F55/F56 :: Hatch Talk (2014+) MINI Cooper and Cooper S (F55/F56) hatchback discussions.

F55/F56 Fuel Efficiency

Thread Tools
 
Search this Thread
 
Old Mar 9, 2015 | 02:26 PM
  #1  
clintmeister's Avatar
clintmeister
Thread Starter
|
3rd Gear
Joined: Mar 2015
Posts: 165
Likes: 2
Fuel Efficiency

Might sound ridiculous, and I doubt I'll be using it much. However, has anyone used green mode enough to tell what kind of fuel efficiency can be obtained in green mode? I'm just curious (while waiting for my MINI to ship) if the "green mode" technology really increases fuel economy like MINI advertises. I haven't been able to find any numbers or fuel ratings in green mode. Thanks!
 
Reply
Old Mar 9, 2015 | 04:41 PM
  #2  
oc cj's Avatar
oc cj
1st Gear
Joined: Sep 2014
Posts: 40
Likes: 0
I can report I've seen a difference. I drive the 405fwy in socal, heavy traffic to and from work daily.

In green mode, I was able to hit 29.8mpg. Since I did a muffler delete, green mode hits a frequency that is extremely annoying so now I always drive in normal and my mileage has gone down to 29.2.

The car doesn't get driven much beyond this so I'm sure results may very. Just what I've noticed.
 
Reply
Old Mar 9, 2015 | 05:20 PM
  #3  
clintmeister's Avatar
clintmeister
Thread Starter
|
3rd Gear
Joined: Mar 2015
Posts: 165
Likes: 2
29.8 isn't that great of fuel efficiency. I used to average 35mpg at highways speeds in my 2010 MINI Cooper S
 
Reply
Old Mar 9, 2015 | 06:18 PM
  #4  
oc cj's Avatar
oc cj
1st Gear
Joined: Sep 2014
Posts: 40
Likes: 0
Heavy traffic = bumper to bumper both ways... I consider 29.8 pretty darn good considering.
 
Reply
Old Mar 9, 2015 | 08:41 PM
  #5  
clintmeister's Avatar
clintmeister
Thread Starter
|
3rd Gear
Joined: Mar 2015
Posts: 165
Likes: 2
Sorry I guess I didn't read the heavy traffic part. That is actually pretty good then. Manual or automatic transmission?
 
Reply
Old Mar 9, 2015 | 10:10 PM
  #6  
craigsix's Avatar
craigsix
3rd Gear
Joined: Feb 2015
Posts: 180
Likes: 1
From: overland park ks.
i never use green mode. sport only for me. ive got 41mpg in sport mode cruise on at 65mph no traffic on flat kansas hiways.
 
Reply
Old Mar 10, 2015 | 04:21 AM
  #7  
clintmeister's Avatar
clintmeister
Thread Starter
|
3rd Gear
Joined: Mar 2015
Posts: 165
Likes: 2
Dang that's pretty dang good for sport mode!
 
Reply
Old Mar 10, 2015 | 07:28 AM
  #8  
cwginac's Avatar
cwginac
2nd Gear
Joined: May 2014
Posts: 62
Likes: 0
Originally Posted by craigsix
i never use green mode. sport only for me. ive got 41mpg in sport mode cruise on at 65mph no traffic on flat kansas hiways.

I usually get about 39 in normal, cruise on, but how do you do 65 on Kansas Highways? I do about 82 on 35 and about 72 on 50/k150/56 when I drive between Marion County and KC.
 
Reply
Old Mar 10, 2015 | 01:22 PM
  #9  
clintmeister's Avatar
clintmeister
Thread Starter
|
3rd Gear
Joined: Mar 2015
Posts: 165
Likes: 2
39 mpg is hella good for normal mode!
 
