150 mile trip - 42mpg - Not bad!

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Paul CS
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Re: 150 mile trip - 42mpg - Not bad!

Post by Paul CS » Tue Jan 23, 2018 3:30 pm

I’m confused about cruise and coast. My experience is that you can’t have coasting whilst in cruise. If you say they do work together, can you confirm the revs drop to idle RPM (about 800rpm)?

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Paul
M140i MR Shadow Edition. MP springs. Under frame brace.

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Paul CS
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Re: 150 mile trip - 42mpg - Not bad!

Post by Paul CS » Tue Jan 23, 2018 3:30 pm

I’m confused about cruise and coast. My experience is that you can’t have coasting whilst in cruise. If you say they do work together, can you confirm the revs drop to idle RPM (about 800rpm)?

Cheers

Paul
M140i MR Shadow Edition. MP springs. Under frame brace.

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Stegosaurus
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Re: 150 mile trip - 42mpg - Not bad!

Post by Stegosaurus » Tue Jan 23, 2018 3:32 pm

I've had mine for 8 months now, and my total average is 36mpg, over 17,000 miles.

Daily commute the highest I've ever seen is 51 :lol:
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Gone: F20 118d M Sport in Estoril Blue 'Bex'
2 laps of the Nurburgring completed, 136mph achieved (autobahn), 48k miles covered

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Re: 150 mile trip - 42mpg - Not bad!

Post by Thrash » Tue Jan 23, 2018 3:35 pm

Andrew1810 wrote:
Tue Jan 23, 2018 3:22 pm
I'm not saying for you to brake, the cruise control has a braking function. If you're on a decline and CC is set at 40mph for example, it'll coast because the decline can take the car past 40mph itself, with CC just braking to maintain that speed (possibly lets it sit at 42mph sometimes). You would think it makes less sense but it isn't just gearing that is changed, it's also the way the car uses the heaters and also the throttle response, so actually it works quite well and does help up the MPG.
I know it has a brake function, if the brakes are applied any more than a tiny amount then it will re-engage the transmission and you're no longer coasting. Whether it's braking for you with cruise control on or whether you do it yourself, makes no difference I imagine - I never saw mine coast in Eco Pro with cruise control on though. I thought it had been proven that in modern cars 'coasting' doesn't save fuel anyway.
I've used it enough to try get some extra miles out the tank but the effect is negligible in my experience.
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Re: 150 mile trip - 42mpg - Not bad!

Post by Andrew1810 » Tue Jan 23, 2018 3:46 pm

Thrash wrote:
Tue Jan 23, 2018 3:35 pm
Andrew1810 wrote:
Tue Jan 23, 2018 3:22 pm
I'm not saying for you to brake, the cruise control has a braking function. If you're on a decline and CC is set at 40mph for example, it'll coast because the decline can take the car past 40mph itself, with CC just braking to maintain that speed (possibly lets it sit at 42mph sometimes). You would think it makes less sense but it isn't just gearing that is changed, it's also the way the car uses the heaters and also the throttle response, so actually it works quite well and does help up the MPG.
I know it has a brake function, if the brakes are applied any more than a tiny amount then it will re-engage the transmission and you're no longer coasting. Whether it's braking for you with cruise control on or whether you do it yourself, makes no difference I imagine - I never saw mine coast in Eco Pro. I thought it had been proven that in modern cars 'coasting' doesn't save fuel anyway.
I've used it enough to try get some extra miles out the tank but the effect is negligible in my experience.
Not true, on a manual at least, I have had mine on downhill and can physically feel the brakes engaging (plus also see the charge meter go up from braking) and it will continue to maintain speed at it levels out with no added input on my part. I suppose it depends on your overall driving and the kind of journeys you do. I've see it tell me it's added 57 miles to my tank before and its helped me get to/from Manchester for a combined cost of less than a full tank. If I wasn't driving when in Manchester I would love to be able to see the added miles from the full round trip !

As for the above comment about the RPM's going to idle levels.. I can't say I've checked actually ! however the charge meter is in the position it would be if I was coasting manually. It's one for me to double check next time though.

I guess it's not true coasting in the sense that the car remains in gear, it just isn't adding any power to the wheels via the engine.

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Re: 150 mile trip - 42mpg - Not bad!

Post by rasto » Tue Jan 23, 2018 6:05 pm

Stiscooby wrote:
Mon Jan 22, 2018 9:06 pm
I generally have mine in comfort most of the time and seem to get around 230/240 miles to a tank before the low fuel light comes on........ as a matter of interest, what do you get to a tank on yours?
About the same as you.
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CynicalRobot
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Re: 150 mile trip - 42mpg - Not bad!

Post by CynicalRobot » Tue Jan 23, 2018 9:34 pm

Just drove all the way back in comfort mode, some cruise control here and there and i did have a good stretch going 80 for about 20 miles. There could have been a little acceleration with a Golf R in there somewhere :lol: i won of course, or he bottled it before me :oops:

38mpg... that took me down to half a tank. So i used half a tank to go 300 miles.

Its the first longish journey i have done with the car and im so happy with it to be honest, so comfortable and quiet just cruising along. No back ache either :spotman:

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Re: 150 mile trip - 42mpg - Not bad!

