Fuel Economy

[Mazda3X2]

My wife and I each have 3's and our mileage is very close.

On my 04 Sport 5 spd I averaged 7.5 L/100kms mixed driving. Her 08.5 GT auto gets about the same on the pump with her computer reading slightly higher than what I record at about 8.7.

I haven't had the Speed 3 long enough to tell anything yet, only at 700 kms. The computer is telling me 8.6. We will see....

[Iceman_F1]

My wife and I each have 3's and our mileage is very close.

On my 04 Sport 5 spd I averaged 7.5 L/100kms mixed driving. Her 08.5 GT auto gets about the same on the pump with her computer reading slightly higher than what I record at about 8.7.

I haven't had the Speed 3 long enough to tell anything yet, only at 700 kms. The computer is telling me 8.6. We will see....

I've noticed that the computer mileage is off compared to actual numbers. It's a decent estimate but it's a bit off.

[dentinger]

ive been having a hard time getting to 450/tank lately....
like, i'll shift around 2500/3000, and accerelate moderately, but still, like wth?
i just want to get to 500/tank in the city at least once.

i can do it, i'll just have to granny drive the car, and thats no fun...

[mazda lover]

Last weekend on the highway, got caught in stop and go traffic - construction on the Q.E. air on all the time and top speed 110K/H when possible. drove all week in 60 to 80 K/H zones, filled Friday managed to get in 44L couldn't squeeze in more on 530KM for a 34M/G. which is average for me, I get between 31 to 34 M/G normally.
2005 Auto 2.3

[Go_Habs_Go]

I just bought my 3 about a month ago so I've only filled up the tank 2 or 3 times (since it came with a full tank from the dealer) but I've been getting over 550km's per tank so far. On the onboard computer my average consumption is around 9 L/100km so for a 55 L tank that seems pretty accurate so far.

Wouldn't mind getting it down to 8 L/100km but I do a fair bit a city driving. It's the city driving (or heavy traffic on the highway) that just KILLS your fuel economy!!!!!!

[Flagrum_3]

I just bought my 3 about a month ago so I've only filled up the tank 2 or 3 times (since it came with a full tank from the dealer) but I've been getting over 550km's per tank so far. On the onboard computer my average consumption is around 9 L/100km so for a 55 L tank that seems pretty accurate so far.

Wouldn't mind getting it down to 8 L/100km but I do a fair bit a city driving. It's the city driving (or heavy traffic on the highway) that just KILLS your fuel economy!!!!!!

Your still in the break-in stage, so almost certainly you'll see an improvement as time goes by!! At Break-in I was avg 9-10l/100km after and presently I'm at 8-8.5/100km on average.I consistantly get about 550km per tank city.


_3

[Go_Habs_Go]

Your still in the break-in stage, so almost certainly you'll see an improvement as time goes by!! At Break-in I was avg 9-10l/100km after and presently I'm at 8-8.5/100km on average.I consistantly get about 550km per tank city.


_3

That's good to hear

Before I bought the 3 I heard some people mention that the fuel economy was so-so but I'd be pretty happy with averaging 8 L/100km.

[Naveg]

Well the results from my second fill up are in for my 2.0 ATX:

29.76 litres pumped after 425 km driven for a fuel economy of 7 L/100 KM on the nose. Not bad, not bad at all. This is 100% highway driving though.

[mazda lover]

when you post your numbers please include your engine size and tranny auto or manual...just a suggestion
Thanks

[mazda lover]

when you post your numbers please include your engine size and tranny auto plus speed 4 or 5 or manual...just a suggestion
Thanks

[b3GS]

Your still in the break-in stage, so almost certainly you'll see an improvement as time goes by!! At Break-in I was avg 9-10l/100km after and presently I'm at 8-8.5/100km on average.I consistantly get about 550km per tank city.


_3

this was my situation as well

I'm over 15,000kms now and the mileage has improved.. I do 90% city driving and get about 8.6L/100 now

[Go_Habs_Go]

this was my situation as well

I'm over 15,000kms now and the mileage has improved.. I do 90% city driving and get about 8.6L/100 now

do you have a GT (2.3L engine)? is it standard or manual?

I have a standard GT so I'm hoping to get in the 8-9L/100km range once I get through the break in period.

[Iceman_F1]

do you have a GT (2.3L engine)? is it standard or manual?

I have a standard GT so I'm hoping to get in the 8-9L/100km range once I get through the break in period.

I thought standard was just another term for manual. Since most cars come standard as manual unless you specify automatic in which case they charge extra.

