View Poll Results: What is your in town gas mileage?
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MPG Discussion / Complaints
Registered User
Joined: Jan 2005
Posts: 280
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From: RI
I am not sure about this but maybe the PCM flash has something to do with either very good mileage or very bad mileage...
I have read about people getting their car reflashed and gas mileage going down..
Right now I calculated a rough estimate of my gas mileage... 16.25mpg... 450miles on my 8 so I hopefully will see this number go up. I do 90% highway driving and I have not reved over 4k... only rev to 5k 3 times by accident... didn't even realize it.
I will see how many miles I get out of a full tank.
I have read about people getting their car reflashed and gas mileage going down..
Right now I calculated a rough estimate of my gas mileage... 16.25mpg... 450miles on my 8 so I hopefully will see this number go up. I do 90% highway driving and I have not reved over 4k... only rev to 5k 3 times by accident... didn't even realize it.
I will see how many miles I get out of a full tank.
Lawyer in training :)
Joined: Aug 2004
Posts: 913
Likes: 0
From: Atlanta, GA
Originally Posted by -=Zepplock=-
I get like 14 with 100% city if I drive it like I like - with occasional revups.
I get 15 if I drive below 3500
wtf?
I get 15 if I drive below 3500
wtf?
Also, budebaker, I drive an auto, so I don't know if the manual is better than the auto. All I know is that my gas mileage is way, way down as a result of my normal driving (as opposed to my conservative driving as of late). How frustrating!
Lawyer in training :)
Joined: Aug 2004
Posts: 913
Likes: 0
From: Atlanta, GA
Originally Posted by hagar852
I am not sure about this but maybe the PCM flash has something to do with either very good mileage or very bad mileage...
I have read about people getting their car reflashed and gas mileage going down..
Right now I calculated a rough estimate of my gas mileage... 16.25mpg... 450miles on my 8 so I hopefully will see this number go up. I do 90% highway driving and I have not reved over 4k... only rev to 5k 3 times by accident... didn't even realize it.
I will see how many miles I get out of a full tank.
I have read about people getting their car reflashed and gas mileage going down..
Right now I calculated a rough estimate of my gas mileage... 16.25mpg... 450miles on my 8 so I hopefully will see this number go up. I do 90% highway driving and I have not reved over 4k... only rev to 5k 3 times by accident... didn't even realize it.
I will see how many miles I get out of a full tank.
Registered User
Joined: Jan 2005
Posts: 280
Likes: 0
From: RI
Originally Posted by markd
That's weird--I was told the M-flash was supposed to improve fuel efficiency.
Yeah, I heard the same,, but some people are reporting a lower mileage with same driving after the flash...
I will see how mine works out once it is broken in..
Registered User
Joined: Sep 2003
Posts: 301
Likes: 0
Kinda funny how this was moved to "issues and problems", when I don't have an issue or a problem with it.
BTW -- -If I drive like a animal I can get as low as 14, but the same holds true for many of the cars I rent as well.
BTW -- -If I drive like a animal I can get as low as 14, but the same holds true for many of the cars I rent as well.
Registered User
Joined: Sep 2004
Posts: 46
Likes: 0
Well, the irony for me is, I bought this car to be able to drive it with some spirit. I don't mean I'd rev it all the time or anything but if I am going to have to keep it below 3750RPM's in the hope of not having to go to the gas station all the time, then I guess I might as well drive a Mazda 3.
Administrator
Joined: Jul 2002
Posts: 21,958
Likes: 115
From: portland oregon
because while you 60% city miles might only take 10 minutes per day anotehr persons 60% city might mean sitting in traffic going 5 miles in one hour- idling most of that time. idling uses a crap load of gas.
Administrator
Joined: Jul 2002
Posts: 21,958
Likes: 115
From: portland oregon
Originally Posted by black-rx8-msbodykit
How to find out how much miliage you get? All i know is i have to fill up my 8 every 3 days. and it take me 15 minutes get to school. Why i use gas so fast.....
Registered User
Joined: Feb 2005
Posts: 15
Likes: 0
12 mpg and Mazda says that't normal
I have a new 2005 RX-8 and after 2 tanks I am getting around 12 mpg. Don't really drive at high revs since I am still in the breakin period. Called Mazda Service and they said it usually takes about 3000 miles for the mileage to get up to 18 mpg. Looking for other opinions on this.
Registered User
Joined: Nov 2003
Posts: 603
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From: in the moment
I don;t know what about the 3000 mile thing but 2 tanks is certainly not enough ot raise the white flag yet. Are you in a cold climate, drive short distances etc.? I am currently getting 13 in the NEast but only drive 5 miles each way to work. On average after 12,000 miles, i probably average 17 all said and done. Give it some time.
Registered User
Joined: Oct 2004
Posts: 1,090
Likes: 0
I know you're in the break in period, but you wouldn't believe how your RPMs effect your mileage. I used to barely get to 200 mpg shifting around 6k-6.5k all the time. Just for giggles, I shifted just before 6k for a whole tank. My mpg improved to 220 mpg. I'm not saying drive like a granny, but be aware of where you shift when you're just out running errands and stuff.
