly pan your talking about
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Old 08-08-2009, 11:05 PM   #15 (permalink)
Moderate your Moderation.
 
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Pasta - '96 Volkswagen Passat TDi
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Less post - more build thread. MOAR NAO!!!
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Old 08-08-2009, 11:14 PM   #16 (permalink)
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1999 Saturn SW2 - '99 Saturn SW2 Wagon
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RandomFact314 -

Beg, borrow, or rent a GPS to do an odometer correction. I borrowed my wife's :

http://ecomodder.com/forum/showthrea...ires-2642.html

CarloSW2
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Old 08-08-2009, 11:24 PM   #17 (permalink)
My Goal: 35 MPG All Day
 
RandomFact314's Avatar
 
Join Date: Mar 2009
Location: South Carolina
Posts: 684

1NZ-FE (Year 1) - '05 Scion xA RS 2.0
Team Toyota
Last 3: 34.02 mpg (US)

1NZ-FE (Year 2) - '05 Scion xA RS 2.0
90 day: 33.32 mpg (US)

1NZ-FE (Year 3) - '05 Scion xA RS 2.0
90 day: 35.32 mpg (US)

1NZ-FE (Year 4) - '05 Scion xA RS 2.0
90 day: 34 mpg (US)

1NZ-FE (Year 5) - '05 Scion xA RS 2.0
90 day: 26.87 mpg (US)

1NZ-FE (Years 6,7,8) - '05 Scion xA RS 2.0
90 day: 28.6 mpg (US)

1NZ-FE (Years 9,10,11) - '05 Scion xA RS 2.0
90 day: 31.82 mpg (US)
Thanks: 39
Thanked 35 Times in 24 Posts
Quote:
Originally Posted by cfg83 View Post
RandomFact314 -

Beg, borrow, or rent a GPS to do an odometer correction. I borrowed my wife's :

http://ecomodder.com/forum/showthrea...ires-2642.html

CarloSW2
I have a gps but I already have gotten rid of those tires
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Old 08-08-2009, 11:30 PM   #18 (permalink)
Moderate your Moderation.
 
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Pasta - '96 Volkswagen Passat TDi
90 day: 45.22 mpg (US)
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Still a good idea to check and make sure, since the margin of error for some OEM's is up to 5% @ 60 MPH, or 3 MPH correction.
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Old 08-08-2009, 11:44 PM   #19 (permalink)
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1999 Saturn SW2 - '99 Saturn SW2 Wagon
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RandomFact314 -

Quote:
Originally Posted by RandomFact314 View Post
I have a gps but I already have gotten rid of those tires
Hrmmmmm, I apologize for not reading more closely. Even with the tires you have on now, I think you should do an odometer correction test to see if your odo is accurate.

If I were you I would :

1 - Do the GPS odometer correction test on your current setup. Let's say for the point of example that your odometer is incorrect by -1% in your disfavor.

2 - Instead of +10%, make it +9% to be "conservative" in your estimate (because you can't prove it with test data). My wife's GPS shows greater than 2.5%, but I only give myself a 2% credit. I do this to insure that my claimed benefits are well within the range of error.

3 - +9% + -1% = +8% Correction.

4 - Go over your fuel logs and add the data in. I put tons of info my "details" section of my fuel log :

Quote:
Ignore high/low MPG, only look at AVERAGE MPG (Chevron;91 Octane;#1). 181168 miles on odometer. Tires are larger, so odometer is reading 2% less, hence +2% correction: 248.7 * 1.02 = 253.674
But that's just me. YYMV. (Your "You" May Vary)

CarloSW2

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Last edited by cfg83; 08-09-2009 at 04:46 AM..
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