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 Post subject: Trip Computer Avg Mpg
PostPosted: Sun Jun 17, 2018 2:20 am 
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Joined: Thu Apr 24, 2014 3:45 am
Posts: 92
Location: Easton Ct
For about the last 6 months i have noticed the avg MPG drop from about 19.5 to 16.5. what was strange is that the drop happened suddenly and it didn't seem like the range per tank of gas had changed. So the last two fill ups i checked the mileage the old fashion way by dividing the miles by the amount of gallons and i found the car is really getting 21.5 - 22.0 mpg not the 16.5 as the trip computer states. So my question is how dose the trip computer calculate the MPG ? Is there some sort of a fuel flow meter ? is there anyway to calibrate this???


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PostPosted: Fri Jun 29, 2018 11:19 am 
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Joined: Thu Nov 29, 2012 4:32 pm
Posts: 1723
Location: East Central Florida
This is interesting. My FSM doesn't cover the V6 cars as it's a 2011 book, I'll have to browse & see how the V8's do it. Should be similar I would think...

Eric

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System Manager and your tourguide for the day. Caprice Alumni, former owner of a 2011 Caprice 9C3 with a Rotofab CAI and front radiator cover, 3.45 LSD Camaro rear diff, Chris Henry performance tune, G8 GT 18" Enkei rims w/Holden lions, custom SLP axle-back muffler set with tips, Holden WM Caprice factory spoiler, Holden SSV leather steering wheel and leather shift knob, Whelen Alpha-12Q airhorn amp. G8 GT rear seat swap, AVS Ventshades.


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PostPosted: Sat Jun 30, 2018 2:59 am 
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Joined: Thu Apr 24, 2014 3:45 am
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Location: Easton Ct
cool appreciate it


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