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Mazda CX-9 Real World MPG

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

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


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#97 of 140
Re: The problem with the MPG [hot4amy] by ceric
May 12, 2008 (9:12 am)
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Replying to: hot4amy (May 12, 2008 7:52 am)

I think Toyota/Honda would probably have given you better MPG, but not the Arcadia. Go read their forums. You will see that Arcadia's 500lb extra weight is something to carry around.
All I can say is that go gentle on the 1st gear, and your CX-9 MPG will be fine.
I have been averaging 16+mpg in SF BayArea traffic. Zero problems after 5000 miles.
#98 of 140
Re: The problem with the MPG [hot4amy] by vinsuz
May 13, 2008 (9:11 am)
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Replying to: hot4amy (May 12, 2008 7:52 am)

What's the terrain where you live? I live in Western Pa with a lot of hills, but now that I've surpassed 2k miles, my '08 GT is getting 16+ consistently (50/50), and I'm sort of a lead foot and drive 70+ mph on the interstates. I don't know the validity of the supposed "break-in period", but I have noticed a slight improvement.
#99 of 140
Re: 2008 GT FWD MPG [btm2518] by ezye
Jul 01, 2008 (12:03 pm)
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Replying to: btm2518 (Apr 20, 2008 12:09 pm)

Just over 1000 miles and I've yet to get more than 13 mpg out of this thing. I really like this car but having to fill up once a week is ridiculous. At first, I thought it was my wife's driving habits but I had the car for a week while she was out of town and the best I could do was about 13 mpg and I'm a very conservative driver (no ac, slow starts/stops, etc.). If I knew my mpg was going to be this bad I would've passed on this vehicle. Needless to say, but I'll say it anyway, I'm very dissappointed.
#100 of 140
Chat night by pf_flyer HOST
Jul 01, 2008 (3:41 pm)
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Tuesday means Mazda chat night! The chat opens at 8:45 pm ET and runs until 10 pm ET. I hope you're able to join us tonight to meet and greet with your fellow CarSpace members!
See you there!
#101 of 140
Re: very pleased with mileage [dorenescar] by badself
Jul 01, 2008 (9:20 pm)
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Replying to: dorenescar (Apr 14, 2008 10:11 pm)

When I got mine ('08 GT), the vehicle was California emissions and I was very worried about (1) the vehicle bogging down more than a non-California car, and (2) a hit in fuel efficiency because it's California. I bought in Maryland, but the dealer bordered a green state (PA) so they order all theirs California in order to do dealer trades. I actually drove two non-California cars before buying mine and I could not detect a difference in performance, so I bought this California emission CX-9 and after two tankfuls if 50/50 driving, I'm just breaking 20.0 mpg, so all in all, California or no California, I guess I'm doing better than I expected, and definitely better than some. Didn't set out looking for the particular emission standard, it just happened to be the dealer with the best price (by a good margin). Hard to understand how folks driving conservatively are in the 13's and 14's, not that I don't believe them. Just glad not my experience so far.
#102 of 140
Re: very pleased with mileage [badself] by ceric
Jul 02, 2008 (2:20 pm)
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Replying to: badself (Jul 01, 2008 9:20 pm)

As I posted before, CX-9 has very short 1st gear (4.15?). It revs very high when you hit the gas starting off. This, of course, gives you the "zoom-zoom" feel but it costs you gas. Also, cruising at 40 mph, the CX-9 holds onto the 5th gear instead of 6th. I believe the 6th can handle it very well (try the M-mode). I believe Mazda programs the transmission to be more responsive while costing you MPG a bit.
Besides, CX-9 is heavy (AWD at 4600lb when loaded with options). 3.7L engine eats more gas than 3.5L/3.6L that most competitors use (Pilot, Highlander).
 
My CX-9 (after 6000 miles) has been doing 15.5 to 16.5mpg in SF bay area (metropolitan driving). I cruise highway at 75mph, and follow traffic vigorously.
We have the usual traffic jams like everywhere when commuting.
 
I don't see how people can get 13-14mpg normally.
Maybe,
- check tire pressure
- check alignment
- check air filter for blockage or dirts
#103 of 140
Re: 2008 GT FWD MPG [ezye] by nxs138
Jul 03, 2008 (8:03 pm)
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Replying to: ezye (Jul 01, 2008 12:03 pm)

We get about 16 in a mix of city and highway, and about 20 on the highway with our AWD GT. There might be something wrong if you're getting such low mileage (the lowest we got was a bit over 15 in the dead of winter), unless you're doing all city driving, then I can believe getting about 13.
 
The CX-9 is not the only CUV that sucks gas in city driving...I've read similar reports about the Acadia, Highlander, Pilot, and even minivans (my colleague doesn't get better than 20 mpg on his Odyssee). Stop and go driving kills mpg on these puppies, no question about it.
 
We're not too impressed either, even though we knew mileage wouldn't be too good, you always kinda hope that you'll do better. And when you don't, it sucks. Oh well....
#104 of 140
MPG different with towing package? by gogators93
Jul 04, 2008 (8:54 am)
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I know there is a differenct in AWD vs FWD but what about if you get the towing package? We just bough a new 2008 CX-9 GT two days ago with a towing package to tow our sportbikes up to the mountains and to do track days. We haven't filled up the tank yet so I have no idea what mileage we are getting yet. But the towing package does include a special ECU program. Just wondering what the they do the computer and if it affects gas mileage?
#105 of 140
Re: MPG different with towing package? [gogators93] by ceric
Jul 05, 2008 (12:29 am)
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Replying to: gogators93 (Jul 04, 2008 8:54 am)

From other forum, people with tow package have reported similar MPG. Tow packages includes larger tranny cooler and higher volume of coolant (bigger radiator) and ECU programming (and of course, the 25-28lb hitch). The ECU probably only differs when the load is high (such as towing).
 
One indicator I use regularly is that when the fuel indicator at the 1/2 mark, if I get 150miles on the trip meter, I will get about 16mpg at the end.
#106 of 140
Re: MPG different with towing package? [gogators93] by skc7
Jul 05, 2008 (5:20 am)
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Replying to: gogators93 (Jul 04, 2008 8:54 am)

I also have a 2008 AWD GT with tow package, but haven't towed anything yet. I did not necessarily want the tow package, but the rest of the options, color, etc., was what I wanted. To date with 4700 miles I get 15-16 mpg with all city driving, 20-23 mpg with all highway driving, and 18-19 mpg with about a 50/50 mix of city and highway. That's about what the EPA sticker states. I'm not disappointed as this is probably about the nicest driving CUV as there is and I've driven the MDX. Acadia, Veracruz, and others. Nothing came as close as the CX-9 to the sporty handling and steering that I was accustom to and I was driving a G35 Infiniti which is probably one of the nicest driving sport sedans as there is on the road.

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