MPG keeps getting better and better

MikeM.

Member
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2013 Mazda CX-5 Touring AWD 2.0L
Before I purchase my CX-5 I knew it had the best EPA MPG numbers in it's class but I didn't think the efficiency would beat the generally very optimistic EPA estimates. But the fuel receipts don't lie and I have every one from the last 9,000+ miles and am very happy with the miserly nature of this engine and transmission (even though I have AWD and 6 speed auto). I don't have to fuel too often and, when I do, the pump still often surprises me with how soon it shuts off. When I purchased the CX-5 late last year, a cold and rainy Pacific Northwest winter was ready to settle in. I was impressed with the winter MPG numbers but now that the weather is warming, it just keeps getting better.

Yesterday I fuelled up with 506 miles on the trip odometer and it only took 13.5 gallons which calculates to 37.5 mpg (TC reported 37.2 mpg), very good for a roomy AWD vehicle, especially considering much of the tank was burned driving through Mountain passes (up to 5200') with the RPM's often in the 3,000-4,000 rpm range on the steeper grades. At one point near the top of the pass the eastbound lane opens into a passing lane. I had been following a Honda CR-V who started to pass a slower moving economy car in front. The CR-V took the passing lane decisively and I thought we were both going pass but the CR-V was out of breath in the thinner air. The CX-5 was humming along at 3,000 rpm's and had power to spare but the breathless CR-V took forever to make the pass. This thing is a blast to let the motor spin while driving in the mountains (if only you don't get too many pokey cars in front of you).

The number of big, unwieldy SUV's and pickups on the road is shocking and they all get in your way as they drive very conservatively, probably trying too eek out 16 MPG instead of their usual 14-15 MPG. They all slow to ridiculously slow speeds as their drivers concentrate to force all that weight to careen around the sharper corners in a most unsatisfying manner. In comparison the CX-5 carves them up like child's play.

Now that the weather is warming, who else is happy with their CX-5 MPG and performance on twisty roads?
 
Am I the only one that thinks MikeM is under Mazda's payroll?
LOL!

I'm just regretting not buying Mazda stock last fall when I discovered what a great car the CX-5 was. Mazda is now profitable (thanks in large part to the worldwide success of the CX-5) and their stock price has tripled in less than a year.

But, no, I don't work for (or have any financial stake) in Mazda.
 
I've noticed the same thing Mike. Up to the 5k mile point I was consistently getting around 29-30 mpg in town (where most of my driving is done. After I did the first service @5k miles (six months) using Mazda super oil, I noticed it seemed to be doing even better mileage-wise. I hadn't done a mileage calculation for a while, so at the last fill up (with the dash readout showing 31.2 after being reset the fillup before) I did the math after "stuffing" the tank and if figured 32.11mpg. And virtually all of it in town. It's gotten so that I only have to fill this damn thing every 10-14 days and that's ususally only a little over half tank down!
 
Am I the only one that thinks MikeM is under Mazda's payroll?

While it may be fair for you to assume that based on the praise, I think we should not hijack the post. For all little that I know, I see MikeM with 637 posts as a very valuable contributor to this forum.
I think most of us here are owning or in the process of buying a CX 5. We wouldn't have the time to navigate on forums just for the sake of it. He is not the first to praise his car and won't be the last.
I observed very good fuel mileage in my first week as well. I am also very impressed with several elements with the car. There are things that I am not sure about as well but I am still trying to learn the trasmission and the Mazda way before I go out and ask for questions...but the mileage shown by my car is by far one of the best aspects.
I do love the car so far and I am nowhere near a Mazda payroll or any car dealership payroll. I am just a simple member of this forum, just like you and MikeM.
 
I agree. My numbers confirm it. My commute is 9 miles, rarely do I get over 50mph, computer avg speed is 21mph, and traffic is always heavy northern Nj congestion. In NJ it is unlawful to pump your own gas, so I have to wrestle some fuelers for the nozzle, so I can top off the tank for consistent fuelings. I can usually squeeze an extra gallon into it after the auto shutoff. On my last tank I got around 28mpg, in what I would call 75-80% city/dense suburban driving. I am very easy on the gas pedal and brakes. I am dying to get this thing on the highway to see what highway number's look like.
 