Reply
Old Mar 10, 2015 | 08:13 PM
  #10  
hp79's Avatar
hp79
4th Gear
Joined: Sep 2014
Posts: 520
Likes: 4
From: Tigard, OR
Green mode numbs down the accelerator quite a bit so you actually accelerate more slowly than you normally would, and also adds coasting function in Automatics if enabled in the Settings.
It's like coasting in N, except it's done by the computer so it's not illegal, but your mileage may vary depending on where you coast.

Overall, it doesn't really save gas if you know how to accelerate gentle enough, except for that coasting feature. I change to Green mode when I know I'm going to coast on a highway downhill.

I enable the auto-idle-off only when I know it's a long signal light, and the engine is fully warmed up.

Don't trust the trip computer. It is way optimistic. Over last couple fill ups, I saw 36mpg on the trip computer, but only 32-33mpg when I calculated it at the pump.
http://www.fuelly.com/car/mini/cooper/2015/hp79/329372
 
Reply
Old Mar 10, 2015 | 08:28 PM
  #11  
randomquickness's Avatar
randomquickness
5th Gear
Joined: Jun 2009
Posts: 631
Likes: 4
I averaged 8 mpg last Friday!


while I was at the track
 
Reply
Old Mar 10, 2015 | 08:37 PM
  #12  
sal1k's Avatar
sal1k
4th Gear
Joined: Jul 2014
Posts: 443
Likes: 1
From: SoCal
Originally Posted by hp79
Green mode numbs down the accelerator quite a bit so you actually accelerate more slowly than you normally would, and also adds coasting function in Automatics if enabled in the Settings.
It's like coasting in N, except it's done by the computer so it's not illegal, but your mileage may vary depending on where you coast.
The true coasting function is no longer enabled. I you have a MINI which hasn't had any software updates since late 2014 you may actually still have the true (transmission decoupled) coasting. After that time, all SW updates have eliminated that due to decreasing the chances of automatics stalling. So when you do "coast" you'll notice slight to moderate engine braking in GREEN mode, when previously the car will coast as if in N.

I confirmed that today at my MA's service dept. when my car was in for recall work, and the loaner I had was a 2014 model which hadn't had any SW updates... I MISS COASTING.

MINI BRING IT BACK!
 
Reply
Old Mar 10, 2015 | 09:28 PM
  #13  
dpcompt's Avatar
dpcompt
5th Gear
15 Year Member
Liked
Loved
Community Favorite
Joined: Mar 2008
Posts: 888
Likes: 105
From: Lodi,CA
Coasting????????

Originally Posted by sal1k
The true coasting function is no longer enabled. I you have a MINI which hasn't had any software updates since late 2014 you may actually still have the true (transmission decoupled) coasting. After that time, all SW updates have eliminated that due to decreasing the chances of automatics stalling. So when you do "coast" you'll notice slight to moderate engine braking in GREEN mode, when previously the car will coast as if in N.

I confirmed that today at my MA's service dept. when my car was in for recall work, and the loaner I had was a 2014 model which hadn't had any SW updates... I MISS COASTING.

MINI BRING IT BACK!
My ''15 F56S auto coasts in green mode when I let off the gas. A lot of misinformation.
 
Reply
Old Mar 10, 2015 | 10:00 PM
  #14  
hp79's Avatar
hp79
4th Gear
Joined: Sep 2014
Posts: 520
Likes: 4
From: Tigard, OR
Originally Posted by sal1k
The true coasting function is no longer enabled. I you have a MINI which hasn't had any software updates since late 2014 you may actually still have the true (transmission decoupled) coasting. After that time, all SW updates have eliminated that due to decreasing the chances of automatics stalling. So when you do "coast" you'll notice slight to moderate engine braking in GREEN mode, when previously the car will coast as if in N.

I confirmed that today at my MA's service dept. when my car was in for recall work, and the loaner I had was a 2014 model which hadn't had any SW updates... I MISS COASTING.

MINI BRING IT BACK!
I remember you talking about that in some other post. I can't comment on how much better it was before since my 2015 F56 came with 2014 July (F056-14-07-506) firmware. I checked with a ODB2 adapter, and when coasting, it idles at 1000 RPM using about 0.28 gal/hour fuel and the transmission is decoupled (similar as gear in N).

