CX-5 Fuel economy

Computer mileage vs. calculated mileage has been discussed on here before. I track mine on my phone with an app called Gas Cubby and I'm about 6% lower then the car computer. (27.4 vs 29.1).

I had wondered about this before and wondered if it could be that the car computer only tracks the gas usage when you are actually moving, and does not include the data when you are stopped but idling. Since the instantaneuos milage info goes to "---" when you are stopped, there is no data to record. Its overall milage number is a cumulation of the instantaneous data. In that case it would have you using less gas (not recording the usage during idle) for the same miles. When you do a calculation, you are basing it on all the gas you use, but over the same milage.
 
Yes, mine is 5.1% off over 15K miles, (tracked carefully on a Excel spreadsheet). This is the first car where I bothered to carefully check the MPG readout. Are most off by this significant amount?
 
I've had mine for a couple of months the first month I was getting 23 -25 for city driving, but I took it for a road trip and got 30 there and back and now getting 28-30 for the last two months for city
 
Did a 150 mile trip with 4 passengers in an 2.0 AWD CX5 today. 50 miles of the trip were done in local roads with light traffic. It was raining here and the temp was about mid 40's and I was following the speed limit. I'm happy to say that I was able to get 29.3 mpg.
 
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Did a mediocre trip to the mountains yesterday with two passengers and a CX5 full of gear; whole lot of uphill going and a whole lot of downhill returning; 27.1
 
Did a mediocre trip to the mountains yesterday with two passengers and a CX5 full of gear; whole lot of uphill going and a whole lot of downhill returning; 27.1

It would be very helpful if everyone reporting fuel consumption would provide info about their vehicle (signature). I guess 27.1 would be decent for 2.5l AWD but not so for 2.0 FWD.
 
How do you attach the fuelie to your signature?
Go to Fuelly and select your vehicle. On the right side click on SHARE YOUR MPG. Copy the code for large or small banner and paste it in your signature for this board (settings, edit signature).

Unfortunately, Fuelly still doesn't allow 2014 for model year. I sent few messages to them but no response.
 
just did a bayarea to LA, ave. speed 70-80 on 152/I5, averaged 34.7mpg, one tank trip :) not too bad

2 passengers with fair amount of stuff in the trunk
 
2014 GS AWD 2.5L AT
I've been keeping track since I bought, only have 2 fillups so far. Yes, a spreadsheet on Google docs. Nerd.
I travel about 70% highway at about 100Km/h. The rest is hilly city driving.

11.2 L/100km (21mpg), average speed 30km/h
10.7 L/100km (22mpg), average speed 36km/h

I am maintaining about 9.6 L/100km (24.5mpg) right now half way through a tank of gas, and this time I'm really really trying to get the best economy I can (Like accelerating slowly, using cruise control often, not taking cold engine short trips). Granted my 11.2 L/100km happened during a huge snow storm so, new AWD vehicle plus snow storm equals poor fuel economy :p

Also, it's been bitterly cold lately. I hope fairer weather makes the fuel economy improve.

edit: I want to add that by "accelerating slowly" I mean accelerating in such a way that you can barely feel the acceleration. It's actually best to let cruise control resume your speed as it knows how to do it best.


Nick
 
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Wow MikeM -- I am envious and bummed at the same time. I thought that maybe with your mpg numbers you were driving in a completely flat area and a lot of highway. My daily commute is short -- less than 15 minutes and there are hills and valleys and I am still struggling with getting anything close to the rated mpg. I am running my tires at 36, using high tier gas (Shell or Exxon) and driving like a grandmother and still not getting acceptable mpg.

I am also envious... and I've even tried the super conservative grandma driving approach as well. My commute is also short, about 10 mins with mostly highway driving, still can't achieve city MPG. I took mine into Mazda and they told me everything was fine. Hoping when Spring gets here, I see some change.

 
i live in san tan valley and work in tempe drive aprox 36 mils one way mosty highway and have 8500 miles on my cx5 I average 70 mph on us 60 and get 32 mpg think key is not to accelerate to fast don't know why yours is so low
 
Late entry here. Led to this thread because I'm wondering why I'm not getting the economy everyone else is. I'm getting about 17.1 - 17.5 MPG average. The Mazda dealership is looking at it but haven't found anything wrong. Admittedly, I'm 95% city driving... a friend of mine with similar driving gets higher economy. I'm using a phone app to monitor now... but I just started.
 
Consumer Reports got only 19 mpg with the 2.0L in 100% city driving. It wouldn't surprise me at all if they get 17-18 with the 2.5L.

They got only 12 from the CX-7 with the old 2.5L.
 
Consumer Reports got only 19 mpg with the 2.0L in 100% city driving. It wouldn't surprise me at all if they get 17-18 with the 2.5L.

They got only 12 from the CX-7 with the old 2.5L.

Also the AWD and more weight.
 

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