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rediculous gas consumption of my 2008

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Old 10-09-2011 | 10:04 PM
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cougarrx8's Avatar
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rediculous gas consumption of my 2008

So I fill the completely empty tank for 65$ here in Toronto and I am empty at 340km?????
The car only has 73000 km on it and full maintenance always done at dealership. What is going on? Any ideas anyone? Usually my bf posts about my car under this handle but I am posting this time so please keep it grade school level when u try to explain anything to me as I am not a mechanically inclined lady. I bought the car cause of wonderful handling and looks second. Any help would be greatly appreciated.
Old 10-09-2011 | 10:09 PM
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You don't have to be mechanically inclined to read. Look at the stickies in this section, there is a cumulative thread about this very interesting topic. The search function is a wonderful tool. Use it.

Last edited by 9krpmrx8; 10-09-2011 at 10:11 PM.
Old 10-09-2011 | 10:23 PM
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Originally Posted by cougarrx8
So I fill the completely empty tank for 65$ here in Toronto and I am empty at 340km?????
.
Hate to break the news but ........ totally normal city mileage .
Old 10-09-2011 | 10:59 PM
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Welcome,

If car is new to you, a tuneup might help. Also, recommended reading are the 2 threads in my sig.
Old 10-09-2011 | 11:05 PM
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I get 400km on about 50 littes of gas.. I fill mine with 91 octane. A mix of highwY and city driving. Are you getting 340km on 60litres or 50 liters?
Old 10-09-2011 | 11:05 PM
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Originally Posted by Brettus
Hate to break the news but ........ totally normal city mileage .
Right. 13-14mpg during city driving isn't abnormal. Of course mpg is dependent on many different factors, but don't be too surprised at this. Sports cars are usually not very fuel efficient...
Old 10-09-2011 | 11:10 PM
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Originally Posted by cougarrx8
So I fill the completely empty tank for 65$ here in Toronto and I am empty at 340km?????
The car only has 73000 km on it and full maintenance always done at dealership.
how many gallons did you fill with?
how many miles have you had the car?
how many miles have you kept track of the mileage?
how do you calculate the mileage?
do you have more than one mileage figure to share with us?
has the mileage changed recently?
what is your average daily drive like? how many miles, how much time and at what speed(s)?
Manual transmission or Automatic?
What maintenance has been performed this year and when(how many miles ago or when)
Old 10-10-2011 | 01:20 AM
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monchie's Avatar
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You should have did your research before you've decided to get an rx8. I wish i did it in the first place, but i had to have it when i saw it...lol
Old 10-30-2011 | 08:14 PM
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Originally Posted by zoom44
how many gallons did you fill with?
how many miles have you had the car?
how many miles have you kept track of the mileage?
how do you calculate the mileage?
do you have more than one mileage figure to share with us?
has the mileage changed recently?
what is your average daily drive like? how many miles, how much time and at what speed(s)?
Manual transmission or Automatic?
What maintenance has been performed this year and when(how many miles ago or when)
I got my automatic transmission vehicle at 60000 and got 440 km for the full tank then. I had maintenance done as per guide as it was up to date from first owner and checked by dealership prior to sale. I have my oilchange and all done at 7!000 and am now at 73000 and just got an oilchange after realizing horrible petro canada oil put in by mazda dealership at 70000 was pure black in colour!!! changed for highest end 5w oil. Dont know miles and dont know how big the gas tank is but know that now at second line below the quarter tank mark I am at only 258 km a far cry from the 440 km per full tank I used to get. I drive 10km to work each way at around 60 -80km
no highway. I also take it to the store, the gym, downtown on highway to get engine going.
so pretty messed up if u ask me.


an hour no highway
Old 10-30-2011 | 08:23 PM
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The complete newbie stuff stripped out, this is basically just the list of what should be looked at as a potential culprit.

Originally Posted by RIWWP
Gas Mileage:
The reality is, a healthy RX-8 will get 17-18mpg city, 22+mpg highway. But 'healthy' means completely healthy: healthy coils, wires, plugs, O2 sensors, carbon free engine, good compression, healthy cat (or no cat), good transmission/diff fluid. Let even one of these slide, and your mileage WILL drop, and it will drop fast. If you believe that RX-8s simply can not get this mileage because you have never seen it, then there is only 1 person to blame, and that is YOU. If you don't get this mileage, then there is something wrong with one of the above points. Or with your foot. Your right foot can make the mileage drop quite a bit as well. And I don't mean granny driving as the answer to good gas mileage. Smoothness is more important than speed. Smooth and fast is better mileage than unstable and slow.

So if you can't get this mileage, start poking around for what is wrong.
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