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Mazda CX-9 Real World MPG

140 messages,  Last post on Feb 13, 2009 at 11:14 AM

You are in the Mazda CX-9 Forum. Your Hosts are steve_ & tidester

What is this discussion about? Mazda CX-9, SUV


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#116 of 140
Re: use of ScanGaugeII [ceric] by nxs138
Aug 05, 2008 (2:07 pm)
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Replying to: ceric (Aug 05, 2008 9:13 am)

Do you have to calibrate the scangauge before use, or is it ready to go out of the box?
#117 of 140
Re: use of ScanGaugeII [nxs138] by ceric
Aug 05, 2008 (2:22 pm)
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Replying to: nxs138 (Aug 05, 2008 2:07 pm)

You need to set engine displacement (such as 3.7L, 6-cylinders, etc.) out of box.
Then, you need to adjust the error of fuel consumption once.
The procedure is to
- fill up at the pump
- drive at least 1/2 tank (I did 3/5)
- check fuel consumed in ScanGaugeII (say 11.4)
- fill up again at the same pump (click-off/top-off), take down reading at the pump
(say, 11.7)
- proceed to adjust the error in ScanGauge (in this case 3%).
From then on, the fuel consumption should be very accurate.
OBDII monitors fuel consumption by injection counts. Therefore, a small error
might be present due to other factors.
 
It is important to pump gas at the same station and the same pump to eliminate uncontrollable factors. Let it click off 2 times to be sure.
#118 of 140
trip mpg by msuvet
Aug 05, 2008 (3:42 pm)
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We took a 800 total mile trip in July.
 
We had a car-top carrier (pushing the 100# total roof-rail capacity), 2 people + 2 big dogs (~ 480# live weight total), plus some additional cargo in the vehicle where we could fit it.
 
1/2 the trip was freeway, going 75 mph. Got about 21 mpg for that leg.
 
The other half was non-freeway highway, going about 65 mph. But more passing on 2-lane roads there with often heavy acceleration (it was GREAT for passing). Got about 22-23 mph then.
 
AC going for 99% of trip.
 
That was better than I was expecting considering the carrier and total cargo weight.
 
I'm getting about 17-18 mpg in the car driving solo, mixed 65%35% highway/city driving. That improved from closer to 15-16 mpg earlier in the winter/spring. I also changed the oil to synthetic at 5000 miles (right before the trip).
#119 of 140
ScanGaugeII installation pictures by ceric
Aug 05, 2008 (10:54 pm)
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Please see my CarSpace album. I took them with my lousy Moto Razr cell phone camera. My digital camera is broken. I am shopping for one.
#121 of 140
2009 AWD MPG by inliner
Sep 11, 2008 (9:53 am)
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I have got 850 km (530 miles) on the odometer of my 2009 GTX AWD. The trip computer (thanks Mazda for this improvement in the 2009 model!) shows that the average MPG is 19.8. City/highway - 40% / 60%. A/C is always on. Average number of passengers: 2. Terrain: flat.
 
The car is still under 1000 km so I don't drive it too fast - max. 100 km/h (60 MPH). I am currently quite happy with this MPG, it's similar to what I get on the other car - a toyota camry 1998 V6 3.0L.
#122 of 140
Re: 2009 AWD MPG [inliner] by pirogue
Oct 01, 2008 (7:45 am)
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Replying to: inliner (Sep 11, 2008 9:53 am)

we just bought a 2008 touring model with trip odometer A/B???? Did some come with it and some with out it???
 
#123 of 140
by pirogue
Oct 01, 2008 (7:56 am)
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here it is
 
http://www.carspace.com/pirogue/Albums/pirogue%27s%20Album/Oct01_0002.jpg/page/p- hoto.html#pic
 
not sure how to use url function to make address smaller.
#124 of 140
Re: 2009 AWD MPG [pirogue] by maltb
Oct 01, 2008 (7:56 am)
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Replying to: pirogue (Oct 01, 2008 7:45 am)

I think you are confusing the trip odometer with the trip computer in the 2009 CX-9.
#125 of 140
by pirogue
Oct 01, 2008 (7:59 am)
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Sorry, I was happy when I seen the trip odometer and thought I has a special vehicle. I've been confused all this time.

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