Fuel Efficiency........

[Sunnybono]

I own a 2004 Mazda 3 GT Sport (61k kms). On average I'm getting only 8-9kms per litre of gas. My wife drives this car and I know she doesn't race it. Frankly I'm a little concerned with this car. I had posted the same question last year and someone on this forum told me to stop using Sunoco Gas due to the ethanol content in their gas. This improved the mileage, but now I'm expecting to get atleast 10 kms/litre but nothing. The only modification done to the car is that I always get gas from Petro Canada, I've changed the air filter to a K&N and I only use Mobile 1 5W20 oil with Mazda filter.

ANy suggestions out there or are you guys experiencing the same issue

sk

[RedRaptor]

I own a 2004 Mazda 3 GT Sport (61k kms).* On average I'm getting only 8-9kms per litre of gas.* My wife drives this car and I know she doesn't race it.* Frankly I'm a little concerned with this car.* I had posted the same question last year and someone on this forum told me to stop using Sunoco Gas due to the ethanol content in their gas.* This improved the mileage, but now I'm expecting to get atleast 10 kms/litre but nothing.* The only modification done to the car is that I always get gas from Petro Canada, I've changed the air filter to a K&N and I only use Mobile 1 5W20 oil with Mazda filter.

ANy suggestions out there or are you guys experiencing the same issue

sk


What's wrong with 8km to 9km per L of gas? Is the car an automatic or manual? How about the type of driving (highway or city)? What were you expecting from a 2.3L engine? 6km to 7km per L like a Corolla?

::)

[Sunnybono]

I was expecting atleast 10km per litre with that size engine. Yes the car is automatic and the driving is a mix of city & hiway. I'm comparing this car to my current Toyota Highlander (SUV) with a 2.4L automatic engine which I consistently get over 10kms/l of gas. My previous cars where similar in engine size but probably heavier than the mazda, and I would average over 10kms/L of gas.

sk

[Chuckie]

im make 9.7-9.8L/100km, which is a litre every 10.2km (shifting at under 3k rpm, most of the time at 2.5k)
if i drive more spiritly (which isn't that spirited at all) it's 10.5L/100KM, which is 9.5km/L (shifting at somewhere between 3.5k-4k)

I've heard from some other members that they are getting 13L/100KM+
This is how our cars are..
Toyota has a better fuel efficient engine than mazda, their vvt is great.

-Chuckie
edit: heck, aren't there like members who get just over 400 a tank?

[b]

im make 9.7-9.8L/100km, which is a litre every 10.2km (shifting at under 3k rpm, most of the time at 2.5k)
if i drive more spiritly (which isn't that spirited at all) it's 10.5L/100KM, which is 9.5km/L (shifting at somewhere between 3.5k-4k)

I've heard from some other members that they are getting 13L/100KM+
This is how our cars are..
Toyota has a better fuel efficient engine than mazda, their vvt is great.

-Chuckie
edit: heck, aren't there like members who get just over 400 a tank?



Yep I was getting 400km to a tank... but with the new engine and exhaust for some reason I am getting 500km or more a tank now.

[CoolColombian]

^^ Wait till you pass the brake in time for the engine my friend, I have only 23000 km and not getting more than 400km out of tank.

[majic]

What's wrong with 8km to 9km per L of gas? Is the car an automatic or manual? How about the type of driving (highway or city)? What were you expecting from a 2.3L engine? 6km to 7km per L like a Corolla?

::)


8km/L = 12.5L/100km = teh suck
11km/L = 9.1L/100km = teh better and roughly what the majority is getting on a ankof mixed driving (11-12km/L) or 8-9L/100km

[RedRaptor]

What's wrong with 8km to 9km per L of gas?* Is the car an automatic or manual?* How about the type of driving (highway or city)?* What were you expecting from a 2.3L engine?* 6km to 7km per L like a Corolla?

::)


8km/L = 12.5L/100km = teh suck
11km/L = 9.1L/100km = teh better and roughly what the majority is getting on a ankof mixed driving (11-12km/L) or 8-9L/100km


My bad, I was reading the km thing wrong. I thought he was getting 8L/100km and complaining. :)

[Sunnybono]

So tell me everyone, am I wasting my time going back to dealer and asking them to look into this?? Personally I find it rediculous and unexceptable!!!

