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Old 21-09-2012   #16
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Re: 1.4 16v stilio "poor MPG" 34mpg

Quote Originally Posted by heraldsteve View Post
I'm with Cainy on this one - any modern small engined car (which his is ) should return far better than 38mpg. Likewise my 1.6 returning 33mpg is dismal in my opinion. My last car was a 1.9 diesel vectra and gave me an average 47mpg, and that's a far heavier and faster car than my Stilo.
You can't compare a DERV to Petrol car

A small petrol engine in a heavy car is never going to return as good MPG as the same engine in a lighter car.

As I have said, we're talking about cars weighing around 1300kg vs car with the same engine weighing 900kg, or the same car with a engine more suited to lugging about weight.
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Old 21-09-2012   #17
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Re: 1.4 16v stilio "poor MPG" 34mpg

I'm not supid I know it's difficult to compare apples with pears, but I was just trying to emphasise how poor our Stilos are when it come to economy, especially considering their lack of performance too. Whatever way you look at it, anything less than 40mpg in a smallish modern car with a resonable size engine is pretty poor (except maybe when driving around town).

I personally would never buy a modern car if I knew it did less than 40mpg on the urban cycle. Perhaps I'm being unrealistic in some peoples minds, but nevertheless that is my expection of a modern smallish family car.
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Old 26-09-2012   #18
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Re: 1.4 16v stilio "poor MPG" 34mpg

i used a 7mm spanner but it is not an exact fit on my air box. the 6mm was too small. so my guess would be the correct spanner would be imperial 1/4 inch. i can't say for certain this would fit as i don't have one.
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Old 16-11-2012   #19
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Re: 1.4 16v stilio "poor MPG" 34mpg

the airfilter was replaced just before i bought the car. I checked out the figures before i bought it also, they said 42mpg combined.. which i thought was ok.
haven't done the sparks yet, but i did have a problem with the exhaust, there was a gap between the front exhaust and the midsection, at the "flange" ?>
it was puffing and blowing through the hole, the mpg was about 41 before this happened, but i just gun gummed up the the hole and it seemed to resolve the blowing exhaust, but the mpg didn't improve. even driving like a grandma its getting 35.9 mpg on the readout on the dash. consumption average i think it is called.
mnaybe a visit to an exhaust specialist is in need,
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Old 16-11-2012   #20
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Re: 1.4 16v stilio "poor MPG" 34mpg

Quote Originally Posted by stelarge View Post
the airfilter was replaced just before i bought the car. I checked out the figures before i bought it also, they said 42mpg combined.. which i thought was ok.
haven't done the sparks yet, but i did have a problem with the exhaust, there was a gap between the front exhaust and the midsection, at the "flange" ?>
it was puffing and blowing through the hole, the mpg was about 41 before this happened, but i just gun gummed up the the hole and it seemed to resolve the blowing exhaust, but the mpg didn't improve. even driving like a grandma its getting 35.9 mpg on the readout on the dash. consumption average i think it is called.
mnaybe a visit to an exhaust specialist is in need,
Ignore what the dash is saying, you need to work out MPG manually brimming the tank at each fill up to get an accurate read out.

Mine always said around 34-36mpg on the screen, so sounds about right.
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Old 16-11-2012   #21
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Re: 1.4 16v stilio "poor MPG" 34mpg

How's your wheel alignment?

If the blowout in the exhaust was bad resetting the ECU would get it adjusted instantly and maybe get results.

What kind of roads are you driving?

