General TwinAir Thread (including MPG)

[tutto]

I was expecting the Twin Air to be more economical than what I've been reading here.

As a comparison my Alfa 135 Multiair (Twin air with two more cylinders) averages 40 -45 MPG and can top 50+ on a 60 MPH run.

 

[306maxi]

I was expecting the Twin Air to be more economical than what I've been reading here.

As a comparison my Alfa 135 Multiair (Twin air with two more cylinders) averages 40 -45 MPG and can top 50+ on a 60 MPH run.

A mito is not a twinair with 2 more cylinders, it's a completely different engine.

 

[tutto]

They're both Multiair. That's how they achieve their efficiency and economy.
Just expected the Twinair to have fantastic economy given all the hype!

 

[306maxi]

They're both Multiair. That's how they achieve their efficiency and economy.
Just expected the Twinair to have fantastic economy given all the hype!

Yes, but you said that the Mito was a twinair with 2 more cylinders which isn't correct as the Twinair is a completely different design to the FIRE based engine in the Mito.

As has been said over and over and over and over again, we need to have more twinair engined 500's on the forum before we go making judgements on figures. Engines not run in yet blah blah weather cold blah blah people not used to engine characteristics yet blahdey blah.......

 

[tutto]

I'm not arguing about the difference in design between the TwinAir and Multiair engines. Just the fact that they share the same technology that makes them economical.

So why isn't the 500 TwinAir streets ahead in economy terms than my Alfa 135 which given it's extra performance should use more fuel?

The comment about 'not run in' and 'cold weather' just doesn't apply to any great degree with todays 'modern' engine tolerances.

 

[306maxi]

I'm not arguing about the difference in design between the TwinAir and Multiair engines. Just the fact that they share the same technology that makes them economical.

So why isn't the 500 TwinAir streets ahead in economy terms than my Alfa 135 which given it's extra performance should use more fuel?

The comment about 'running in' and engines 'loosening up' just doesn't apply to any great degree with todays 'modern' engine tolerances.

Because the engines need to be run in, people need to get used to them and the weather needs to warm up regardless of what you say about modern engines not needing to be run in...........

 

[udtrev]

Because the engines need to be run in, people need to get used to them and the weather needs to warm up regardless of what you say about modern engines not needing to be run in...........

I agree with Maxi, the figures will be much better once the engines have a few 1000 miles on them and the weather is warmer

 

[tutto]

Engines do not need to be 'run in' nowadays, that's a thing of the past.

 

[mjsmke]

My dealer told me the engine doesnt need to be run in but it will loosen up after 100 miles or so. He also said not to under rev it. Instead drive it quite hard while its new.

 

[306maxi]

it will loosen up after 100 miles or so.

That's exactly what I'm talking about, though from experience the engine doesn't completely loosen up till about 7-8k miles.

But whatever, Tutto is right, the multiair turbo engine in the Mito is just 2 twinairs taped together, the twinair engine is rubbish and uneconomical and cold weather has no effect on fuel economy

 

[cjc156]

Mine is beginning to show an improvement, my wife took it out on Sat and it came back with 43 mpg on the dial.

I keep saying though I am not gonna get involved in this debate, as the car is still new for flips sake.

 

[zanes]

The comment about 'not run in' and 'cold weather' just doesn't apply to any great degree with todays 'modern' engine tolerances.

 

[D4nny8oy]

*Sigh*, Yes the traditional "running-in" where you needed to change the engine oil at 500 miles, 1000 miles and 1500 miles is a thing of the past, but engines still take time to bed-in and loosen up (hence why the official fuel economy figures are carried out on engines that have covered at least 1800 miles).

Take two identical new engines, one thrashed, one driven to the shops and back by Granny- will they perform identically after 10,000 miles? No, because they have bedded-in and loosened-up differently, despite modern engineering tolerances.

As an ex-Dealer Tech I can confirm the substantial difference in performance and freedom/willing to rev between a new PDI vehicle and one that's had it's first 18k service.

 

[tutto]

TwinAir fuel consumption is still rubbish

 

[D4nny8oy]

twinair fuel consumption is still rubbish :d

 

[Super Uwe]

*Sigh*, Yes the traditional "running-in" where you needed to change the engine oil at 500 miles, 1000 miles and 1500 miles is a thing of the past, but engines still take time to bed-in and loosen up (hence why the official fuel economy figures are carried out on engines that have covered at least 1800 miles).

Take two identical new engines, one thrashed, one driven to the shops and back by Granny- will they perform identically after 10,000 miles? No, because they have bedded-in and loosened-up differently, despite modern engineering tolerances.

As an ex-Dealer Tech I can confirm the substantial difference in performance and freedom/willing to rev between a new PDI vehicle and one that's had it's first 18k service.

From a Fiat customer perspective, I can vouch for that as well. I had a 1.2 Lounge as a courtesy car over Christmas and to be honest I couldn't believe how tight and restricted it was compared to ours - the power delivery seemed so much slow, and in addition the gear change was much tighter as well.

The main thing I remember was the pulling power in 2nd - in our car it's surprisingly good and means you can get up to 30-40 in a relatively short space of time. With the courtesy car, it just seemed much more laboured and slow.

I guess as an owner the improvement is gradual over the first 5-10k, so you don't necessarily realise quite how much the engine improves until you compare it with one that only had a few hundred miles.

I'd assume therefore the TwinAir will be fairly similar - looking forward to booking a test drive before too long anyway!

 

[grimwau]

Well, this will be my last post regarding fuel consumption as the car has now been sold. Not due for a fillup so I will just use the average MPG over the whole 823 miles the car covered whilst under my ownership.

When I left my house to go and collect the new car the Trip B average was 37.2mpg and when I got to the dealers it had improved to 37.5MPG. Still pretty low but showing signs of improvement, however, the driving experience was dire.

The shift indicator was telling me to change up at under 30MPH and then when I did and it started to labour it then ordered me to downshift, lol.

Hope all you other owners fare better and I'm sure that if rallycinq ever gets his car we should see some true figures. I'm particularly interested in his comments as we both previously had the 1.3MJT so any comparisons will be read with interest.

 

[danijel]

Why did you sell twinair??? I was really interested in your posts about him. Not only fuel consumption. Too baaaad!!!

 

[rallycinq]

Hope all you other owners fare better and I'm sure that if rallycinq ever gets his car we should see some true figures. I'm particularly interested in his comments as we both previously had the 1.3MJT so any comparisons will be read with interest.

Still waiting to hear if I am getting one, however I managed to get 45mpg from a 9 mile old example on test drive.

Just a thought.

I would guess that the twin air fuel consumption test would have been done with a pop on 14 inch steelies wearing eco tyres.

Cheers

D

 

[306maxi]

Well, this will be my last post regarding fuel consumption as the car has now been sold. Not due for a fillup so I will just use the average MPG over the whole 823 miles the car covered whilst under my ownership.

When I left my house to go and collect the new car the Trip B average was 37.2mpg and when I got to the dealers it had improved to 37.5MPG. Still pretty low but showing signs of improvement, however, the driving experience was dire.

The shift indicator was telling me to change up at under 30MPH and then when I did and it started to labour it then ordered me to downshift, lol.

Hope all you other owners fare better and I'm sure that if rallycinq ever gets his car we should see some true figures. I'm particularly interested in his comments as we both previously had the 1.3MJT so any comparisons will be read with interest.

What's the new car?