Great mpg so far on 2023 CX-5 Turbo

[jadmt]

So for those with the turbo, any truth that using premium improves MPG?

on my 23 I get the same mpg ie 28-31mpg on the highway no matter if I am using 91 octane (generally the highest I can get here) or 87. I have run many tanks of both and when I run 91 I make sure the prior tank is near the E mark so as not to dilute it. If I am in an area where I can really use the turbo I can feel a difference in power but not in mpg. I live in Montana where speed limits are high and enforcement is low so I like use the turbo and sport mode. I just returned from a 500 mile trip where I was rarely under 80mph. my actual mpg is always slightly better than the computer shows. I always fill up the same way so I am confident in my mpg as i check every fill up.

 

[chickdr]

For me, no difference in 87 vs 93 as far as MPGs.

 

[ruthrj]

So for those with the turbo, any truth that using premium improves MPG?

No difference for me. 2000 miles on 93 vs 2000 miles on 87 and tank averages were 25-26 mpg regardless of octane. US driver, majority of gas was Marathon, 10% ethanol content same gas station.

 

[CX5Nut]

Good to know!

 

[hsdejong]

With a 2 liter, natural aspirated manual, 165 hp, mild hybrid with cylinder deactivation CX-5 (2023) engine and 50% highway / 50% urban driving I have an average of 37 mpg (6,3 liter/100 km) gasoline consumption.

 

[ADS-B]

Don't fill it past the shutoff. It can damage something. There was a bunch of threads awhile back about it. When it clicks and shuts off don't add anymore.

I almost always fill it past the shutoff and never had an issue. I try to squeeze in every drop possible.

 

[N7turbo]

With a 2 liter, natural aspirated manual, 165 hp, mild hybrid with cylinder deactivation CX-5 (2023) engine and 50% highway / 50% urban driving I have an average of 37 mpg (6,3 liter/100 km) gasoline consumption.

Hybrid CX-5? Are you from the future?

Anyway, though I see 30mpg on some trips, my tank average is 22 this time. Must be the winter gas partly to blame.

 

[hsdejong]

Hybrid CX-5? Are you from the future?

In Europe, Mazda has been selling CX-5 models with mild hybrid since 2023.
In addition to being slightly more economical, it also makes the i-Stop (start-stop system) very smooth.

What is Mazda M Hybrid?

Mazda M Hybrid is our mild hybrid technology. It uses a small Integrated Starter Generator (ISG) to capture energy that is normally wasted during braking and...

www.youtube.com

Mazda unique mild hybrid system which is included on vehicles equipped with Skyactiv-X.

www.youtube.com

 

[jadmt]

 

[Mazdiod2]

on my 23 I get the same mpg ie 28-31mpg on the highway no matter if I am using 91 octane (generally the highest I can get here) or 87. I have run many tanks of both and when I run 91 I make sure the prior tank is near the E mark so as not to dilute it. If I am in an area where I can really use the turbo I can feel a difference in power but not in mpg. I live in Montana where speed limits are high and enforcement is low so I like use the turbo and sport mode. I just returned from a 500 mile trip where I was rarely under 80mph. my actual mpg is always slightly better than the computer shows. I always fill up the same way so I am confident in my mpg as i check every fill up.

I've noticed a couple of times when I manually computed my MPG it was higher than the dash gauge indicated. I got 36mpg on one leg of my recent 1200 mile trip (2.0NA 6MT)but not as good on the return. Probably wind. I get noticably better MPG with no ethanol gas, no matter what the octane.