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Discussion Starter · #1 · (Edited)
If I drive conservatively ... I can achieve at most ~500 KM / tank .. im actually a little disappointed by this number.. was getting over 600 km / tank with my Yaris.. and I was able to consistently do 130 km /h of highway driving to do this (to and from work).. with the fiat im getting 500 and limiting myself to 110 .. i havent tried eco:Drive yet but I cant imagine it would make a huge difference.. tried both 89 91 and 94 octane (sunoco) .. 94 is the only one that didnt have any ethanol .. no difference.. all were ~500 km per tank..

Could it be the cool canadian climate? .. I know you use more fuel in colder weather.. but thought it would be more efficient as well..
 

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Discussion Starter · #4 ·
I don't have an answer for you. I'm averaging 44mpg since switching to 93
I guess I should have mentioned im on an auto.. and im sure that does make a difference.. but in any case.. can I ask about your shift pattern / points.. i only shift in the auto.. and as I mentioned.. conservatively .. I shift every 10 km /h .. so im in second by around 15.. 3rd by 25.. 4th by 35 etc.. rpm wise it translates to shifting between 2 and 2500 rpm
 

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kms per tank is a poor estimate of fuel economy. did your yaris have the same size tank? was it auto? I estimate your getting around 7.4 litres/100kms based on 500kms with a 40l tank asuming you use around 37litres. That seems reasonable givin your car is auto. I avg around 5.5l/100 with a 5 spd. around 115kms/hr say %70 highway. I think the auto in this car makes a big difference.
 

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Discussion Starter · #7 ·
kms per tank is a poor estimate of fuel economy. did your yaris have the same size tank? was it auto? I estimate your getting around 7.4 litres/100kms based on 500kms with a 40l tank asuming you use around 37litres. That seems reasonable givin your car is auto. I avg around 5.5l/100 with a 5 spd. around 115kms/hr say %70 highway. I think the auto in this car makes a big difference.
yaris was auto and 11.1 gallons vs 10.5 for the fiat.. not much of a difference.. but youre right around 7.4 L / 100kms .. the yaris definitely used less per 100. Im averaging around 32 mpg right now with the fiat.. but was around 40 with the yaris.. definitely noticeable.
 

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yaris was auto and 11.1 gallons vs 10.5 for the fiat.. not much of a difference.. but youre right around 7.4 L / 100kms .. the yaris definitely used less per 100. Im averaging around 32 mpg right now with the fiat.. but was around 40 with the yaris.. definitely noticeable.
Well at least now you don't have to drive a Yaris:D just kidding. I really think it the auto in the 500. I have noticed others on this fourm with similar mpg's to yours and the manuals always seem to do quite a bit better.
 

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I live in Halifax and also have an automatic. My driving is about 50/50 highway/city. I tried different speeds on the highway, 100-125 Kph, and managed a best fuel economy of 41.5 mpg. I get about 550 km per tank. My wife has a 5 speed manual, haven't checked hers yet to see the difference.


Sent from my Autoguide iPad app
 

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serious.. me thinks us canadians are getting it up the *** on the fuel we use :mad:
I would agree with that line of thinking, I hate when I have to go to Canada for work cause I hate trying to re-figure out the whatever for Litre. :) Thankfully I dont have to go to often and when I do my company does give me some reimbursement.
 

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Auto

I have an auto as well and average 7.2 and I don't baby it on the highway.
 

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Oddly enough, I traded a Yaris automatic for the FIAT. I'm getting nearly identical mileage with only 500 miles on the FIAT. About 34mpg. I suspect the FIAT will improve some as it breaks in more.
 

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I have about 2000 miles on my Sport 5 speed manual and I am getting around 38.5 mpg. I have been using ECOdrive and the feedback I am receiving tells me I shift too late. I am pretty conservative with my shifting so I am a bit confused about
the ECOdrive resommendation of shifting sooner. If I shift any sooner the car will lug. I am hoping the mileage will improve a bit more once the car breaks in more and the weather warms up. I do a mix of hwy and suburban driving.
 

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I have about 2000 miles on my Sport 5 speed manual and I am getting around 38.5 mpg. I have been using ECOdrive and the feedback I am receiving tells me I shift too late. I am pretty conservative with my shifting so I am a bit confused about
the ECOdrive resommendation of shifting sooner. If I shift any sooner the car will lug. I am hoping the mileage will improve a bit more once the car breaks in more and the weather warms up. I do a mix of hwy and suburban driving.
You can shift the 1.4 liter multiair all day long at 1,800 to 2,000 rpm without lugging it as long as you don't try to accelerate TOO agressively after the shift. Of course the other impatient Americans behind you will be incensed. Also you will increase your gas mileage noticeably if you anticipate traffic and let off the throttle rather than using the brakes. When the throttle is closed the engine is getting very little to NO gas.

Good Luck!
 

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Thanks for your response SeaDawg. This may sound like a stupid question but does shifting at 1,800 to 2,000 RPM do any hard to the engine or transmission? The car seems to labor to reach speed at such a low RPM.

Thanks!
 

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Thanks for your response SeaDawg. This may sound like a stupid question but does shifting at 1,800 to 2,000 RPM do any hard to the engine or transmission? The car seems to labor to reach speed at such a low RPM.

Thanks!
No, the multiair system allows the engine to develop more torque at lower rpm than most other 4 cylinder engines. I have never felt the engine was laboring unless I was trying to accelerate too aggressively. If you feel that it's laboring try shifting at 2,300 to 2,500 rpm and see what it that improves it for you. Most 4 cylinder engines will buck and jerk if you shift at those low engine speeds, but I have never encountered that shifting at 1,800 to 2,000 rpm with the multiair.
 

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I've only got about 400 kms on my 5 spd. My driving has been mostly commuting, in town, but not much stop and go. The computer and my manual measurement both come out to 8.0 l/100 kms- 35 mpg imperial, so about 29.5 per US gallon. Does this seem consistent with what others are getting? I'm driving fairly gently (new car), and I'm hoping it will creep up a bit as the car gets more miles on it. BTW I did 370 km on my first tank of gas, and it still had 1/4 tank left.
 

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What I have heard is that mileage improves after about 4000 miles. Also, I understand that using the 91 octane improves mileage too. Most gas stations here in New Jersey seem to sell either 87 or 93.
 

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We are averaging 33mpg in combined driving over 8k miles in our 500c 5 spd. Our last highway trip we were at about 39.5 mpg average. I have tried a few different driving styles including really trying to nurse every mpg out of the car, to just driving the heck out of it. It seemed to only have an impact of maybe 1.5 to 2 mpg at most. We only drive in Sport mode by the way. I have also experimented with 87, 89 and 92 octane without seeing a significant difference, so I usually fill up with 89. I did notice that my mileage definitely got better by about 3-4 mpg as I put a few thousand miles on the car. Most automotive engine specialists today would claim that modern engines don't need a break-in period due to precision tolerances (gears, rings, valve guides, etc.), but I definitely noticed the difference in power and mileage. Just as a sidenote, we are running 205/40 R17 tires at 38PSI, which probably does not do the MPG any favors.
 

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We just turned over 2300 miles on our 5-spd Pop C - since purchase (Dec 2011) we have an overall average of 32.5 mpg. It is worth noting that our average speed driven over that time is 27.5 mph! Needless to say, this is primarily an in-town, short-trip, commuter car. The wife & I are pretty tickled with this mileage as her previous car - 2002 WRX 5-spd - averaged about 18 mpg for her usual use.
 
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