Current fuel consumption reading

[wickedassskydancer]

Hey people...

Can you guys tell me what a normal current-fuel-consumption reading (L/100km) should be off a start for a 2007 Mazda 3 Sport GT automatic? I'm getting what I believe to be ridiculously high readings. On a slow start I get anywhere between 50 to 60+ L/100km. If I gun it a bit, I get something in and around 80 L/100km. I know the engine uses more gas when you start to go... but are my readings anywhere near normal??!! In addition I'm getting laughable fuel economy. Mind you... I really only do city driving with the car... but right now I've accumulated 140km and I'm halfway through the tank (and that's with having taken the car out on the highway for a bit). This past winter I got less than 275km on a single tank. WTF!!! There was a point recently where I was taking the car on to the highway a fair bit... but even then I was only getting about 430km at best per tank. Can someone enlighten me as to what might be wrong and I should do?

Other tidbits of information that might help:

- tire pressure is optimal
- the car is barely used... only has just over 4000km on it
- car was brought into the dealer for this very problem... no leaks, no engine codes where found, computer was flashed and/or updated, etc.
- I've been using Esso regular gas... but have recently switched to Shell regular
- there was the occasional smell of gas in the cabin of the car during the winter... mainly on startups for a while, but disappeared. It hasn't happened in a while, but the crappy fuel economy persists (I informed the dealer when it was brought in)
- I drive like a granny... I ain't pushn' this car

Any feedback would be greatly appreciated. THX!

[mit-gee-mui]

http://www.torontomazda3.ca/forum/sh...t=fuel+economy

Take a look here for some numbers.

[Fuman]

Hey,
That does seem abnormal. Even if I floor it off the line, I don't get more than 50L/100KM
Normal accel off the line, I get about 23-28L/100KM.
Highway cruising (at 110-120km/h), I get about 8-9L/100KM
Hope this helps.
Something does seem off in your car. When the flashed the ECU, did they flash it with a transmission update as well?

[wickedassskydancer]

Hey Fuman...

I couldn't tell ya what updates were made. I didn't and don't know enough about cars to have asked. I was simply told they flashed it and made sure it had the most recent updates. I would assume they checked and updated everything. Knowing you're getting something in the mid to high 20s, tells me somethings definitely wrong.

[Fuman]

Hey Fuman...

I couldn't tell ya what updates were made. I didn't and don't know enough about cars to have asked. I was simply told they flashed it and made sure it had the most recent updates. I would assume they checked and updated everything. Knowing you're getting something in the mid to high 20s, tells me somethings definitely wrong.

If you live in the Richmond Hill area, PM me.
I can give you a ride in my car to see if you notice a difference during regular driving.
Maybe by fluke we will work out a hypothesis.

Which dealership have you been taking the car to?

[wickedassskydancer]

Thx buddy, but I'm out in Oakville :p

I've taken it in to the Oakville dealership... and will be paying them another visit pretty damn soon. If they can't resolved it... I'll bring it to other. If that doesn't work... I just might push the thing into the lake.

[SonicBoy]

My 07 was like that. After the engine broke in after 10,000 fuel economy got better. You also can't trust the consumption numbers you see.

Have you been zeroing out the average numbers after every fill up?

[wickedassskydancer]

The dealer told me the fuel economy should be more "normal" after I hit 3000km. I can't say that it's all that much better tho'. I haven't been resetting the average actually... I'll start doing that. It started out at around 14.5 L/100km when I got the car, but since I've been hitting the highway a lil' more recently... it's made it's way down to 11 or 12. Still.. even that number is completely inaccurate based on the kilometers I've been getting per tank.

[x_o_k_x]

omg what happend to your fuel consumption, this is insane 250km on full tank wow there is definately something is wrong. Im in my first tank of gas on the brand new car, just drove 450 almost and still have a little less then half a tank.. And you regular service is being done?

[wickedassskydancer]

Yup... took it in for the servicing after 4 months... just like Mazda prescribes. Everything appears to be alright... but my guess is they didn't dig deep enough. I'm throwing out a guess, knowing very little at all about cars, but perhaps it's an oxygen sensor problem?!

[Fuman]

Thx buddy, but I'm out in Oakville :p

I've taken it in to the Oakville dealership... and will be paying them another visit pretty damn soon. If they can't resolved it... I'll bring it to other. If that doesn't work... I just might push the thing into the lake.

Oakville's DP is on this board, send him a PM.
He can help you out. From what other people have said, he is a friendly guy that gets the work done

do NOT trust the "average"L/100KM on our cars.
I find it not accurate.
Reset the trip computer when you fill up, and do your own L/100KM.

