HIGHWAY MPG thread for both 2.0 and 2.5 w/poll!! - Page 3 - 2004 to 2016 Mazda 3 Forum and Mazdaspeed 3 Forums
View Poll Results: Highway MPG 2.0/2.5L
2.0 <34 Highway MPG 78 8.79%
2.0 34-36 Highway MPG 84 9.47%
2.0 37-39 Highway MPG 134 15.11%
2.0 40-42 Highway MPG 140 15.78%
2.0 43+ Highway MPG 71 8.00%
2.5 <30 Highway MPG 53 5.98%
2.5 30-32 Highway MPG 90 10.15%
2.5 33-35 Highway MPG 119 13.42%
2.5 36-38 Highway MPG 79 8.91%
2.5 39+ Highway MPG 39 4.40%
Voters: 887. You may not vote on this poll

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post #21 of 426 (permalink) Old 09-03-2014, 07:09 PM
smoothmoose
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Quote:
Originally Posted by OvrSteer View Post
Remember that EPA highway is measured at 60mph.

Touring S, 2.5l
Actually, the EPA highway cycle peaks at 60mph, but averages at 48mph:
Detailed Test Information

EPA introduced some "new tests" in 2008 including the high speed one which peaks at 80mph, but still averages at 48 mph.
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post #22 of 426 (permalink) Old 09-03-2014, 08:54 PM
mazda-mine
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My highway mpg is consistently above 40 since I passed 3000 miles. I generally get anywhere from 40-44 mpg and have been averaging 39-41 mpg on a tank (calculated by dividing miles/gallons filled) and usually getting about 400 miles per tank. The car has my average mpg varying between 38.7-38.9 mpg. I'm very impressed with the car so far, particularly as I came from a MINI Cooper and got about the same mpg.

2014 Mazda3 iGT Blue Reflex Mica: fog lights, auto-dimming mirror, door sills, alloy pedals, all-weather mats, cargo mat/net, 35% tint.
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post #23 of 426 (permalink) Old 09-04-2014, 09:04 AM
TheBobmanNH
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Quote:
Originally Posted by falcompsx View Post
sometimes i wonder if we actually do have a 13.2 gallon tank... I'd hate to go down to zero to empty knowing that I *should* have 2.2 gallons remaining and run dry 5 miles later. i've run it down to ~3 miles and it only took 10.9 gallons to fill up.
You can go well past zero and not "run out" of gas, but you shouldn't for reasons that have been brought up at least a billion times (fuel pump overheating, damage to fuel system). I generally try to fill up before my "range" says zero because I know I have at least another 60 miles before I actually run out of gas, but I have only once let it go past the "zero range" point.
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post #24 of 426 (permalink) Old 09-04-2014, 09:34 AM
SlyActiv
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You can weigh your average MPG against your average MPH to gauge the ratio of city/hwy driving. My display says ~39 MPG and ~34 MPH. Confirmed the 39 MPG at the pump yesterday. My commute is about 2/3 40 MPH cruising on back roads and 1/3 70 MPH hwy. Very little stop-and-go or waiting for lights to kill my MPG.

I do employ a few hypermiling techniques. I jump up to top gear quickly, sometimes going 1-2-4-6 through the gears. I try to stay under 2000 RPM when cruising flat, open road. I try to coast with lite engine braking when I know a stop is coming. This makes up for my 3 gear downshifts to jump around knuckheads driving well under the speed limit.

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post #25 of 426 (permalink) Old 09-04-2014, 09:28 PM
mazda-mine
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Quote:
Originally Posted by TheBobmanNH View Post
You can go well past zero and not "run out" of gas, but you shouldn't for reasons that have been brought up at least a billion times (fuel pump overheating, damage to fuel system). I generally try to fill up before my "range" says zero because I know I have at least another 60 miles before I actually run out of gas, but I have only once let it go past the "zero range" point.
Yeah, I never let mine go below zero, but I often get pretty close due to the overly-safe 'empty' point. I usually fill up when it's one bar and 10-30 miles left, and even then it's only around a 10 gallon fill-up.

