Anyone getting great MPG with the 2012 Skyactiv 3?

[walkabout]

Just found this article http://www.thetruthaboutcars.com/201...onomy-numbers/ Seems the expert with the computer has confirmed my fears. "On the highway, though, the manual transmission car fared no better than the automatic. Speed is a big factor. First, air resistance rises at the cube of velocity. Second, engine speed increases in lock step with vehicle speed, and at a certain rpm efficiency begins to fall off dramatically. Driving at a steady 78 mpg, the trip computer reported 30.6 (again close to my nearly decade-old Protege5). Drop ten mph, and the number ticked up to 31.3. Drop down to 62, and it took a larger jump, to 33.6. Perhaps at the double nickel the promised 37 would materialize—but I just can’t drive 55! The implication is clear – the EPA highway figure is only going to happen at speeds much lower than most of us drive."

Strange that the skyactiv is rated at 39mpg hwy in the US, that is about 6L/100km. Wonder why the Canadian site says 4.9, is this a different type of skyactiv? If 6L/100km is the real thing, then I would be happy enough with the 6.7 I've been getting.

So, I'm going to give up trying to get better fuel economy by driving so carefully. It makes my blood boil being passed by trucks, I'll forgo the extra fuel economy to save my blood pressure LOL I will be calling Mazda Canada for an explanation. I am hoping for a debit card, as I feel so cheated by false advertising

And this will probably be my last Mazda, and 4cyl car for that matter. I've had mostly cars like Mustang GT (please don't hold that against me), Nissan Armada, Acura 3.2CLS, so I'm more used to power and not expecting good economy.

[eSS]

Just found this article http://www.thetruthaboutcars.com/201...onomy-numbers/ Seems the expert with the computer has confirmed my fears. "On the highway, though, the manual transmission car fared no better than the automatic. Speed is a big factor. First, air resistance rises at the cube of velocity. Second, engine speed increases in lock step with vehicle speed, and at a certain rpm efficiency begins to fall off dramatically. Driving at a steady 78 mpg, the trip computer reported 30.6 (again close to my nearly decade-old Protege5). Drop ten mph, and the number ticked up to 31.3. Drop down to 62, and it took a larger jump, to 33.6. Perhaps at the double nickel the promised 37 would materialize—but I just can’t drive 55! The implication is clear – the EPA highway figure is only going to happen at speeds much lower than most of us drive."

Strange that the skyactiv is rated at 39mpg hwy in the US, that is about 6L/100km. Wonder why the Canadian site says 4.9, is this a different type of skyactiv? If 6L/100km is the real thing, then I would be happy enough with the 6.7 I've been getting.

So, I'm going to give up trying to get better fuel economy by driving so carefully. It makes my blood boil being passed by trucks, I'll forgo the extra fuel economy to save my blood pressure LOL I will be calling Mazda Canada for an explanation. I am hoping for a debit card, as I feel so cheated by false advertising

And this will probably be my last Mazda, and 4cyl car for that matter. I've had mostly cars like Mustang GT (please don't hold that against me), Nissan Armada, Acura 3.2CLS, so I'm more used to power and not expecting good economy.

So why bother going with a skyactiv in the first place? If the 40MPG doesnt please you I dont know what will. Also take into account the fact the weather is getting colder now, that will take a toll on fuel mileage as well. If you used to the above stated vehicles you should have went with the 2.5 GT. You'll get more power and fuel mileage much better than you above stated vehicles.

Good luck with that debit card

[Booter22]

ok so i dont know about getting a debit card, i would think you are taking that a bit to far, but you should really be talking to your dealer about this. its as simple as this. 2012 mazda 3 - search on the mazda system for poor fuel economy and then you get this of a list of possibles:

