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NC 5ltr
Fordmods - Getting Side Ways
Age:28
Posts: 1053
Joined: 12 Nov 2004
Location: Newcastle NSW, Australia
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 Posted: Thu Dec 16, 2004 11:16 pm Post subject: |
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the last couple of days city driving ive done 100klms with power switch on constant, i decidid to go fill up with petrol and see what the fuel economy was,well to my pleasant surprise  i had only done 14.3 ltrs per 100klm's city driving which i thought to be pretty good for a luxo barge.
whoever owns that ebI6 and is getting 18ltr's /100klm's must have lead in his shoes  |
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wolfpac_w
Fordmods Parts Gopher
Age:26
Posts: 87
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Location: Melbourne VIC, Australia
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| Posted: Sat Dec 18, 2004 2:10 pm Post subject: |
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I thought I'd try this "theory" too, filled up with BP Ultimate, and drove to Ballarat, seems to be better on the highway with power mode, and even better around the town... I seem to be getting better economy now... 1/2 a tank to go though... 
Wolfpac_w |
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voxace
Technical Contributor
Age:23
Posts: 3092
Joined: 05 Nov 2004
Location: Ivanhoe NSW, Australia
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| Posted: Sat Dec 18, 2004 3:32 pm Post subject: |
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| NC 5ltr wrote: | | whoever owns that ebI6 and is getting 18ltr's /100klm's must have lead in his shoes |
Down to 17.2l/100km now - bloody awesome!  |
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Bozz
Fordmods - Getting Side Ways
Posts: 615
Joined: 06 Nov 2004
Location: Brackistan VIC, Australia
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| Posted: Sat Dec 18, 2004 7:56 pm Post subject: |
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I'm down to 10.5L/100km around town now with the crusty 4 speed auto.... trying to make it into the 9's
Highway is averaging 7.5-8L/100km. I can get 7.5L/100km if I sit at 90km/h and there is no wind, it goes up to 8 for 100km/h and 8.4 at 110km/h. |
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Daniel
Fordmods - Getting Side Ways
Age:23
Posts: 2969
Joined: 05 Nov 2004
Location: Melbourne VIC, Australia
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| Posted: Sat Dec 18, 2004 9:01 pm Post subject: |
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In my I6 auto i noticed I got noticably better fuel economy with it left in economy and found it suited my driving more - with it in power i found it revved out way too easy n found myself always too high up in the revs too often for my liking..
With the FBT, it has adaptive shift, it has the economy mode which is good for cruising, the adaptive mode which is best for all day every day type driving and a true performance mode where it doesnt just change the points of the shift, but how fast n hard they shift, quite a fun thing to play around with if i do say so myself! 
I have kept mine in adaptive since i got it apart from the last few days ive felt i might waste some fuel in performance mode - spinning into 2nd  |
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Interceptor
Fordmods - Getting Side Ways
Age:26
Posts: 7287
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Location: Somewhere in QLD, Australia
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| Posted: Sat Dec 18, 2004 9:57 pm Post subject: |
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| in economy mode it also flares the shifts more than in power mode, making the shifts less noticeable, at the expense of causing slightly more wear on the gearbox |
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Daniel
Fordmods - Getting Side Ways
Age:23
Posts: 2969
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Location: Melbourne VIC, Australia
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| Posted: Sat Dec 18, 2004 10:12 pm Post subject: |
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| Interceptor wrote: | | in economy mode it also flares the shifts more than in power mode, making the shifts less noticeable, at the expense of causing slightly more wear on the gearbox |
Yer, i noticed this in my i6 heaps too, much slower/smoother shifts - which is what you are referring to i presume.
The guys who serviced my box said it was holding up extremely well considering its spent 90% of its life in economy mode, it was only serviced due to needing new fluid, had no probs with it running 130,000kms in econ mostly.
Therefore i agree with drone, if your auto will go, it will be from something other than having it econ. unless you tow with it in econ!  |
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Lukieman
Fordmods - Smokin em up
Age:27
Posts: 218
Joined: 07 Nov 2004
Location: Brisbane - Clayfield QLD, Australia
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| Posted: Thu Feb 24, 2005 1:49 am Post subject: |
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I have a 1990 EA Fairmont with the 4 speed auto, with all the sensors running correctly now...