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Thanks for the report on great mpg numbers! I've had mine about 3 weeks and filled it twice. I got 8.4 and 8.3l/100km which I think is pretty good for a brand new car of this size. That's somewhere in the 28-29mpg range. That was all short trips, commuting etc with a mix of city/highway. The engine and trans. just seems to effortlessly move the car along and it's easy to keep the revs below 2k most of the time when not on the highway. The 2.5 engine has great low end torque. It's good to hear that it should get even better. For comparison, my 06 Forester 5 speed would average 10.3L/100km or about 23mpg. So I am looking at 20% less fuel for a larger, much nicer vehicle! I'm happy with that!
 
Mike,
Just to add from your post. I recently went to Yosemite National Park. There were lot of turns, uphills and downhills. I think the highest point was like 8000 ft. My CX5 felt confident, had more than enough power (2014 model ). I was really happy the way it drove. I would say if my old RX8 felt 100% in the handling area, the CX5 would be around 80 to 90%. Not bad for a CUV. Fuel economy was around 32 mpg both calculated and in the trip computer. Not bad in my view.
 
One reason the mileage may be getting better as the weather warms is that the 'winter' gas formulations are being phased out, reducing the percentage of efficiency-sucking ethanol. But those figures are very promising to be sure.

I can't really compare, since we haven't had our CX-5 (FWD, 2.5L) long enough to even fill up once :). So far the TC is showing 25 or so, in mostly town driving. But that's roughly EPA and the car is brand new and not run-in, so should get better. Still, it's far better than our old Odyssey minivan, even now!
 
One reason the mileage may be getting better as the weather warms is that the 'winter' gas formulations are being phased out, reducing the percentage of efficiency-sucking ethanol. But those figures are very promising to be sure.

To be honest, that last tank was my best ever and I'm sure I won't be able to achieve often. There was very little brake usage and I had a nice 10 mph tailwind for about 1/5 of the tank and the only headwinds were below 3-5 mph. What surprised me was how often I could let the engine rev into the 3-4000 rpm range whenever accelerating and/or climbing grades at altitude. I think this didn't kill the MPG because for every acceleration or hill climb there was a corresponding descent or coast (not brake). The steady state MPG compared to the competition is good (not great) but where the CX-5 gets it's big advantage is in very efficient coasting and also while stopped at idle. The CX-5 doesn't coast nearly as far as my Volvo sedan (that thing just rolls and rolls) but it burns much less fuel while coasting.

If I had to summarize my MPG observations over 8 months of ownership I would say it doesn't pay to "baby" the accelerator in a high gear when you need to accelerate or climb a hill. Just use normal driving moderation, get to your new speed quickly, then let it drop into a high gear and putt along at your desired speed. Also, the faster you go (above 50 mph, the more fuel you will burn). My last tank had a lot of 50 mph driving (often because I was held up by gigantic suv's/trucks presumably trying to save fuel).

One comment on summer/winter blend. Yes, summer blends return better MPG (in addition to the better efficiency from warmer weather). But the reason the summer blend returns better MPG is not due to less alcohol. As far as I can tell it is almost universal that all US gasoline (winter and summer) has the maximum 10% allowed by federal law (unless bought at a station that specifically advertises "ethanol free"). The market price of alcohol is less than pure gasoline so it helps bring the cost down and alcohol is a cost effective way to increase the octane of fuel.

Summer blends return better MPG because the government mandates that fuel has a lower vapor pressure in the summer. This forces refiners to more expensive formulations, which have more embodied energy, to meet the vapor pressure rules while still producing the desired octane grades. If it were not for the vapor pressure limits, all gasoline would be formulated more similar to the poorer winter blends. However, here in Washington State, the sale of winter fuel is legal year round. Whether we get the more expensive summer blends anyway due to refinery logistics, I do not know.

Considering the relatively high percentage of the typical consumers income that is spent on fuel energy, it's surprising how little most of us actually know about what it is exactly that we are consuming (myself included).
 
I've noticed the same thing Mike. Up to the 5k mile point I was consistently getting around 29-30 mpg in town (where most of my driving is done. After I did the first service @5k miles (six months) using Mazda super oil, I noticed it seemed to be doing even better mileage-wise.

Yes, I forgot to mention. I am also using the Mazda Moly "super" oil. Because I switched oil in the middle of winter it's difficult to say if there was an improvement in MPG but Mazda say's there is and of course I believe them, it's simply a matter of quantifying that difference. But I plan to keep using the Moly so I'll probably not be able to directly compare.

Good comments everyone!
 
Mike what gas are you using? I've been using QT gas for the past year. 2 weeks ago I was nearly running empty and stopped at the nearest gas station- Chevron. Filled up with their 87 octane. There was a noticeable difference with the Chevron. Recently filled and switched back to QT gas and it wasn't quite as zippy.
 
