Ford Fiesta ST
Topic Options
Rate This Topic
#562670 - 18/07/18 05:12 PM 20MPG FFS
MarkThe Shark Offline
n00b

Registered: 18/07/18
Posts: 12
Loc: Leeds
Hi all

I've had my fezzy since November and my typical mpg is 20. I've read on forums that most people are getting 30-40mpg. Mostly urban but I take it easy yet cannot get better mpg. I asked my mechanic mate to look at it and he reckoned it was the temperature sensor but after replacing no joy.

Any ideas / advice would be appreciated.

Top
#562671 - 18/07/18 06:41 PM Re: 20MPG FFS [Re: MarkThe Shark]
_Jimmy_ Offline
Site Supporter

Registered: 11/02/14
Posts: 1197
Loc: Northwest
That seems very low, mine is currently getting mid 20s urban but only short journeys.
Have you confirmed the mpg reading by working it out manually? If it's correct you must be filling up pretty often.

30-40 is only really achievable cruising on open roads imo, I used to be able to get up to about 40mpg on the motorway if keeping under 70mph, but now modified so it's a lot lower.

Perhaps change the air filter and fuel filter as they're a quick and easy thing to do

Curious as to why he suggested the temperature sensor, is the gauge not reading the expected temperature?
_________________________
2005 Fiesta ST
Milltek non-res, Newman fast road cams, Fusion Fabs custom inlet manifold

Top
#562673 - 18/07/18 09:25 PM Re: 20MPG FFS [Re: MarkThe Shark]
YellowBadge Offline
MountooningTipster

Registered: 26/08/07
Posts: 11369
Loc: here
you would have to be thrashing a lot for that, driven carefully and using 5th should be high 27's 33's
_________________________

MR200 Stage 3 200PS
Evans Halshaw
Mountune Pro

Top
#562674 - 19/07/18 10:42 AM Re: 20MPG FFS [Re: _Jimmy_]
MarkThe Shark Offline
n00b

Registered: 18/07/18
Posts: 12
Loc: Leeds
I put 20 quid a week but only do 80 miles or so. filter is a nearly new k&n panel (first thing tried). I'll try a fuel filter next.
his odb2 reader told him the sensor was bad.

Top
#562675 - 19/07/18 10:44 AM Re: 20MPG FFS [Re: YellowBadge]
MarkThe Shark Offline
n00b

Registered: 18/07/18
Posts: 12
Loc: Leeds
Originally Posted By: YellowBadge
you would have to be thrashing a lot for that, driven carefully and using 5th should be high 27's 33's


Not even. I live in speedbumpville.

20 quid is about 4 gallons right?

Top
#562678 - 21/07/18 10:00 PM Re: 20MPG FFS [Re: MarkThe Shark]
kenny Offline



Registered: 08/03/08
Posts: 11596
Loc: essex
If I remember right I was only getting 23 to 25mpg I got better mpg out of my focus St running 320bhp lol

Top
#562681 - 21/07/18 10:19 PM Re: 20MPG FFS [Re: MarkThe Shark]
YellowBadge Offline
MountooningTipster

Registered: 26/08/07
Posts: 11369
Loc: here
Originally Posted By: MarkThe Shark
Originally Posted By: YellowBadge
you would have to be thrashing a lot for that, driven carefully and using 5th should be high 27's 33's


Not even. I live in speedbumpville.

20 quid is about 4 gallons right?



I see yes not fun that, best can advise is use the torque, ST has a nice bit of low down pull so use that and short shift, people tend to rev cars in the gears, use it's strength to the get better MPG.
_________________________

MR200 Stage 3 200PS
Evans Halshaw
Mountune Pro

Top
#562682 - 22/07/18 10:51 AM Re: 20MPG FFS [Re: MarkThe Shark]
MarkThe Shark Offline
n00b

Registered: 18/07/18
Posts: 12
Loc: Leeds
Originally Posted By: kenny
If I remember right I was only getting 23 to 25mpg I got better mpg out of my focus St running 320bhp lol


ok was that modded,mapped,hard driving? the vast majority are claiming around 30 urban so something is wrong.

