2019 CX-5 Turbo engine...Bad fuel economy?

My GTR is averaging about 2 mpg lower than my 2014 CX5 touring or about 26 mpg of urban easy driving. I found that the easy way to get lower mileage is to not drive smoothly and using the power often. There is some technique to using turbo power in an efficient manner. Ed

This has been my experience with my CX-9 as well. I would guess that getting up to speed faster means the engine spends less overall time in the upper RPM range, leading to better mileage?
 
My GTR is averaging about 2 mpg lower than my 2014 CX5 touring or about 26 mpg of urban easy driving. I found that the easy way to get lower mileage is to not drive smoothly and using the power often. There is some technique to using turbo power in an efficient manner. Ed

Yeah, averaged 24.4 MPG on my 2018 CX-9 Signature and in the first 6000 miles of my new CX-9 am averaging, 24.1 MPG (all on fuelly).

The MPG you get is all in the way you drive. I found that for all my Mazda's getting up to speed quickly and then keeping off the gas and brake works best. Maintain speed through corners as well and actually keep lightly on the accelerator to keep your speed through. I averaged 26.5 MPG on my 2014 CX-5 and the 24 MPG on the CX-9 looks pretty consistent as well.
 
Lifetime average so far.
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A general observation today. While I leave the stop light at what I consider a non-rushed start, I see most others accelerate rather quickly before reachind the posted speed limit. They're not racing it, per se, but where I take a more more leisured approach, most others seem to be a little heavy footed and eager to reach the posted 45. Maybe they're fine and I'm the slow poke, but I'll never notice those 3 extra seconds to get to the speed limit.

Conversely, If I find myself a even a small bit more aggressive I'll notice the MPG difference.

YMMV, literally and figuratively.
 
I recall an article in one of the car magazines a few years back that addressed the driving habits that affected fuel economy. Most of their conclusions were obvious, but it was surprising that slowly accelerating a car to cruise speed can actually use more gas than quicker acceleration. The reason is that cars don’t hit their peak fuel efficiency until 40-50 mph, so if you take a longer time getting there, the car spends more of its time at less-efficient speeds. Of course, this assumes that you’re not racing away just to have to brake to a stop at the next light a block away.

In fact, if you have a manual transmission car, it’s been shown that heavy throttle, even full throttle, and short shifting (shifting into as high a gear as possible as quickly as possible) is the most efficient way to reach a given speed. The wide-open throttle reduces engine pumping losses past the partially-closed throttle plate and the short shifting reduces the frictional losses associated with high RPM.

So inching your way up to speed isn’t necessarily the most efficient.

Looking far ahead so you can drive smoothly to avoid braking trumps everything else. Braking is what sucks the living daylights out of gas mileage and is the reason hybrids get so much better city fuel mileage.

- Mark
 
I recall an article in one of the car magazines a few years back that addressed the driving habits that affected fuel economy. Most of their conclusions were obvious, but it was surprising that slowly accelerating a car to cruise speed can actually use more gas than quicker acceleration. The reason is that cars don’t hit their peak fuel efficiency until 40-50 mph, so if you take a longer time getting there, the car spends more of its time at less-efficient speeds. Of course, this assumes that you’re not racing away just to have to brake to a stop at the next light a block away.

So inching your way up to speed isn’t necessarily the most efficient.

- Mark
Exactly how to hit a better MPG. Open your throttle and as you hit your desired speed ease on the throttle and cruise along. Do this and observe your INSTANT MPG.
 
Exactly how to hit a better MPG. Open your throttle and as you hit your desired speed ease on the throttle and cruise along. Do this and observe your INSTANT MPG.
IMO no matter how the OP/strinh、AirCon05、and Catch22 are trying to follow the suggestions to save fuel on their 2.5T AWD, their 16.8 mpg won’t suddenly be getting close to 24/22/27 combined/city/highway EPA ratings, nor become 27 mpg like someone else claimed. There’s just no way!
 
I recall an article in one of the car magazines a few years back that addressed the driving habits that affected fuel economy. Most of their conclusions were obvious, but it was surprising that slowly accelerating a car to cruise speed can actually use more gas than quicker acceleration. The reason is that cars don’t hit their peak fuel efficiency until 40-50 mph, so if you take a longer time getting there, the car spends more of its time at less-efficient speeds. Of course, this assumes that you’re not racing away just to have to brake to a stop at the next light a block away.

In fact, if you have a manual transmission car, it’s been shown that heavy throttle, even full throttle, and short shifting (shifting into as high a gear as possible as quickly as possible) is the most efficient way to reach a given speed. The wide-open throttle reduces engine pumping losses past the partially-closed throttle plate and the short shifting reduces the frictional losses associated with high RPM.

So inching your way up to speed isn’t necessarily the most efficient.

Looking far ahead so you can drive smoothly to avoid braking trumps everything else. Braking is what sucks the living daylights out of gas mileage and is the reason hybrids get so much better city fuel mileage.

- Mark
The test was performed with a BMW M3, not a Prius as well, for context.
 
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