Or is there anything I can do to increase the fuel efficiency on this car????

sk

[sbmonkey]

I was very confused until I found this: http://www.1728.com/convmlge.htm
(so you can discuss with your neighbors to the south)
8)

[MPS]

i was getting about 350 to a tank on my 2004 now i get 270 on my speed >:(

[alco]

wow, i can't believe the numbers you guys r getting, well i have the 2.0 litre engine, and i got it for a reason "fuel efficiency" - i'm gettin approx 600 km per tank AT least and i drive my guts out, go mazda it's ure bday!

[PlatMS6]

i was getting about 350 to a tank on my 2004 now i get 270 on my speed >:(


270 when the light pops on I assume... that would make it 270/45L, the 10L leftover after light was also correct on my Mazda3 (55L Tank) 16.6L/100k WTF?

I get 360 on the dot pretty much every time @ Fuel Light which is +/- 1L of 50 (60L Tank)L....so 360/50L 13.8L/100k 50/50 City-HWY (Sunoco 94)

Your car weighs about 400LBS less...and I am boost happy thats for sure, so something seems outa place...do you check that your car turns off at 30s since you put in your turbo timer...eheheh jks

[MPS]

well i run on 94 only and i have 540 km now on my 3rd tank ... and i think there is a problem with mine it runs rich and back fires >:( ohh and my gas pedal sticks i just touch it a litl and its drops down by its self and redlines for about 2 to 3 seconds ... having that checked out monday

[PlatMS6]

Get your car checked out...also get rid of the BOV (are you venting to atmosphere or recirc?)

[MPS]

atmosphere ... why get rid of the BOV ??? i had the problems before i got it

[Chuckie]

i was getting about 350 to a tank on my 2004 now i get 270 on my speed* >:(


270 when the light pops on I assume... that would make it 270/45L, the 10L leftover after light was also correct on my Mazda3 (55L Tank) 16.6L/100k WTF?

I get 360 on the dot pretty much every time @ Fuel Light which is +/- 1L of 50 (60L Tank)L....so 360/50L 13.8L/100k 50/50 City-HWY (Sunoco 94)

Your car weighs about 400LBS less...and I am boost happy thats for sure, so something seems outa place...do you check that your car turns off at 30s since you put in your turbo timer...eheheh jks


my light comes on when the trip has around 30 km remaining. I don't think there's anyway of going another 70km's when the trip says 0km remaining, or is there? assuming i get 10L/100km of course.

[PlatMS6]

atmosphere* ... why get rid of the BOV ???* *i had the problems before i got it


do some research in MS6 and MS3 forums... Mazdas don't like to vent to atmo for some reason...its better if you do recirc...
I have also seen something where the HKS was problems because of the gasket that mates the bov to the car...can't rememeber where it was that I saw it...

[Fuman]

i drive 06 2.3L auto.
i get 9.6L-9.8L/100KM and I drive rather spirted.
i had problems with fuel consumption before i installed my HIDs. ( i installed my HIDs when I had 3000KM? on the car)
it could be cause I disconnected the battery.
I use sunco 87 or shell 87.

[sp3GT]

I got a 2.3L Manual, I get over 500km per tank.

[b]

Woo hoo I just 280km to a 1/2 tank in the last 3 days!

[PlatMS6]

having that checked out monday


so whats the word?

[doughboyr6]

i usually get btween 450-500 out of a tank...most ever and running about 40kms into the reserve, i think the most ive ever seen was like 530.

[majic]

man.. we better have ONE fuel economy thread on the new site.. i get this much... i get that much.. with the light on? mgp? km/L.. l/100 bah.. i granny it.. i have an auto.. i drive in reverse.. :P

[Wild Weasel]

Last night, for a kilometer and a half or so... I got 0L/100km's after running out of gas on the 401, coasting across 3 lanes to the offramp... then down the street and up to the pump at a gas station.

Beat that! :D

[sbmonkey]

Last night, for a kilometer and a half or so... I got 0L/100km's after running out of gas on the 401, coasting across 3 lanes to the offramp... then down the street and up to the pump at a gas station.

Beat that! :D


That's awesome! Talk about your stroke of luck and good timing!

[Wild Weasel]

Last night, for a kilometer and a half or so...* I got 0L/100km's after running out of gas on the 401, coasting across 3 lanes to the offramp...* then down the street and up to the pump at a gas station.

Beat that!* :D


That's awesome! Talk about your stroke of luck and good timing!



heh. Seriously. If I hadn't been there myself, I wouldn't have believed it. My wife was giggling like a schoolgirl as we made it along the final stretch doing only a couple km/h and my friend in the back seat was convinced we were gonna have to push the car up the incline into the gas station. I was grinning ear to ear as we rolled up the ramp and right up to the pump. I barely had to touch the brake to stop. :D

[majic]

Last night, for a kilometer and a half or so... I got 0L/100km's after running out of gas on the 401, coasting across 3 lanes to the offramp... then down the street and up to the pump at a gas station.

