FUEL EFFICIENCY - Page 150 - Mazda 6 Forums : Mazda 6 Forum / Mazda Atenza Forum
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post #1491 of 1496 (permalink) Old 03-01-2018, 08:57 AM
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Last time I looked, my 2016 manual transmission model was at 34.4 mpg over 27,000 miles of use. That’s an actual calculated value of miles driven divided by gallons of fuel used since the day I bought this car.

A couple of things to note about my driving...

I’m a pretty average driver. I don’t regularly flog my car. However, I don’t follow the “up shift” command either. I don’t know where that puts me on the continuum, but take it for what it’s worth.

Where I currently live is very rural and mostly flat. I don’t have to contend with heavy traffic, stop and go, or lots of hills. It’s also fairly cool weather-wise, so I don’t use the A/C as much as other folks. I also tend to not drive my car so much in the winter. Most of my driving is at around 55-60 mph. When I travel on the interstate, I’m usually going about 5 mph over whatever the posted speed is...so, depending on where I am, that’s generally 70-75. All in all, where and how I drive has a major impact on that 34.4 mpg.

Very soon, my wife and I will be moving. We will be living in a much more crowded, congested area. The terrain is much hillier and the weather much hotter. I’m expecting all that to have a negative effect on my fuel economy.

* edit...I forgot to mention, I usually run 91 octane non-ethanol fuel. Where we’re moving, that isn’t available, so I’ll have to use E-10 gas. That should also knock back my mpg number some.


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post #1492 of 1496 (permalink) Old 04-03-2018, 06:34 AM
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After 40,000 miles... my M-6 M/T "average" is holding at 29.4 MPG... per the dashboard readout.... but that is mostly local driving, in traffic.
Every 6 weeks or so I visit my oldest daughter and family, a combination of 100 miles of interstate, and 100 miles of open country roads...Those trips, deliver me a solid 34.5 MPG


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post #1493 of 1496 (permalink) Old 04-06-2018, 03:51 PM
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Over 120K miles of mostly open highway (80%) driving at either 60 or 75mph and running a 33 mpg average lifetime. Mileage takes a hit in winter as the temps drop and below 0F it really sucks for a Skyactive, it has to run richer to keep warm and warming it up before driving takes it's toll usually around 25-26 mpg. Summer time helps counter the cold with 35-36 mpg and only rarely have to drive in slow traffic.

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post #1494 of 1496 (permalink) Old 04-06-2018, 04:08 PM
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Meh.

I just got back recently from Colorado (skiing @ Wolf Creek) which featured single-digit to teens overnight temps.

Mileage was not impacted at all; in fact, on the way home I posted the best tank I've EVER had. I credit it to the lower density of air and the ECU being able to crazy-ramp both compression and ignition advance without knocking.
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post #1495 of 1496 (permalink) Old 04-23-2018, 08:41 PM
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Curious how accurate you guys consider the readout in the car is compared to hand calculated.

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post #1496 of 1496 (permalink) Old 04-23-2018, 09:39 PM
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Quote:
Originally Posted by idrive View Post
Curious how accurate you guys consider the readout in the car is compared to hand calculated.
Mine is fairly accurate. Usually within .5 mpg.


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2016 Mazda 6 Touring (w/6-speed manual transmission)
OE fog lights/navigation card/auto-dimming mirror/
Tanabe front strut bar/
Orange Virus 91-octane tune/Racing Beat rear muffler

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