Forbidden Donut
Joined: Jun 2003
Posts: 237
Likes: 0
Originally Posted by dazygirl415
I know you're in the break in period, but you wouldn't believe how your RPMs effect your mileage. I used to barely get to 200 mpg shifting around 6k-6.5k all the time. Just for giggles, I shifted just before 6k for a whole tank. My mpg improved to 220 mpg. I'm not saying drive like a granny, but be aware of where you shift when you're just out running errands and stuff.
Registered User
Joined: Feb 2005
Posts: 15
Likes: 0
I live in SoCal, the weather is nice about 72 degrees and sunny today. Warm the car up for about 30 seconds in the morning. The 12 mpg is a combo of city/freeway about 70/30. I called service at Browning Mazda in Cerritos (L.A.) and got the 3000 mile info from a guy at the dealership that bought a new 8. He said he started to get better mileage after around 3000 miles.
Registered User
Joined: Jan 2005
Posts: 171
Likes: 0
From: Griffin, GA
I've had my 8 for a week. Three tanks of gas so far and it's gone up .05 MPG everytime I fill up. I now get 19.8 MPG. I've been shifting around 3500-4000 RPM. I've gotten WOT a few times but try to be disciplined. Yesterday I got 265 miles before the low fuel light came on.
Senior Member
Joined: Jul 2003
Posts: 1,554
Likes: 1
From: DC Metro Area, USA
"How many miles do you get on a full tank?" - this depends on if I fill up at 1/4 tank, when the low fuel light comes on, or driving 20-30 miles after the low fuel light comes on. However, I usually get 20 mpg in the summer time and 18.5 mpg in the winter time with Shell 87 octane.
Registered User
Joined: Feb 2005
Posts: 15
Likes: 0
Trying to limit the Revs
Originally Posted by dazygirl415
I know you're in the break in period, but you wouldn't believe how your RPMs effect your mileage. I used to barely get to 200 mpg shifting around 6k-6.5k all the time. Just for giggles, I shifted just before 6k for a whole tank. My mpg improved to 220 mpg. I'm not saying drive like a granny, but be aware of where you shift when you're just out running errands and stuff.
Sold on Rotaries!
Joined: Sep 2004
Posts: 542
Likes: 0
From: Michigan
Originally Posted by markd
Speaking about the 8 getting pretty good gas mileage, how many miles do you guys get on a tank during aggressive driving? I filled up my tank and have been revving my engine slightly higher than normal (i.e., to merge with highway traffic) and I only got 60 miles on a half tank! That's over 80 miles less per tank than usual! How pathetic is that?!
I love this car, but there are some things I just absolutely hate about it...
I love this car, but there are some things I just absolutely hate about it...
I would guess that there is even some slight error possible when just calculating mileage after one fill-up. Only multiple data sets would truly indicate exactly what kind of mileage you get (there are a few "geeks" out there that keep spreadsheets). That's why I get a little suspicious of people quoting one number for city and one number for highway. It just doesn't work that way in real life usage.
Registered User
Joined: Dec 2003
Posts: 30
Likes: 0
From: Costa Mesa, CA
lemon laws
Originally Posted by SiCkRx-8
I have 15000 miles on my car and my last full tank of gas I ran it all the way to the fuel light and only had 184.3 miles on the tank. Im not quite sure on the mpg, but usually im getting 10-12 mpg no matter how i drive. I just had the 15,000 mile service done on the car from wayne mazda and their response is that the car is not "fuel efficient." Now im pissed because im wasting way too much money on filling the gas tank. I think its complete BS that some are getting the quoted EPA mileage and some aren't. I am going to attempt this way, but I am also bringing it back to the dealer. If Im still getting the same response I will be contacting the lemon officials. Thanks for the info skagen
Registered
Joined: Jan 2004
Posts: 997
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From: Milwaukee Wi.
Originally Posted by djseto
I was having an issue with gas mileage in my honda civic before I got my 8. I noticed that my car always got WORSE gas mileage in the winter. A friend of mines parents own a gas station and said that gas in the winter seems to do that. I didnt get an explanation, and as an engineer, I should have...but I noticed that my mileage went up towards the spring and into the summer. Does anyone have a better explanation of this?
Reformulated gas formulas are changed from winter to summer. Why I don't know. Has something to do with emisions. I seem to get better performance and gas milage in my cars and motorcyle during the summer. Again I don't know why.
'73 RX3->'77Cosmo->'79RX7
Joined: Aug 2004
Posts: 42
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From: Eastern PA
Just an update--I regularly get 21 MPG with super or premium and 20 MPG with plus. My gas light usually comes on around 240 miles and I usually fill at around 250 miles with 12 or 13 gallons. This is a mix of mostly highway with stop and go city driving. If the difference is around .10 per gallon between Premium and Plus, Premium is the way to go. This is all cooler weather meassures and might change as the weather warms up. I now have around 29K on my '04.
Has the whole shit.
Joined: Jan 2005
Posts: 1,772
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From: Orlando, FL
On my way home from the movies tonight, I just realized that my car is claiming I went through "1/4 tank" in 20 miles...That's JUST over 5 MPG - somehow I doubt it's actually THAT bad. I haven't even been driving hard.