Now, bear in mind Im a pizza delivery driver, so my fuel consumption is my no.1 consern as fuel aint cheap when you aint earning much. The area Im working in at the moment has lots of up and down roads... on average, I do around 17-18 lts / 100kms. And that is not flooring it... slow acceleration, let it roll as much as possible...
On the freeway however... I can sit on cruise control from Brissy to the Gold Coast doing 100-110 and my average fuel usage is around 8 lts / 100 kms.
I have driven a few other cars, 4.0 lt ED and a Holden LS 3.8 lt... they both seem to have a bit more push... like when the transmission fluid is super cold.
What could be causing this loss of power in my EA??? Torque converter??? Transmission??? Piston ring leaks, valve leaks? |
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pyroay
Fordmods Audio and Turbo Expert
Age:28
Posts: 2112
Joined: 14 Dec 2004
Location: Traralgon VIC, Australia
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| Posted: Thu Feb 24, 2005 8:04 am Post subject: |
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I have spoken to some autotrans speacilists in the last couple of days about this very issue.
Having you car in econ mode wears the transmission more prematurely, for a number of reasons but more to do with the internal clutch system having more pressure for smoother, lower changes.
In short keep it in Power mode. The guys i am speaking to confirmed there is approx 30,000 - 50,000km difference in transmission life in power mode (on average)
I've just bought an ato e-series and will definately be leaving it in power mode. |
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Ugly Igley
Technical Contributor
Age:25
Posts: 821
Joined: 06 Nov 2004
Location: Perth WA, Australia
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| Posted: Thu Feb 24, 2005 1:00 pm Post subject: |
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| 4.9 EF Futura wrote: | I keep mine in economy just because the difference in pwr is amazing. Kinda like a novelty, car goes so much harder with econ off. Keep it for special moments  |
Agreed. |
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Blazing EF
Fordmods - Getting Side Ways
Age:25
Posts: 434
Joined: 15 Feb 2005
Location: Sydney NSW, Australia
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| Posted: Thu Feb 24, 2005 10:50 pm Post subject: |
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| Hey i have an ef fairmont on gas and was wondering does the econ/pwr switch affect gas or not? |
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Vic
Cruise Moderator
Posts: 5590
Joined: 05 Nov 2004
Location: Melbourne VIC, Australia
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| Posted: Thu Feb 24, 2005 11:13 pm Post subject: |
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| Reddevil wrote: | I get better fuel ecconomy with econ off. Its almost worth about an extra 25-50km a tank.
Car is more fun to drive too. |
I've heard this before but I can't quiite see how that would be? If you think about it, in Power mode you rev out further causing the car to consume more fuel before it ends up at cruise speed. In Econ mode, the transmission changes earlier into the next gear so I'd have thought you're saving more fuel this way?
Fourth gear is the same ratio whether in Power or Economy mode so how do you gain an extra bit of distance out of a tank? |
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One Drone
Fordmods - Getting Side Ways
Age:22
Posts: 2033
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Location: Penrith NSW, Australia
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| Posted: Fri Feb 25, 2005 12:04 am Post subject: |
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| You get there quicker.. In a manual, it isn't too healthy running in 4/5th gear at 40km/h. That is pretty much what economy tries to do. |
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Lukieman
Fordmods - Smokin em up
Age:27
Posts: 218
Joined: 07 Nov 2004
Location: Brisbane - Clayfield QLD, Australia
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| Posted: Sun Feb 27, 2005 2:43 am Post subject: |
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| Bozz wrote: | I'm down to 10.5L/100km around town now with the crusty 4 speed auto.... trying to make it into the 9's
Highway is averaging 7.5-8L/100km. I can get 7.5L/100km if I sit at 90km/h and there is no wind, it goes up to 8 for 100km/h and 8.4 at 110km/h. |
Man, how do you get it down that low, do you have to do a lot of stop and starts at lights or not?!!?