Originally Posted By: YellowBadge
Originally Posted By: MarkThe Shark
Originally Posted By: YellowBadge
you would have to be thrashing a lot for that, driven carefully and using 5th should be high 27's 33's


Not even. I live in speedbumpville.

20 quid is about 4 gallons right?



I see yes not fun that, best can advise is use the torque, ST has a nice bit of low down pull so use that and short shift, people tend to rev cars in the gears, use it's strength to the get better MPG.


I absolutely do that. Upon further inspection i'm not seeing an egr system. should it have one? I've seen them for sale for it. If it has been removed and not mapped out would that affect economy perhaps?

Top
#562685 - 23/07/18 07:20 AM Re: 20MPG FFS [Re: MarkThe Shark]
_Jimmy_ Offline
Site Supporter

Registered: 11/02/14
Posts: 1197
Loc: Northwest
Originally Posted By: MarkThe Shark
Upon further inspection i'm not seeing an egr system. should it have one?


Probably not, wasn't fitted after 06
_________________________
2005 Fiesta ST
Milltek non-res, Newman fast road cams, Fusion Fabs custom inlet manifold

Top
#562687 - 23/07/18 01:43 PM Re: 20MPG FFS [Re: MarkThe Shark]
YellowBadge Offline
MountooningTipster

Registered: 26/08/07
Posts: 11369
Loc: here
if you're not convinced by your MPG maybe try the old trick of making a note of how much you fill up, zero the miles, then note how much you next time fill up and do a manual MPG calc just to see if there is a significant difference, also what the mpg clock says to be honest is way out because it really matters at what point you press the reset to zero for example from your drive or while you are driving so I would say worry less about that a do a manual calc just for your own confidence. Also idle burns fuel for fun and the clock will be counting down rapidly at junctions.
Hope that helps.
_________________________

MR200 Stage 3 200PS
Evans Halshaw
Mountune Pro

Top
#562688 - 23/07/18 03:31 PM Re: 20MPG FFS [Re: YellowBadge]
MarkThe Shark Offline
n00b

Registered: 18/07/18
Posts: 12
Loc: Leeds
Originally Posted By: _Jimmy_
Originally Posted By: MarkThe Shark
Upon further inspection i'm not seeing an egr system. should it have one?


Probably not, wasn't fitted after 06

ok cheers. And good to hear because they suck.

Originally Posted By: YellowBadge
if you're not convinced by your MPG maybe try the old trick of making a note of how much you fill up, zero the miles, then note how much you next time fill up and do a manual MPG calc just to see if there is a significant difference, also what the mpg clock says to be honest is way out because it really matters at what point you press the reset to zero for example from your drive or while you are driving so I would say worry less about that a do a manual calc just for your own confidence. Also idle burns fuel for fun and the clock will be counting down rapidly at junctions.
Hope that helps.

Thanks but tried. I always reset them at the pump and it seems quite accurate at 20mpg. I just got torque pro so i will have a play around with that and adjust the mpg calc if required.

Top

Moderator:  Duncan_P, kenny, Kev 
Search

Who's Online
0 registered (), 417 Guests and 0 Spiders online.
Key: Admin, Global Mod, Mod
Shout Box

Featured Member
Registered: 26/08/07
Posts: 11369
Today's Birthdays
No Birthdays
Newest Members
AdamTerry36, Savyo, Christian6984, Evankoster, Seannymr200
8105 Registered Users
Top Posters (30 Days)
ChrisCumbria 13
RyanST-05 5
_Jimmy_ 3
YellowBadge 3
Seannymr200 2
Christian6984 1
Crazemk6 1
Siguenzi47 1
pyle 1
R3L 1
Top Posters
ROB IS THE STIG 50824
ChrisCumbria 22824
Scotty 18061
Adam08 15118
Alex_H 15061
steviehouse 11614
kenny 11596
babyboom 11557
Micky 11552
YellowBadge 11369
Forum Stats
8106 Members
49 Forums
32030 Topics
559885 Posts

Max Online: 698 @ 22/03/17 02:21 PM