Maybe the coasting condition might have been changed? I noticed the engine has to be warmed up and you have to be going above certain speed to let Coasting kick in.

When Coasting is disabled and engine brake kicks in, the fuel usage drops to 0 gal/hour, and I notice some resistance, but not even close to my CX-5 or any other car.

You can try putting your transmission in N while coasting and try comparing (they should feel the same), but if you slow down too much, you'll have to press the brake to be able to put the lever back to D. I often put the transmission in N in my CX-5 to coast, but in a MINI, I just put it in Green Mode for that. It's simpler, and I don't have to worry about pressing the brake to change from N to D.
 
Reply
Old Mar 11, 2015 | 08:50 AM
  #15  
sal1k's Avatar
sal1k
4th Gear
Joined: Jul 2014
Posts: 443
Likes: 1
From: SoCal
Originally Posted by dpcompt
My ''15 F56S auto coasts in green mode when I let off the gas. A lot of misinformation.
When you coast, do you see your revs go down to 1000 or below? If so, then that's very interesting to me. That drop in RPMs signifies the decoupling of the transmission to the engine which was attenuated with software updates. Can you share what SW version you're running (you may still be running early / mid 2014 SW, even though you have a 2015 F56)
 

Last edited by sal1k; Mar 11, 2015 at 08:56 AM.
Reply
Old Mar 11, 2015 | 08:53 AM
  #16  
sal1k's Avatar
sal1k
4th Gear
Joined: Jul 2014
Posts: 443
Likes: 1
From: SoCal
Originally Posted by hp79
I remember you talking about that in some other post. I can't comment on how much better it was before since my 2015 F56 came with 2014 July (F056-14-07-506) firmware. I checked with a ODB2 adapter, and when coasting, it idles at 1000 RPM using about 0.28 gal/hour fuel and the transmission is decoupled (similar as gear in N).

Maybe the coasting condition might have been changed? I noticed the engine has to be warmed up and you have to be going above certain speed to let Coasting kick in..
You're absolutely correct that certain conditions have to be met for that original true coasting to engage. What's interesting to me is that you've got the about the same SW that my car originally came with (early/mid 2014). It was updated at a subsequent appointment in late 2014 -- that's when that feature went away on my car.

For the rest of you, I assume SW will be updated at one of the few recalls that MINI dealers will be taking care of -- At that point, I'd be curious to see if coasting is still engaged after those updates are loaded.
 

Last edited by sal1k; Mar 11, 2015 at 08:58 AM.
Reply
Old Mar 11, 2015 | 09:26 AM
  #17  
dpcompt's Avatar
dpcompt
5th Gear
15 Year Member
Liked
Loved
Community Favorite
Joined: Mar 2008
Posts: 888
Likes: 105
From: Lodi,CA
???????????

Originally Posted by sal1k
When you coast, do you see your revs go down to 1000 or below? If so, then that's very interesting to me. That drop in RPMs signifies the decoupling of the transmission to the engine which was attenuated with software updates. Can you share what SW version you're running (you may still be running early / mid 2014 SW, even though you have a 2015 F56)
My car was updated in February, 2015. It still coasts in green( 1000 rpm). My car is a '15 F56S with sport auto.
Your MA might be full of B.S. It wouldn't the first time a car salesman lied to a customer.
 
Reply
Old Mar 11, 2015 | 09:32 AM
  #18  
clintmeister's Avatar
clintmeister
Thread Starter
|
3rd Gear
Joined: Mar 2015
Posts: 165
Likes: 2
Why is MINI still advertising the coast feature if they have removed it? I consider that false advertisement.
 