Beat that! :D


That's awesome! Talk about your stroke of luck and good timing!


i think he's just being an attention whor3 :D

[Wild Weasel]

Last night, for a kilometer and a half or so...* I got 0L/100km's after running out of gas on the 401, coasting across 3 lanes to the offramp...* then down the street and up to the pump at a gas station.

Beat that!* :D


That's awesome! Talk about your stroke of luck and good timing!


i think he's just being an attention whor3 :D


It's part of my charm. ;D

[Skarbro]

Last night, for a kilometer and a half or so...* I got 0L/100km's after running out of gas on the 401, coasting across 3 lanes to the offramp...* then down the street and up to the pump at a gas station.

Beat that!* :D


That's awesome! Talk about your stroke of luck and good timing!


i think he's just being an attention whor3 :D


LOL You have NO idea!! ;D

[stas]

all you complaining about getting 9-10L / 100km, realize how lucky you are. either the computer in my car is messed or there is another problem (ie my driving ;D), but with my 06 GT ATX, i get 11.2L/100km, average speed to went up to 29km/h, 98% city driving.

[majic]

so i got a nice surprise from my trip to NJ/PA

what pissed me off was that one time when i filled up th eneedle didn't go past F as it normally does (1 tick) that's why i averaged it all out and still 7.54L/100km is wicked.. mind you it was mostly highway (800km at a time) plus some local driving.. driving back, at night (3rd fill) i was in a group of 5 cars switching the lead positions @ about 4000-4500RPM so it's not like i was granny driving it like MK does ;)


date fuel odometer range L/100km mpg station
66236
Nov 21, 200642.52668406047.0433.41Esso
Nov 22, 200644.63674295897.5831.04Tops
Nov 27, 200638.94679945656.8934.13Sunoco
Nov 28, 200641.58684604668.9226.36Sunoco
TOTAL167.6722247.54


ps. stock intake and winter tires..

[Wild Weasel]

Nice. The best I've ever done (while actually burning gas) was back in May of this year when I got 650 km out of 47L of gas. That's only 7.23 L/100km though. I've never managed 6.anything.

[Fuman]

damn u majic, i never get anything near ur numbers!

[sbmonkey]

damn u majic, i never get anything near ur numbers!
Drive 100% highway with about 50% of that down a mountain and you might. Drive 100% highway and downhill... I got 36 mpg through southern NY and down through PA to Philadelphia.

[majic]

damn u majic, i never get anything near ur numbers!
Drive 100% highway with about 50% of that down a mountain and you might. Drive 100% highway and downhill... I got 36 mpg through southern NY and down through PA to Philadelphia.


did you take I81 then 476 penna to 276 ;) the trunpike rocks.. NEVER seen any coppers there in the few trips i've made..

[portugal2oo6]

I just went through my first tank of gass on my 04 mazda 3 and it only got 300km on the tank. is that normal otr should i get it checked?

[queens49]

I just went through my first tank of gass on my 04 mazda 3 and it only got 300km on the tank. is that normal otr should i get it checked?


Holy smokes, that sounds bad. I get about 300km on half a tank.

[Wild Weasel]

I just got some of my worst mileage of the year on my last tank as well. Over 13L/100km.

I checked my log, and it looks like the same thing happened around this time last year. I wonder if the ECU needs some time to figure out what to do with the cold weather?

[portugal2oo6]

Why is mine sooo damn low. ???

[Skarbro]

Why is mine sooo damn low. ???


Sounds to me like you need a full tune-up. There are probably hundreds of things that can cause poor fuel efficiency. Start with the basics first - air filter, injectors...

[portugal2oo6]

i called mazda and they told me i have to keep a record of how much gas i put in for a week and how many KM"S i get out of each fill up.i thought they would know what to look for. >:(

[portugal2oo6]

sorry i meant 1 month not a week/.

[Wild Weasel]

i called mazda and they told me i have to keep a record of how much gas i put in for a week and how many KM"S i get out of each fill up.i thought they would know what to look for. >:(


They're trying to quantify your actual consumption.

Saying "I usually get x km's on a tank" is as useful as a butt dyno is for quantifying power gains. You just can't make heads or tails of it.

Once they've got some real numbers to work with, they can determine whether it's normal or needs more investigation.