Post by Bmw_ire_2012 » Tue Jan 23, 2018 9:45 pm

rasto wrote:
Tue Jan 23, 2018 6:05 pm
Stiscooby wrote:
Mon Jan 22, 2018 9:06 pm
I generally have mine in comfort most of the time and seem to get around 230/240 miles to a tank before the low fuel light comes on........ as a matter of interest, what do you get to a tank on yours?
About the same as you.
I get that in sports mode, my driving is mostly town driving and I'm currently getting 19 mpg which get is about 230 miles.
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Re: 150 mile trip - 42mpg - Not bad!

Post by Stiscooby » Wed Jan 24, 2018 12:06 am

CynicalRobot wrote:
Tue Jan 23, 2018 9:34 pm
Just drove all the way back in comfort mode, some cruise control here and there and i did have a good stretch going 80 for about 20 miles. There could have been a little acceleration with a Golf R in there somewhere :lol: i won of course, or he bottled it before me :oops:

38mpg... that took me down to half a tank. So i used half a tank to go 300 miles.

Its the first longish journey i have done with the car and im so happy with it to be honest, so comfortable and quiet just cruising along. No back ache either :spotman:

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Is yours a M140? When I go in to the trip computer on mine (17 plate M140) I only see the mpg and speed, no journey time?

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Re: 150 mile trip - 42mpg - Not bad!

Post by Stiscooby » Wed Jan 24, 2018 12:09 am

Bmw_ire_2012 wrote:
Tue Jan 23, 2018 9:45 pm
rasto wrote:
Tue Jan 23, 2018 6:05 pm
Stiscooby wrote:
Mon Jan 22, 2018 9:06 pm
I generally have mine in comfort most of the time and seem to get around 230/240 miles to a tank before the low fuel light comes on........ as a matter of interest, what do you get to a tank on yours?
About the same as you.
I get that in sports mode, my driving is mostly town driving and I'm currently getting 19 mpg which get is about 230 miles.
Really!?!? My trip computer normally shows around 30mpg or a little over, so how's that work? :?

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Re: 150 mile trip - 42mpg - Not bad!

Post by Mad_Mac » Wed Jan 24, 2018 7:41 am

Stiscooby wrote:
Wed Jan 24, 2018 12:06 am
CynicalRobot wrote:
Tue Jan 23, 2018 9:34 pm
Just drove all the way back in comfort mode, some cruise control here and there and i did have a good stretch going 80 for about 20 miles. There could have been a little acceleration with a Golf R in there somewhere :lol: i won of course, or he bottled it before me :oops:

38mpg... that took me down to half a tank. So i used half a tank to go 300 miles.

Its the first longish journey i have done with the car and im so happy with it to be honest, so comfortable and quiet just cruising along. No back ache either :spotman:

Image

Is yours a M140? When I go in to the trip computer on mine (17 plate M140) I only see the mpg and speed, no journey time?
Read signatures- he’s in 135. You are probably not checking trip computer showing journey only but The on board computer.
F20 2015 M135i LCI manual, black, coral interior, comfort pack, black grill and MPE

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Re: 150 mile trip - 42mpg - Not bad!

Post by Mad_Mac » Wed Jan 24, 2018 7:43 am

Stiscooby wrote:
Wed Jan 24, 2018 12:09 am
Bmw_ire_2012 wrote:
Tue Jan 23, 2018 9:45 pm
rasto wrote:
Tue Jan 23, 2018 6:05 pm


About the same as you.
I get that in sports mode, my driving is mostly town driving and I'm currently getting 19 mpg which get is about 230 miles.
Really!?!? My trip computer normally shows around 30mpg or a little over, so how's that work? :?
Different roads, different driving style, short journeys... to many variables to compare with other people.
F20 2015 M135i LCI manual, black, coral interior, comfort pack, black grill and MPE

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Re: 150 mile trip - 42mpg - Not bad!

Post by Bmw_ire_2012 » Wed Jan 24, 2018 8:36 am

Stiscooby wrote:
Wed Jan 24, 2018 12:09 am
Bmw_ire_2012 wrote:
Tue Jan 23, 2018 9:45 pm
rasto wrote:
Tue Jan 23, 2018 6:05 pm


About the same as you.
I get that in sports mode, my driving is mostly town driving and I'm currently getting 19 mpg which get is about 230 miles.
Really!?!? My trip computer normally shows around 30mpg or a little over, so how's that work? :?
No Idea, when I say I get 230 miles that with £60 of 97 RON so when I get the notification for low petrol I've 50 miles left from the 230.
M240i Loaded With Options & M Performance Parts. Jb4 / Led M Performance Wheel / Bcs Full System - Sports Cat / BMW M Performance 624 Wheels :evil:

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Re: 150 mile trip - 42mpg - Not bad!

Post by CynicalRobot » Wed Jan 24, 2018 8:41 am

Stiscooby wrote:
Wed Jan 24, 2018 12:06 am

Is yours a M140? When I go in to the trip computer on mine (17 plate M140) I only see the mpg and speed, no journey time?
[/quote]

I have the 135i LCI fella
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Re: 150 mile trip - 42mpg - Not bad!

Post by Barney McGrew » Wed Jan 24, 2018 9:10 am

Thrash wrote:
Tue Jan 23, 2018 1:32 pm
Eco Pro makes even less sense in a manual.
I gave up with eco-pro pretty soon after getting the car, even in my auto.

I reckon it's designed more for a hybrid setup, which is why it has "charge" on the display when coasting. It's a pointless display to have on a non-hybrid car.

Also I don't want the air-con to be limited etc and I decided if I wanted to be so anal about my fuel usage I would have bought a Prius.

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