Reply
Old Mar 11, 2015 | 10:18 AM
  #19  
siriuszero's Avatar
siriuszero
6th Gear
Joined: Jan 2011
Posts: 1,599
Likes: 42
From: Bothell, WA
Originally Posted by sal1k
The true coasting function is no longer enabled. I you have a MINI which hasn't had any software updates since late 2014 you may actually still have the true (transmission decoupled) coasting. After that time, all SW updates have eliminated that due to decreasing the chances of automatics stalling. So when you do "coast" you'll notice slight to moderate engine braking in GREEN mode, when previously the car will coast as if in N.

I confirmed that today at my MA's service dept. when my car was in for recall work, and the loaner I had was a 2014 model which hadn't had any SW updates... I MISS COASTING.

MINI BRING IT BACK!
I am seeing several brand new '15 F56s and F55s in all trims with the coasting feature...

Where did you hear that MINI was canning this? Are you sure you didn't inadvertently turned it off through the GREEN mode settings?
 
Reply
Old Mar 11, 2015 | 10:22 AM
  #20  
sal1k's Avatar
sal1k
4th Gear
Joined: Jul 2014
Posts: 443
Likes: 1
From: SoCal
Originally Posted by siriuszero
I am seeing several brand new '15 F56s and F55s in all trims with the coasting feature...

Where did you hear that MINI was canning this? Are you sure you didn't inadvertently turned it off through the GREEN mode settings?
I'm 100% certain I haven't turned it off. I guess I'm going to have to be the squeaky wheel.
 
Reply
Old Mar 11, 2015 | 10:23 AM
  #21  
siriuszero's Avatar
siriuszero
6th Gear
Joined: Jan 2011
Posts: 1,599
Likes: 42
From: Bothell, WA
Here are the prerequisites for coasting:
- GREEN mode on
- Speed between 30-100mph
- Accelerator and brake are not being used
- In Drive
- Engine and transmission have to be warmed up

- DSC has to be activated (won't work in TRACTION or DSC OFF)
- Won't work with cruise control
- Won't work if battery is too low or there is an excessive power requirement on the system
- Won't work on steep hills
 
Reply
Old Mar 11, 2015 | 10:34 AM
  #22  
sal1k's Avatar
sal1k
4th Gear
Joined: Jul 2014
Posts: 443
Likes: 1
From: SoCal
Now I'm genuinely curious. I'm going to go to the MINI dealership and test drive a couple of the newer 2015's for myself and see whether they have the coasting feature and compare software versions.

FYI: The Coasting checkbox is still there (and checked), though the Car/Flag icon is dimmed and the mileage numerals next to that icon never update, they stay at zero.
 
Reply
Old Mar 11, 2015 | 10:36 AM
  #23  
dpcompt's Avatar
dpcompt
5th Gear
15 Year Member
Liked
Loved
Community Favorite
Joined: Mar 2008
Posts: 888
Likes: 105
From: Lodi,CA
coasting featuure

After reading these comments and knowing that my car was updated in February of this year, I checked to see if my car still has this feature.Guess what. It still coasts ( 1000 rpm ) when I let off the gas at speeds near 40mph or higher in green mode.
 

Last edited by dpcompt; Mar 11, 2015 at 10:38 AM. Reason: correction
Reply
Old Mar 11, 2015 | 10:54 AM
  #24  
hp79's Avatar
hp79
4th Gear
Joined: Sep 2014
Posts: 520
Likes: 4
From: Tigard, OR
sal1k, did you ever try disable and then enable it again? It might be that the software update changed the settings to default values which might be "disable Coast", but just displaying what was there before the update "Coast enabled".
 
Reply
Old Mar 11, 2015 | 10:57 AM
  #25  
sal1k's Avatar
sal1k
4th Gear
Joined: Jul 2014
Posts: 443
Likes: 1
From: SoCal
Originally Posted by hp79
sal1k, did you ever try disable and then enable it again? It might be that the software update changed the settings to default values which might be "disable Coast", but just displaying what was there before the update "Coast enabled".
I tried that when it disappeared the first time. I haven't tried that yesterday when I got my car back from the latest service appt. Will try that. I owe you a beer if that does the trick.
 
Reply



All times are GMT -7. The time now is 01:14 PM.