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Technical Fiat 500 1.4 fuel efficiency record

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Technical Fiat 500 1.4 fuel efficiency record

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ahmett

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Well guys the time finally came where I managed to drive fuel efficiently over the course of a week mostly around the city on one tank of fuel. 6.7l/100 km and over 600 kilometres on a 41 liter tank of fuel! That should be my record on the 1.4 and I don't think I can beat it over a whole tank in mixed driving conditions. Not in one go in 5th gear at 30 mph!

If anyone with the same engine beats it let me know!
 

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My fuel consumption with my first 500 Sport (2010 1.4 Dualogic) matched yours - it was always 7.0L/100km and very difficult to get below that.

My current 500 (2008 Lounge 1.4 Dualogic) has consistently returned 6.3L/100km on average, town and country. I suppose it's only a 10% difference but just goes to show the variation between cars of apparently the same specifications.

-Alex
 

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Last edited:
alexGS said:
...to prove it needs a second photo ;)
(I can only upload one photo per post)

Just to be clear, that's not 995.3km on a single tank, but it proves that 6.3L/100km is for standard mixed driving over 995.3km (not some single careful trip).

-Alex
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wow pretty good! problem is I drive in town everyday. if i drove out of town i think 6.0 is reachable, which i consider the lowest possible in town = )

My average is around 7.5l/100 km with 100% in town driving. Fair enough I suppose, with the 195 tires I was doing around 8.3 and in the summer 9.0 with ac on full blast = )
 
ahmett said:
wow pretty good! problem is I drive in town everyday. if i drove out of town i think 6.0 is reachable, which i consider the lowest possible in town = )

My average is around 7.5l/100 km with 100% in town driving. Fair enough I suppose, with the 195 tires I was doing around 8.3 and in the summer 9.0 with ac on full blast = )
Click to expand...

Unfortunately I don't have any long term results to share as the messing with my instrument cluster has reset the data every time.

Normally on the town driving I get about 30mpg from my car which I think is terrible for a 1.4 litre engine.
 
Pathaleon said:
Unfortunately I don't have any long term results to share as the messing with my instrument cluster has reset the data every time.

Normally on the town driving I get about 30mpg from my car which I think is terrible for a 1.4 litre engine.
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yeah i think its due to the fact that you have to rev it to move anywhere = )
 
Pathaleon said:
I may or may not redline it sometimes :whistles:

I find if you accelerate hard it doesn't make too much difference to the mpg if accelerating normally.
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in first gear fuel cutoff is around 6,750 rpm for some reason. i think in the 4th to 3rd gear downshift i managed 7,250 RPM. That must be the highest fuel cutoff point = )
 
ahmett said:
in first gear fuel cutoff is around 6,750 rpm for some reason. i think in the 4th to 3rd gear downshift i managed 7,250 RPM. That must be the highest fuel cutoff point = )
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I'm pretty sure I got into the 7k realm in 2nd gear. The car does seem really slow though, I like the car I just really want an abarth now.
 
Pathaleon said:
I'm pretty sure I got into the 7k realm in 2nd gear. The car does seem really slow though, I like the car I just really want an abarth now.
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well it is quicker than both the 1.2 and the TA 85 = ) you just need to keep it above 4,000 rpm at all times = )
To be honest I am enjoying my time with it, the days of NA engines are more and more limited. Practically every car bigger than the Fiat 500 has Turbo engines now.
 
Pathaleon said:
The only thing that really sucks about the 1.4 is the horrendous turning circle. Our BMW X5 puts it to shame.
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yes thank god i got my licence in the UK and had ample time to practice my three point turns = ) it does get quite hairy when you have to do illegal u-turns though, i try and avoid them to be honest !
 
ahmett said:
yes thank god i got my licence in the UK and had ample time to practice my three point turns = ) it does get quite hairy when you have to do illegal u-turns though, i try and avoid them to be honest !
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I'm assuming the abarth doesn't have the same issue seeing as it's a 5 speed. I'm yet to test drive one!
 
Pathaleon said:
I'm assuming the abarth doesn't have the same issue seeing as it's a 5 speed. I'm yet to test drive one!
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no sorry nothing to do with the gearbox as my dualogic is 5 speed. i checked, it is 10.8 m just like the normal 1.4 is the abarth. sorry = (
 
Best economy reading for my 1.4 Sport has been 41.2 mpg, so Ahmett beats me! I've never had a reading lower than 38.5 mpg. I definitely noted an improvement in economy when I changed the Fiat-specified copper plugs for the Denso IXU22 iridiums.

The old-school 1.4 16v isn't for everyone but I love it's character - so willing to be revved. You need to keep busy with the gearbox and get it above 4000 rpm to keep it cracking along at a decent pace. In my experience it's a very reliable unit and I've had no problems at all. Yes, the turning circle is hilarious for such a small car, I think it's due to the position and orientation of the 6-speed gear box relative to the front axle.
 
MarginWalker said:
Best economy reading for my 1.4 Sport has been 41.2 mpg, so Ahmett beats me! I've never had a reading lower than 38.5 mpg. I definitely noted an improvement in economy when I changed the Fiat-specified copper plugs for the Denso IXU22 iridiums.

The old-school 1.4 16v isn't for everyone but I love it's character - so willing to be revved. You need to keep busy with the gearbox and get it above 4000 rpm to keep it cracking along at a decent pace. In my experience it's a very reliable unit and I've had no problems at all. Yes, the turning circle is hilarious for such a small car, I think it's due to the position and orientation of the 6-speed gear box relative to the front axle.
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yes they seem bulletproof! the strongest part of the car for sure. i do not see this engine having any problems as long as you have coolant, oil and decent spark plugs in it!

for me my eco tires made a huge difference to the fuel economy vs the old ones, a good 10% increase in efficiency due to less drag. My current tires have an EU C for fuel efficiency vs. F in my old tires.
 
Lol, that's really good!
I can get about 1-16.5 maybe 18 KM per liter but only when driving on nonSport mode (and get lots of horning in the background for being slow as sh**), when i turn it on the fuel usage gets higher like the Abarth hah.
I mostly drive in the city, so i get about 1-14 but i like to rev the car alot so i get most of the time 1-12.5

Outside the city and on highways i can get 1-20km per liter

BTW Ahmett how's the Dualogic since the replacement? did you checked it for leaking at the dealership?
Mine has a weak battery so it sometimes causes for slower movment from the robot
 
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