I do a relatively straight 12 mile run twice a day but drive fairly aggressively and average just over 36MPG in a 1.6.
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Old 16-11-2012   #22
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Re: 1.4 16v stilio "poor MPG" 34mpg

Hi i have the 1.2 stilo on a motorway run with some town driving i get nearly 600 miles to a full tank and on my run to work and back 25miles each way classed as extra urban i get 45.2 mpg and round town about 35mpg a clean air filter will help along with new plugs and check exhaust for leaks as stilos are prone to leaking at the flexi pipe joint i also recommend a bottle of cataclean with 15litres of fuel as it cleans the injectors and cat and does work gfs on ebay sell it for 10.62 with free postage also check tyre pressures which are 1.9 bar all round for a 1.2 and also remeber stilos are prone to brakes grabbing so will use more fuel so a brake strip down and clean will help and highlight any issues for work my car will do 500 plus for 2 weeks with town driving and the fuel running is not much different to the 1.2 and the 1.4 baring in mind i have the 6speed box and make sure your city steering and aircon are off paul
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Old 17-11-2012   #23
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Re: 1.4 16v stilio "poor MPG" 34mpg

clean it all out bud... Clean the throttle body then do a relearn... Pull the Neg lead off the battery over night... Give her a service, plugs and everything else, make sure theyre gapped right and after a couple of weeks see how youre getting on. Imho the 1.2s and 1.4s were a little too underpowered for the size of car but there was enough of them bought... What roads does your commute involve?
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Old 17-11-2012   #24
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Re: 1.4 16v stilio "poor MPG" 34mpg

Cheers guys for the tips, must just need a degunking.
The "blow" was at the union between the flexipipe? and the midsection.
Ive just been out and unplugged the neg- terminal off the battery, will pop back on tomorrow. What effect does disconnecting the battery have? sorry im not much of a car tech.
Will check the plugs and see if they need doing, check the gapping, but arent plugs preset gaps nowadays?
would the plug housing need a good clean with contact cleaner.
is this cataclean really good, ive used redex in the past but without any real difference.
The route i take is 18 miles each way between north swindon and oxford/brize norton, so short dual carriageway, a lot of traffic lights for about 3 miles. then all a-road, (a361 i think) through blunsdon, highworth, lechlade. so quite a smooth run at 50 most of the way, i travel at early oclock in the morns so roads are usually quiet.
will do a brim to brim test soon..
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Old 17-11-2012   #25
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Re: 1.4 16v stilio "poor MPG" 34mpg

pullin the Neg lead resets the ECUs 'learned' fuel maps and fuel trim values, usually it would be more beneficial to pull it after you have done everything else... Probably should have mentioned it before, sorry! If you have no history of the plugs being done Its Well worth doing them... Gap should be somewhere between 0.7-1.0mm when i get home Ill double check my NGK book for you consider puttin cruise control in Its well worth the investment and Its well documented on here! Id Expect higher than 34 on those roads If im honest... We'll all fix it together bud... Itll be worth it in the end
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Old 17-11-2012   #26
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Re: 1.4 16v stilio "poor MPG" 34mpg

HAHA, thankyou.. im sure we will.
apart from the mpg, and the moody central locking its an alright car.
Not a rocketship by anymeans but it does me for what i need.
gonna look at it as a project car, i WILL et it up to 42mpg

on another unrelated note, has anybody slipped a little turbo under the bonnet of one of these, would liven it up a bit i reckon.
just an idea
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Old 17-11-2012   #27
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Re: 1.4 16v stilio "poor MPG" 34mpg

its called a T-Jet and it was fitted to the latest Bravos

NGK Plugs...
1.4 16v 01/04-02/05 DCPR7E-N 0.9mm Gap
1.4 16v 02/05> DCPR7E-N-10 1.0mm preset gap

so the same plug but with different gaps depending on Manufacture date... strange but true!

a bit of light reading for you HERE
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Old 18-11-2012   #28
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Re: 1.4 16v stilio "poor MPG" 34mpg

Quote Originally Posted by richydraper View Post
its called a T-Jet and it was fitted to the latest Bravos
The T-jet has a turbo though doesn't it
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Re: 1.4 16v stilio "poor MPG" 34mpg

he asked has anyone slipped a turbo under a 1.4... Yes... fiat did, in the bravo, Its called a t-jet.

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Old 18-11-2012   #30
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Re: 1.4 16v stilio "poor MPG" 34mpg

Quote Originally Posted by richydraper View Post
he asked has anyone slipped a turbo under a 1.4... Yes... fiat did, in the bravo, Its called a t-jet.

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