I rekon thats were most of my fuel is going, stopping and starting all the time. |
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aufairmont
Fordmods Newbie
Posts: 5
Joined: 26 Feb 2005
Location: Canberra ACT, Australia
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| Posted: Sun Feb 27, 2005 3:56 pm Post subject: |
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| Have to agree with one drone here. Running the car in eco/power won't make much difference to the longevity of the transmission. It's mainly up to maintance and driving style. |
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data_mine
Technical Contributor
Age:27
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Location: Canberra ACT, Australia
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| Posted: Sun Feb 27, 2005 5:46 pm Post subject: |
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lukieman, you've definately not got the rigth car for a delivery man. The I6s can be very economical - on the highway.
But stopping and starting with a 1200KG+ car (not sure what an EA weighs) with a thirsty 4L is not the way to economy.
My EL, returns a city economy of between 12.8-13.5 L/100 (and I've got a lead foot, and shift kit). and Highway economy down to the 8-9. |
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deos eb
Fordmods Oompa Loompa
Age:27
Posts: 44
Joined: 30 Dec 2004
Location: melbourne VIC, Australia
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| Posted: Mon Feb 28, 2005 2:29 pm Post subject: 4 speed auto power/economy switch |
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well i have an eb2 and i do 4ook's every 4 days that is my shift. i drive 30 or so k's in stop start traffic and 20 or so k's of freeway. i haver peak hr on the way or way home from work.
i drive in pwr in the stop start traffic and econ freeway i am able to get 200k's outta quater of a tank thats (23ltrs) but mind u i have had a rebuild port n polish stage 1 cam and custom made headers. b4 that was done to the car i was getting 13ltrs to the 100k's. and that was giving the car a little go here and there. i drive so the frde is comfertable for me. |
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pyroay
Fordmods Audio and Turbo Expert
Age:28
Posts: 2112
Joined: 14 Dec 2004
Location: Traralgon VIC, Australia
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| Posted: Mon Feb 28, 2005 2:36 pm Post subject: |
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| aufairmont wrote: | | Have to agree with one drone here. Running the car in eco/power won't make much difference to the longevity of the transmission. It's mainly up to maintance and driving style. |
I disagree, i have spoken to 3 mechanics now 1 of which works for FORD and they have all confirmed that driving in economy shortens the life of the box no matter what driving style. Although obviously driving style has an effect in any mode, also factors such as towing etc...
The FORD Mechanic said there is no doubt that is shortens the life although the actual amount can vary from 30,000 - 60,000km less depending on a range of factors. |
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Pulco
Fordmods - Getting Side Ways
Age:24
Posts: 1490
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Location: Maitland NSW, Australia
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| Posted: Mon Feb 28, 2005 2:39 pm Post subject: |
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| easy way to fix this prob, buy a manual and change whenever u want too |
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4.9 EF Futura
Moderator
Age:27
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Location: Adelaide CBD SA, Australia
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| Posted: Mon Feb 28, 2005 2:47 pm Post subject: |
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| pyroay wrote: |
I disagree, i have spoken to 3 mechanics now 1 of which works for FORD and they have all confirmed that driving in economy shortens the life of the box no matter what driving style. Although obviously driving style has an effect in any mode, also factors such as towing etc...
The FORD Mechanic said there is no doubt that is shortens the life although the actual amount can vary from 30,000 - 60,000km less depending on a range of factors. |
Based on your previous post pyro, I think this may be based on the line pressure in the gearbox. i.e. reduced line pressure for those 'lazy' shifts that economy mode produces, effectively more slippage in between gears and therefore more friction-related heat.
One thing everyone here will agree on is that heat kills BTR 4 speeds.
Similar theory to the shift-kit.... argument goes that quicker, firmer shifts result in less slippage in box and therefore less heat. Economy mode is essentially the opposite of a shift kit - gears change at lower revs with lower pressure flowing through the VPR (s5) solenoid.
Well, that's all i can think of...
4th gear is 4th gear. Spending 'more' time in OD will not harm a box (altho there may be more differential in the converter which would result in more heat)... so it must be something to do with the way it 'gets' to 4th gear... i.e. the shifts themselves. I'd also say TCC engages earlier with econoomy mode which may cause extra wear n' tear.
One thing i would focus on is driving in the appropriate style. i.e. if you're in economy mode with the box then treat the accelerator economically - giving it stick is going to cause crappy, slushy shifts under high load which anyone can see (even feel) is not good for the box. |
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