2014 Mazda3 iGT Blue Reflex Mica: fog lights, auto-dimming mirror, door sills, alloy pedals, all-weather mats, cargo mat/net, 35% tint.
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post #26 of 426 (permalink) Old 09-04-2014, 09:34 PM
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I have no idea how the 2.5l here are getting above 36mpg on the hwy. You'd have to be using every single hypermiling technique to make that happen.
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post #27 of 426 (permalink) Old 09-04-2014, 10:17 PM
rvoll
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Quote:
Originally Posted by gregersonke View Post
I have no idea how the 2.5l here are getting above 36mpg on the hwy. You'd have to be using every single hypermiling technique to make that happen.
I totally agree. And if you're hypermiling that much, you should have bought a hybrid because you ain't really enjoyin' the 3. You ain't usin' sport mode. You ain't goin' too fast. You ain't hittin' the gas at the onramp. You ain't usin' A/C. And you ain't seein' what she does on twisty mountain roads. Either that, or your lyin' about your average mpg.

Sure, anyone can hit 40 mpg or more for a short period of time. I can even hit 60 mpg or more downhill. But hell's bells -- this Mazda is for drivin'. And drivin' is what I do.

Blue Reflex sGT - Hankook Ventus S1 noble2 tires - JBR Filter - Chrome Grille/Hatch/Window Trim - Luxwood side moldings - Black Chrome Fog Lamp Trim - Front parking sensors - OEM Rear parking sensors - Homelink mirror - Splash guards - Rear bumper guard - Kagu/OEM mats - Hardwired radar detector - Auxiliary power outlet - Curt Trailer hitch/custom wiring - 2.5L/GT badging - Soft cargo liner - Husky trunk liner - Alloy pedals - Kuda phone holder - Infinity/Polk/DSP Audio - Thule Cargo Box
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post #28 of 426 (permalink) Old 09-04-2014, 11:02 PM
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Quote:
Originally Posted by rvoll View Post
I totally agree. And if you're hypermiling that much, you should have bought a hybrid because you ain't really enjoyin' the 3. You ain't usin' sport mode. You ain't goin' too fast. You ain't hittin' the gas at the onramp. You ain't usin' A/C. And you ain't seein' what she does on twisty mountain roads. Either that, or your lyin' about your average mpg.

Sure, anyone can hit 40 mpg or more for a short period of time. I can even hit 60 mpg or more downhill. But hell's bells -- this Mazda is for drivin'. And drivin' is what I do.
There's no harm in driving efficiently. Since 2008, I have been stop-starting my vehicle at longer stop lights (>30s) when conditions permit. I don't really need to use the Air Con that much since it rarely gets above 30°C here and I prefer to open the moonroof anyway below 80km/h, although I wish the US/Canada got the "Eco A/C" mode found in Mazda 3s in other countries. And the Auto Start/stop.

Driving efficiently is good for reducing COČ emissions and consumption, which is one reason I bought the Mazda 3 (only 143 COČ g/km for the automatic) along with the i-Eloop and Active Grille Shutters. That said, I would be hard pressed to get the 6,1 l/100km figure quoted on the ECE cycle since my driving is usually mixed and I live in a mountainous area. But that means plenty of fun roads are nearby for the occasional "fun" drive, although it will not match the joy or engineering prowess that my prior BMWs brought me.

I really wanted Golf TDI but got tired of waiting for VW to get Puebla up and running...........2 year wait is too long.
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post #29 of 426 (permalink) Old 09-04-2014, 11:21 PM
rvoll
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Quote:
Originally Posted by mlin32 View Post
There's no harm in driving efficiently.
Of course not -- and I certainly do that much of time. But if you're averaging in the upper 30's with a 2.5 you aren't having any fun with the car. I've owned big bimmer's and 450hp Porsches as well as muscle cars. But that is serious driving, not fun driving.

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post #30 of 426 (permalink) Old 09-05-2014, 09:04 AM
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With the 2.5, I can get high 20's in sport mode/manual shift or mid 30's driving efficiently. Low 40's on the interstate. That being said, I'm usually at the high 20's and low 30's, it's too hard not to have some fun once I get in the drivings seat! Like my 2010 mz3, I see better fuel ecomomy, as I get more miles on the car.
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