2012 - Mazda3 - Engine
NO.14 POOR FUEL ECONOMY [SKYACTIV-G 2.0]
14
POOR FUEL ECONOMY
DESCRIPTION
•Fuel economy is unsatisfactory.
POSSIBLE CAUSE
•Engine cooling system malfunction
•PCM DTC is stored
•Erratic signal to PCM
■APP sensor or related circuit malfunction
■ECT sensor No.1 or related circuit malfunction
■IAT sensor No.1 (integrated in MAF sensor/IAT sensor No.1) or related circuit malfunction
■MAF sensor or related circuit malfunction
■MAP sensor or related circuit malfunction
■TP sensor or related circuit malfunction
■Intermittent open or short circuit MAF sensor, APP sensor, TP sensor
•Improper operation of cooling fan control system
•Improper operation of A/C system
•Incorrect fuel injection timing
•Fuel injector malfunction
•Short to power supply in wiring harness between ignition switch terminal A and PCM terminal 2H
•Contaminated air cleaner element
•Air leakage or restriction in intake-air system
•Poor fuel quality
•Improper coolant level
•Clutch slippage (MTX)
•Improper ATF level (ATX)
•Brake dragging
•Tire air pressure malfunction
•Vacuum leakage
•Fuel leakage
•Contamination in MAF sensor
•Tires, wheels (large size)
•Change of intake air system components and exhaust system components
•Engine operation time is longer than traveled distance
■Vehicle is driven in congested traffic frequently
■Left idling for long periods
•Amount of fuel injection increases
■Overloaded
■Frequent acceleration/deceleration
■Frequently driving on ascending roads
■Travel distance per one drive is short (amount of time for warm-up is long during engine operation)
■Improper load signal input
•Improper A/C request signal
•Driver forgets to switch electronic device off
•Electronic device is frequently used with engine stopped (no power generation)
•Vehicle left undriven for long periods
•Large amount of parasitic draw (especially after-market electronic devices)
•Erratic or no signal from CMP sensor
■Loose installation
■Damaged trigger wheel (intake camshaft and/or exhaust camshaft)
■Open or short circuit in related wiring harness
•Erratic signal from CKP sensor
■Loose installation
■Damaged trigger wheel (crankshaft pulley)
■Open or short circuit in related wiring harness
•Inadequate fuel pressure (high-pressure side)
■Fuel pressure sensor malfunction
■High pressure fuel pump malfunction
■Spill valve control solenoid valve control circuit malfunction (damage to driver in PCM caused by short circuit to ground system)
■Spill valve control solenoid valve (built-into high pressure fuel pump) malfunction
■Relief valve (built-into high pressure fuel pump) malfunction
■Fuel line restricted or clogged
■Fuel pump unit malfunction
•Improper engine compression
•Improper intake valve timing due to timing chain jumping
•Improper exhaust valve timing due to timing chain jumping
•Spark plug malfunction
•Exhaust system and/or TWC restriction
•PCV valve malfunction
•Injector driver (built-into PCM) malfunction

so i would speak to the dealer and ask them to inspect the items to ensure the vehicle is operating correctly. if for some reason you are declined then i would contact mazda canada. If these items check out ok the dealer may want to put a diagnostic box in the vehicle to monitor how it is being operated.

hope this helps.

[walkabout]

As soon as I saw the Mazda ad stating 4.9L/100km which is 48US mpg, I went and bought the car. I was contemplating the Prius and the Golf TDI, but never went to the dealer, because I trusted the Mazda ad, thinking i would get close enough to their claimed economy. The car is a pretty good little car, and it is quick enough when i need it to be. I have no other complaints besides the fuel economy. I'm only getting 35mpg on average, doing just highway, that is NOT great mileage for such a small car. How was I supposed to know it would be so fragile and suffer such a drop in economy with regular driving. I wonder why everyone here is so accepting of what I consider a major discrepancy?

[Booter22]

again it all comes to how you drive you need to understand how the car is tested. but that said 35mpg is pretty good, right now im getting about 29.8MPG. im happy with that, but take the info what i provided to the dealer and see if they can further assist and help you.

[loki]

threads merged

[Booter22]

threads merged

thank you. would a re title of Skyactives and fuel economy be fitting?

[walkabout]

Gee, I'm learning important lessons here. I just went on Toyota canada vs Toyota US sites. US rates the prius 48mpg hwy (4.9L/100km). Canada rates it a whopping 3.8L/100km (74mpg). A car testing site said they got about 50mpg with the Prius. So i guess if you want to know REAL fuel economy, go to the US sites. And Mazda is off the hook and forgiven, the real issue is with Government of Canada/Transport Canada Test Methods. They're nuts! Sorry to fill up so much space here, but I had to get to the bottom of this...

[walkabout]

Found this link too http://www.tc.gc.ca/eng/programs/env...cedure-650.htm There's lots of reading on the tc site on testing, surf around to see it all. The US uses a more complete test method, including with AC, fast driving etc.

[Edward_Zoom]

Mazda claims the 2012 Mazda 3 skyactiv is only 15 per cent more efficient than 2011. I never expect a big jump considering it is not even a hybrid to begin with. Don't forget, this car doesn't have the full implementation skyactiv: the lighter chasis and manifold 4-2-1 aren't installed.

However, its handling and power is tops in its class.

[captobvious75]

Should have bought a diesel. End thread.

[Edward_Zoom]

Should have bought a diesel. End thread.

Managed to get 153km on one bar.

The car has more than 2000km already.

I started the car and it reads 153km and one bar missing only. Soon afterwards, second bar gone withn 5 minutes or so.

