2.5T Fuel Economy - Mazda 6 Forums : Mazda 6 Forum / Mazda Atenza Forum
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post #1 of 22 (permalink) Old 07-10-2018, 09:41 AM Thread Starter
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2.5T Fuel Economy

Just as the title says: post up your fuel economy numbers!

I'm getting a solid 22 MPG in city driving, and as much as 32 MPG on the highway if I keep my speed below 75 and never leave the right lane.


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post #2 of 22 (permalink) Old 07-10-2018, 09:59 AM
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My average is around 7.5-7.6 L/100kms, which is right where the Hwy mileage is supposed to be. I don't do a lot of city driving, mostly highway or rural.
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post #3 of 22 (permalink) Old 07-10-2018, 11:33 AM
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I drive 500 miles a week, a combination of backroads and highway. Very little city driving. Trip A gets reset every fill up and consistently averages about 30.5mpg. Trip B has never been reset since new and is at 29.9mpg (5700 miles on the odometer)

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post #4 of 22 (permalink) Old 07-10-2018, 01:38 PM
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So far with all city mileage I'm getting 22.8 MPG on regular fuel, and it's been really hot here so the A/C has been running continuously!
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post #5 of 22 (permalink) Old 08-08-2018, 03:28 AM
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Do we know how trustworthy the car is at calculating fuel mileage? I know other cars are famously inconsistent re: how accurate they are, but I don't know about the Mazda6.
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post #6 of 22 (permalink) Old 08-08-2018, 11:07 AM
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1600 miles

28 combined.
I sit in slow moving West Side Highway traffic in NYC everyday.
My last car was a Jeep and not even close with the gas mileage computer, so I would use pen and paper at the pump.
This car's computer has been really close.
I'm getting almost 10 more miles a gallon so I am going to stop with the pen and paper.
Close enough for me.
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post #7 of 22 (permalink) Old 08-08-2018, 03:41 PM
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Quote:
Originally Posted by RShack View Post
Do we know how trustworthy the car is at calculating fuel mileage? I know other cars are famously inconsistent re: how accurate they are, but I don't know about the Mazda6.
Mazda fuel calculators seem to be very accurate. I always calculate mileage every fill up, and both my 18' Mazda 6 and 18' CX-9 are always within .2 or .3 MPG of actual. Sometimes they are exact. Now Honda's on the other hand... All of my Honda and Acura vehicles would be anywhere from 1-2 MPG off, and usual to the worse (they were always optimistic, or just trying to make you feel better).

I have about 1,700 miles on my 6 now, and do a mostly in city driving. The average has been right around 23 MPG. One all highway drive I got 34.8 MPG driving 70 MPH pretty much the whole time. These numbers are very close to my 16' Mazda 6 without the turbo, so I'm pretty impressed! Of course, if you are having fun on the back roads, MPG does dive quite a bit.
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post #8 of 22 (permalink) Old 08-08-2018, 07:10 PM
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Quote:
Originally Posted by NRS16GT View Post
Mazda fuel calculators seem to be very accurate. I always calculate mileage every fill up, and both my 18' Mazda 6 and 18' CX-9 are always within .2 or .3 MPG of actual. Sometimes they are exact. Now Honda's on the other hand... All of my Honda and Acura vehicles would be anywhere from 1-2 MPG off, and usual to the worse (they were always optimistic, or just trying to make you feel better).



I have about 1,700 miles on my 6 now, and do a mostly in city driving. The average has been right around 23 MPG. One all highway drive I got 34.8 MPG driving 70 MPH pretty much the whole time. These numbers are very close to my 16' Mazda 6 without the turbo, so I'm pretty impressed! Of course, if you are having fun on the back roads, MPG does dive quite a bit.


So almost no penalty in MPG with more power over the ‘16? Sounds like a win to me.


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post #9 of 22 (permalink) Old 08-08-2018, 10:02 PM
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Mostly rural driving here. Speed limits 45-55. Long stretches mixed with sharp bends so quite a bit of slowing down and accelerating. Lead foot enjoying the turbo coming out of those bends. A/C running constantly. Temps in the 90s+ Exxon 93 exclusively. My average has crept up from 26 mpg to 28.9 mpg. I’ve found the trip computer to be pretty accurate as well always within a couple tenths of my calculated numbers.

I’m going to switch to Shell the next tank and stay with that for awhile and see if perfromance and feel mileage changes.

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post #10 of 22 (permalink) Old 08-08-2018, 11:56 PM
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The best way to calculate your fuel economy is to fill up a full tank, reset the trip counter, drive until tank is empty and then note how much fuel was needed to fill the tank up to full again. Take the mileage driven and the amount of fuel filled up, head over to google and find a fuel economy calculator and punch the numbers in. Simple and accurate.
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