[wickedassskydancer]

Thx! Will do.

[QEWmazdaPrez]

Thanks for letting me know about this issue. I'd be happy to help out personally. Please contact me at the dealership tomorrow and I can go over some of the suggestions that may be causing this.

[Cardinal Fang]

The mileage on your car seems really bad. I can only recall one other member with mileage as bad and that was SABIO.

[wickedassskydancer]

Are they still on this forum under that name? I just checked the members list, but couldn't find them.

[trix241]

Hey,
That does seem abnormal. Even if I floor it off the line, I don't get more than 50L/100KM
Normal accel off the line, I get about 23-28L/100KM.
Highway cruising (at 110-120km/h), I get about 8-9L/100KM
Hope this helps.
Something does seem off in your car. When the flashed the ECU, did they flash it with a transmission update as well?

Yea i would agree... mine is the same.

[mit-gee-mui]

Are they still on this forum under that name? I just checked the members list, but couldn't find them.

Here you go. You can't find him because he was banned. Here are a few of his posts.


http://www.torontomazda3.ca/forum/sh...hlight=mileage

http://www.torontomazda3.ca/forum/sh...&postcount=409

http://www.torontomazda3.ca/forum/sh...&postcount=374

http://www.torontomazda3.ca/forum/sh...&postcount=155

[wickedassskydancer]

Thx!

[mazda lover]

omg what happened to your fuel consumption, this is insane 250km on full tank wow there is definitely something is wrong. I'm in my first tank of gas on the brand new car, just drove 450 almost and still have a little less then half a tank.. And you regular service is being done?

you getting 450KM on a little less than half a tank on a 2.3? how much is a little less
I think your gas gauge is off.
I get 250KM on a half tank. I get an average of 30MPG
I usually fill at 450KM at about 1/4 and put in about 45 liters..
is your a auto or standard...2.0 or 2.3
what is your mileage?
have to agree 250KM on a tank is way out of whack
2005/GT/GFX/2.3/AUTO

[wickedassskydancer]

Hey mazda lover...

Nah... I'm getting WAY less then 450km on a full tank. I'm averaging about 350km per tank... give or take. As my initial post mentions... I was recently at half a tank left with 140km to show for it. Pretty miserable. It's pretty much all city driving, but still. Anyway.. it's all mentioned above.

[x_o_k_x]

you getting 450KM on a little less than half a tank on a 2.3? how much is a little less
I think your gas gauge is off.
I get 250KM on a half tank. I get an average of 30MPG
I usually fill at 450KM at about 1/4 and put in about 45 liters..
is your a auto or standard...2.0 or 2.3
what is your mileage?
have to agree 250KM on a tank is way out of whack
2005/GT/GFX/2.3/AUTO

alright so here it is, its 2.3 AUTO, My total milage as of now is 547km and I STILL have 1/4 of a tank left of gas. When I picked up my car I had 10km on it with full tank of gas. So according to the km left I can still go another 110km. Pretty good I think at 55% break in only. BTW no highway driving and no driving past 90km/h at the break in for me. To be on the "safe" side.

[wickedassskydancer]

Wanna trade?!! :p

[maats]

I purchased an 08 Mazda 3 Sport GT one month ago. My first tank of gas I used 44.5L and drove 487Km which is approx. 9.17L/100Km. My second tank of gas, I used 40L and drove 467Km which is approx 8.6L/100Km. I live in Courtenay,BC and primarily use the vehicle to travel to work and back and travel around town on weekends. There are about 3 stoplights I may encounter on the way to work. I traded my 06 Nissan Frontier in on the MS3 because of the price of fuel. The frontier had an 80L tank and I barely got 450Km per tank. I drove the truck lightly and that was the best it would do. It was a great truck, but when gas is $1.30/L it just was worth it to me anymore. I was seriously considering purchasing an 06 MS3 sport and opted for the truck. Wish I would have purchased the MS3 from the start. Anyway, I found this forum and there is a lot of usefull info. I wish i would have held out until 30 Apr 08 for the purchase because of the huge discount for the 08 Sport GT model. I basically got 0% finacing on $5500 because of my trade. I would rather have gotten the $3900 discount.

[mazda lover]

try this gas calculator ...converts to U.S. gallons etc

http://oee.nrcan.gc.ca/transportatio...ut.cfm?attr=24

[x_o_k_x]

Wanna trade?!! :p

haha lol sure Got speed3??