Mike what gas are you using? I've been using QT gas for the past year. 2 weeks ago I was nearly running empty and stopped at the nearest gas station- Chevron. Filled up with their 87 octane. There was a noticeable difference with the Chevron. Recently filled and switched back to QT gas and it wasn't quite as zippy.

I agree, when your tank is filled from nearly empty you can sometimes notice a fuel quality difference (either in MPG or subtle differences in the smoothness and response of the engine). When the tank is still almost half full when refueling the dilution of the new fuel makes differences much less noticeable.

The last tank (and the last 4 of 5 tanks) was unbranded 87 octane with which I've been getting consistently good results. I think it's a good strategy to stick with a station that you've been getting good results from (but switch as soon as you notice less than ideal results). You may find the station that was not so good last month is now excellent. But convenience plays into it also since I refuse to travel out of my way simply to fuel.BTW, my complete fuelling history is available via my Fuelly sig (only visible on the first post on each page).
 
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especially considering much of the tank was burned driving through Mountain passes (up to 5200') with the RPM's often in the 3,000-4,000 rpm range on the steeper grades.

There's just something about these cars that they really love that type of driving for good mileage. I would have thought with all the steep up grades it would kill the mpg but my experience has been that it really loves that type of terrain. My commute is on mostly flat ground and freeway and I do much better on the trips where we go into the mountains or along the coast on hwy1 with a lot of little hills and curves.

I also noticed that it didn't seem to run out of breath at the higher altitudes as much as past cars with small 4 cylinders have done. It won't push you back into the seat at 8,000 feet but it isn't wheezing like I'd expect.
 
There's just something about these cars that they really love that type of driving for good mileage. I would have thought with all the steep up grades it would kill the mpg but my experience has been that it really loves that type of terrain. My commute is on mostly flat ground and freeway and I do much better on the trips where we go into the mountains or along the coast on hwy1 with a lot of little hills and curves.

I also noticed that it didn't seem to run out of breath at the higher altitudes as much as past cars with small 4 cylinders have done. It won't push you back into the seat at 8,000 feet but it isn't wheezing like I'd expect.

I noticed that too. Perhaps is one of the benefits of direct fuel injection along with the right gearing in the transmission.
 
30+ is encouraging as I am contemplating getting a CX5 in the very near future. I really want a vehicle that I can get 30mpg with (75 mi round trip commute a day w/some highway some county roads and some in town driving) and be able to throw a couple hockey bags and kids in as well. I like the style and mpg potential of the 6M Sport and was hoping that 30+ was really acheivable.
 
30+ is encouraging as I am contemplating getting a CX5 in the very near future. I really want a vehicle that I can get 30mpg with (75 mi round trip commute a day w/some highway some county roads and some in town driving) and be able to throw a couple hockey bags and kids in as well. I like the style and mpg potential of the 6M Sport and was hoping that 30+ was really acheivable.

I've picked this car up to car pool 3 hockey kids, fits 3 bags in the back, sticks in the back seat between 2 boys, they are 13, so it will feel smaller for them later. lots of trips to LA for hockey 350+ mile trips, I get 34mpg doing down and 32 coming up full load, family of 4, 75-80mph.... great car and at a great value, at least to me.

btw, I also notice mpg got better after 1st oil change, the car feels more broken in now, pulls better too.
 
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30+ is encouraging as I am contemplating getting a CX5 in the very near future. I really want a vehicle that I can get 30mpg with (75 mi round trip commute a day w/some highway some county roads and some in town driving) and be able to throw a couple hockey bags and kids in as well. I like the style and mpg potential of the 6M Sport and was hoping that 30+ was really acheivable.
You can do it just as easily with the autobox.
 
I also have been using mazda molly for oil changes...don't know if that helps but my total over all average just moved up from 27 to 27.1 which I will assume will go even higher because my last tank came in just shy of 29mpg. This is a 2014 AWD which I think is awesome for mostly city driving :)
 
I've picked this car up to car pool 3 hockey kids, fits 3 bags in the back, sticks in the back seat between 2 boys, they are 13, so it will feel smaller for them later. lots of trips to LA for hockey 350+ mile trips, I get 34mpg doing down and 32 coming up full load, family of 4, 75-80mph.... great car and at a great value, at least to me.

btw, I also notice mpg got better after 1st oil change, the car feels more broken in now, pulls better too.

Sounds great!
 
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