In any case, I'm currently just above 12,000km since May and I tend to avg. between 8 and 8.5L/100km.

My best so far I think was a 7.3L/100km...but that was about 95% highway.

[Go_Habs_Go]

I thought standard was just another term for manual. Since most cars come standard as manual unless you specify automatic in which case they charge extra.

D'OH!!! You're absolutely right, I just didn't read your original post where you mentioned you had a manual (or standard, same thing )

[Cross]

I drive a 2008.5 2.3L manual transmission, I do about 11L/100 km on the city with and without ac on.. Will the fuel economy improve after break in period?

[Iceman_F1]

I drive a 2008.5 2.3L manual transmission, I do about 11L/100 km on the city with and without ac on.. Will the fuel economy improve after break in period?

It should. Then again, it depends what kind of mix of city/hwy you do. To get to my job, I do about 95km/day in terms of driving. about 70% of that is on the hwy. So for me, it's pretty easy to average somewhere in the 8's in terms of L/100km. Then again, I don't use AC and I try not to gun it off a red light (most times XD).

Mileage will be different for everyone because of driving habits, route taken, and a whole other bunch of factors.

[Mafty]

ya my milage is all over, it seems like the past week i havent used the AC at all since the weather was frigid and it was the first time i got mileage over 600km to a tank. usually i only get around 500-550. so it seems like the AC makes a bit of a difference, i still avg 9.1L/100km which is not very good for a 5spd

[06Touring3]

before i installed my intake i was avg'ing 8.6L/100km

i'll have to see what i am now since hitting higher RPMs is much easier

[Iceman_F1]

before i installed my intake i was avg'ing 8.6L/100km

i'll have to see what i am now since hitting higher RPMs is much easier

I was avg'ing roughly the same. First fillup after the intake, I was at 8.1L/100km. While not a HUGE difference, every little bit helps to me XD

I'll just have to wait and see if it stays the same.

[Go_Habs_Go]

I was avg'ing roughly the same. First fillup after the intake, I was at 8.1L/100km. While not a HUGE difference, every little bit helps to me XD

I'll just have to wait and see if it stays the same.

I'm confused...your gas mileage improved after installing a CAI??

[Iceman_F1]

I'm confused...your gas mileage improved after installing a CAI??

Yeah...why wouldn't it? From everything I read, if your driving habits remain the same, people were saying that the mileage would be better as with more air coming in, the engine has less work to do..which is true since I notcied the RPM lower with the CAI. Not a HUGE difference...about 500 revs? So either I drove "better" than I did before which isn't really true since I drove about the same as before...or the CAI helped that little bit. Only way to find out that this wasn't a fluke is to figure it out over many fillups. But normal to and from work only, before I would normally avg. 8.6L/100km. This time, it was 8.1 and the KM remaining always added up to be better mileage than it was getting before.

Normally, after I filled up, the KM remaining was around 600km. Then, it would go down quite a bit and I would normally fill up just over 500km with about 40km left according to it. The first fillup after I installed the CAI (drove 1/2 tank without it and then 1/4 tank with it), it said 640km remaining and when I filled up, I had drove about 532km with the remaining km at 40. So difference is about right...and if the trend continues, that's about 40km more per tank.

[Go_Habs_Go]

Yeah...why wouldn't it? From everything I read, if your driving habits remain the same, people were saying that the mileage would be better as with more air coming in, the engine has less work to do..which is true since I notcied the RPM lower with the CAI.

Interesting! I just naively assumed that installing a CAI would somehow make your engine consume more gas. I never really thought it through.

Or maybe people just tend to drive their cars harder once they have a CAI installed?

[Iceman_F1]

Interesting! I just naively assumed that installing a CAI would somehow make your engine consume more gas. I never really thought it through.

Or maybe people just tend to drive their cars harder once they have a CAI installed?

Oh, don't get me wrong. That's what most people said. And I noticed that too. When I REALLY step on the gas, I noticed when watching the KM remaining and consumption, it goes down FAST...but if you are conservitive and don't do it often, it seems to help a bit.

[el_rodento]

I just bought an 09 Mazda3 GS 5spd. My trip computer is reading 7.4L/100km. My commute is about 60% city 40% hwy. I'm pretty happy with it so far!

[Go_Habs_Go]

I just bought an 09 Mazda3 GS 5spd. My trip computer is reading 7.4L/100km. My commute is about 60% city 40% hwy. I'm pretty happy with it so far!

That's an excellent mileage especially for a brand new engine!