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Old 06-02-2009, 02:04 AM   #8 (permalink)
cfg83
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Join Date: Dec 2007
Location: Southern California
Posts: 5,864

1999 Saturn SW2 - '99 Saturn SW2 Wagon
Team Saturn
90 day: 40.49 mpg (US)
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Hello -

I just did another GPS correction test :

Code:
              Car Odometer    GPS       GPS/ODO    % Correction
2007/06/19    19.00           19.6      1.0310     +3.1% (after purchased)
2007/06/19    36.15           37.2      1.0290     +2.9%
2007/12/01    30.40           31.2      1.0263     +2.6% (6 months later)
2007/12/05    31.40           32.3      1.0286     +2.9%
2008/10/08    34.1            35.1      1.0293     +2.9% (16 months later)
2008/10/09    35.6            36.5      1.0253     +2.5%
2009/06/01    29.2            30.0      1.0273     +2.7% (24 months later)
2009/06/01    44.0            45.2      1.0272     +2.7%
It's still pretty much dead-on. My intuition was predicting it to decrease, but maybe that will happen in due course.

I just got the tires rotated and they didn't say there were any wear problems. When I get the rotation I drop the PSI to 42 to avoid lectures, and fill 'em back up to 50 PSI afterwards.

Me still happy, .

CarloSW2
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