[Seshan]

Managed to get 153km on one bar.

The car has more than 2000km already.

I started the car and it reads 153km and one bar missing only. Soon afterwards, second bar gone withn 5 minutes or so.

I did 170km today on 1 bar, but how the bars work is weird, Say if I did 120km with full bars still, then shut the car off then turned it back on, I think it would drop a bar. Bar's aren't really a good indicator of gas mileage, Hell the fill gas sign comes on with about 12l in a tank, you could do almost 150 km with that.

[Edward_Zoom]

I did 170km today on 1 bar, but how the bars work is weird, Say if I did 120km with full bars still, then shut the car off then turned it back on, I think it would drop a bar. Bar's aren't really a good indicator of gas mileage, Hell the fill gas sign comes on with about 12l in a tank, you could do almost 150 km with that.

I fill up the gas tank until i get the first click. This is how I get an measurement of the consumption of gas.

Before I fill up, I read the odometer reading and fuel pump reading and calculate.

But I started the car this morning and I saw 153km with one bar gone. Maybe it is the brand of gas. I fill up using PetroCanada instead of Esso.

[Booter22]

fuelly is the best way to measure consumption.

[mazda33]

I have been getting about 13.7km/L which is around 32mpg. I am not thrilled by this but it's not too shabby either. I drive over 100 only about 40% of the time, and it's the city driving which is hurting my mpg.

[Booter22]

I have been getting about 13.7km/L which is around 32mpg. I am not thrilled by this but it's not too shabby either. I drive over 100 only about 40% of the time, and it's the city driving which is hurting my mpg.

you so you dont mean 13.7L/100 km?

[mazda33]

you so you dont mean 13.7L/100 km?

No because that would mean I am getting 100/13.7 = ~7.3km per L which is not true.

I get a solid 13-14km for every liter.

I usually fill up approx 43-44L on a consistent basis (1 bar remaining) and trip computer shows between 580-600 on a consistent basis. Have done about 8 fill ups so far.

[walkabout]

I just started using Fuelly, put my first fill up in there. my car now has just over 20,000km, and 2 oil changes. got 815km on one tank, 52L fillup, 6.4L/100km. so that was a bit better economy than what i had been getting, 6.7L/100km. Remember, 6L/100km (EPA value) is about the most we're going to get in real world highway driving. I'm much happier with this latest result, doing 110kph isn't so bad either. Hope it lasts...

[Booter22]

No because that would mean I am getting 100/13.7 = ~7.3km per L which is not true.

I get a solid 13-14km for every liter.

I usually fill up approx 43-44L on a consistent basis (1 bar remaining) and trip computer shows between 580-600 on a consistent basis. Have done about 8 fill ups so far.

are you caluclating this yourself or using say fuelly to show your consumption.

use this - www.fuelly.com

best site for tracking. put in your info on full fuel ups from your bill and much easier to track and show others what your car is doing. you can put notes as well ( 94 used, 89 used. so on)

[loki]

you so you dont mean 13.7L/100 km?

10L/100km = 1L gives you 10km

I'm gonna leave that there and let you check your math again lol

13.7L/100km is speed3 city driving territory

[Booter22]

10L/100km = 1L gives you 10km

I'm gonna leave that there and let you check your math again lol

13.7L/100km is speed3 city driving territory

yea really..

No because that would mean I am getting 100/13.7 = ~7.3km per L which is not true.
I get a solid 13-14km for every liter.
I usually fill up approx 43-44L on a consistent basis (1 bar remaining) and trip computer shows between 580-600 on a consistent basis. Have done about 8 fill ups so far.

and if your getting 14km per L would mean you get about 572km per tank based on a 44L fill up.

i might be off on my math. but would it not be 44L filled / 572 km driven *100 = fuel econ for L used so in this case it would be 7.69L per 100KM.

this is the same way fuelly maths out L/100KM as well so your actually getting 7.69L/100 KM

loki check that and give me a gold star if correct. if correct Mazda33 use that formula to see what your getting per tank.

[Aitch]

My last tank was my worst - 10L/100km. Of course it was almost all city, short trips hooning around, in the cold.

[Edward_Zoom]

No because that would mean I am getting 100/13.7 = ~7.3km per L which is not true.

I get a solid 13-14km for every liter.

I usually fill up approx 43-44L on a consistent basis (1 bar remaining) and trip computer shows between 580-600 on a consistent basis. Have done about 8 fill ups so far.

What brand of gas are you using and grade?

[mazda33]

What brand of gas are you using and grade?

I don't normally have a preference but there's a SHell close to my house and all my fill ups have been from there. I use 87 octane; the basic one.