Mazda5 real-world Mileage numbers

On highway.. between 70-75..sometimes.. even 80..

i wonder,, if it is due to 5 speed auto on 08.. or my driving style..(shrug)

It's probably a bit of both. We did a road trip with myself, wife. baby and gear. Our '07 Sport only has the 4sp AT, but managed a little over 31 MPG (either 31.2 or 31.5). We were doing 72ish most of the way on cruise. I imagine that the 5sp probably spots you the extra 1MPG. If you could keep it at a constant 70-72, I imaging you might make 33 MPG. I notices it is work to hit 30MPG at 70+ MPH though, as it seems very sensitive to wind, hills, gas pedal input changes. On the plus side, the relatively high RPM give plenty of power to motor up hills.
 
I'll try 70 MPH on Saturday, but I think that will result with about 26-27 MPG with my car. If so I'll back off on the MPH.
 
On highway.. between 70-75..sometimes.. even 80..

i wonder,, if it is due to 5 speed auto on 08.. or my driving style..(shrug)
What was the weather like? Particularly, warm/cool and rainy/dry?

And yeah, I agree that with the smallish 2.3, headwinds will make a significant difference at those speeds.
 
What was the weather like? Particularly, warm/cool and rainy/dry?

And yeah, I agree that with the smallish 2.3, headwinds will make a significant difference at those speeds.

it was around between 45F and 55F .. chaning between warm and bit chilly..

Man! My Honda Fit 1.5L usually goes 34mpg on average...on same condition..

Mz5 is bigger, smoother, stronger, (usa) YET! still manages good MPG..

Go 5
 
I found my gas receipts for our trip. The first one was about 100 miles in rain/snow with headwind and was 27.8 (Again about 72ish MPH). The return was a full 300 miles, over a mountain pass, with a few rest stops and freeway ramp returns. IT was 31.2 MPG. There was not much of any wind, maybe a slight cross wind)
 
Filled up the car with 1.5 gallons of E85 and the remaining of E10 gasoline. Long term fuel trim went from -4 to 0. The PCM added fuel to compensate for the ethanol content from running less than "base" on E10 to exactly "base" fuel trim on 17% Ethanol. Here are the numbers.

Went to STL yesterday. Trip south was into a full headwind with flags flying straight out. I drove 60-65 MPH. Pulled down a 31.5 MPG trip with 2 adults, 3 kids and a stop for lunch. Rolling hills on 4-lane most of the trip.

The return trip had a tail wind. Drove 60 MPH for most of the trip and pulled in a 34.5 MPG segment with no stops. I found on the last few miles that if you could drive 50 MPH you might pull out a 40 MPG average.

I love this because my last car was 18 MPG all the time.
 
08 5 auto

08 Mazda 5 auto

1st 30.1mpg - mostly highway, 25% AC
2nd 26.1mpg - 50%city/50%Highway, 50% AC

I think the new 5 speed auto gets better real world mpg than the manual on the highway due to the lower revs at cruising speed.
 
Just made a day run to Vegas from San Diego in our new 08 auto.

The trip there gave me 30mpg with about 75% usage of AC
The trip back gave me 32mpg with AC on 100%

There were two of us in the car both ways and we drove about 72-75mph.

I noticed the auto does a great job of selecting the proper gear for grades and has grade logic(it knows how to hold the gear all the way up).

Has anyone gone over 500 miles on a tank yet? Doing the math, it looks like its possible at about 32mpg.
 
I could have gone deep into the 500's. I was at 428 with 1/4 tank still to go with the wifes 08 auto. I wish I had that kind of tank capacity on my work car, I do 500 miles per week just driving to work. Per my Scanguage I got as much as 38.8 mpgs over 50+ miles of driving.
 
Never made 500 miles, but I'm very cautious with the fuel gauge and rarely get below 1/4 tank. I guess I'm set in my ways about the in-tank pumps needing some gas in there for cooling....

The wife did get back from an extended trip through WA, OR and ID and reported these figures. The trip was with 3 adults, the baby and a car crammed full of stuff.

WA-OR (68-73 MPH; 65 or 70 posted) 31.5 MPG
ID (80MPH; 75 posted; also "high-altitude" 85 octane gas) 29.7 MPG

While I would love to see north of 35 MPG (Out 01 Echo spoiled us with 38-41 MPG hwy), the practicality of a car of this size/weight that can hold this much (people and stuff) makes 29-31 very respectable. I suppose the '08 5AT might get closer to that 35MPG mark, but we make do with the 07 4AT.
 
I got 33.2mpg out of my 08 auto today on a trip to Los Angeles with the AC blasting and three of us in the car. I averaged between 70-72mph and had to sit in some LA traffic, which makes the number even more remarkable. The trip odometer showed about 263 miles and I put in 7.9 gallons, so 500 is definitely possible.
 
last 3 tanks, mostly rush hour intestate driving with the 06, AT

28.080 mpg
30.667 mpg
28.193 mpg

so almost 29 mpg.
 
On my recent trip to Las Vegas and a little bit of city driving I hit a whopping:

33.1 Mpgs.......

On the way back to LA i didnt fair to good the high winds were making my 5 work overtime.....

28 Mpgs
 
Impressed:

2008 Mazda5 5MT w/3200 miles on the clock, all stock, running 36PSI in the tires.

294 Miles, 9.07 Gallons = 32.4MPG

Travelling north from San Diego. From San Diego to LA, averaged 80-85MPH. Through LA, 70-80MPH with some traffic slowdowns. Through the grapevine @ 75-80MPH. From Grapevine to my destination cruise was set at 80MPH with the A/C on.


The way back I only managed 28MPG, but I had the AC on the entire way and I felt more headwind. Still, averaging 30MPG for the entire trip is fantastic.


Good thing it was so light on gas, here's what prices were like this weekend...(oh and there were actually more expensive places)

gasouch.jpg
 
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Hey! How did you get a photo of my car! (The wife gets the 5). Thankfully my little ECHO soldiers on to the tune of about 30MPG city. Then again, when I filled up 2 weeks ago, gas was only $3.60/gallon. Maybe I need to fill up short...
 

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