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      12-11-2018, 04:33 PM   #45
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      12-11-2018, 06:08 PM   #46
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You fill a car with petrol therefore you care how much petrol it uses. Luxury in itself is not having to do that. Either you combat that with a bigger fuel tank or better efficiency.

Love all of you who pretend to not care. I get your point. But you DO care. If you had 100mpg you'd much prefer that than 9mpg.
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      12-11-2018, 10:04 PM   #47
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Quote:
Originally Posted by 3t3p View Post
You fill a car with petrol therefore you care how much petrol it uses. Luxury in itself is not having to do that. Either you combat that with a bigger fuel tank or better efficiency.

Love all of you who pretend to not care. I get your point. But you DO care. If you had 100mpg you'd much prefer that than 9mpg.
I do care , but I knew it was going to be low... so I'm trying to tell myself that I knew haha

Of course if it was free to charge (like it is in WA for electric cars) I would be the happiest man in earth...
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      12-11-2018, 10:40 PM   #48
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Quote:
Originally Posted by Aim.F32 View Post
I make sure the temp is on the second line before I push it
how do you display the oil temp?
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      12-12-2018, 07:07 AM   #49
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Quote:
Originally Posted by oshalygin View Post
Quote:
Originally Posted by Aim.F32 View Post
I make sure the temp is on the second line before I push it
how do you display the oil temp?
Press BC bitton until you can see it
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      12-12-2018, 08:45 AM   #50
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Quote:
Originally Posted by ///M Houbi View Post
Press BC bitton until you can see it
....this caught me out, you have to wait a couple of seconds after you see the "oil can" symbol, without pressing BC button, then the mileage display changes to the temp display.

If you're impatient (like me obviously) you'll miss it..
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      12-12-2018, 10:54 AM   #51
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Originally Posted by ///M Houbi View Post
Press BC bitton until you can see it
Thanks!!!
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      12-12-2018, 02:37 PM   #52
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Quote:
Originally Posted by obazavil View Post
Haha

Same here... first tank 14mpg... manual too...

I'm not eco friendly ... that's why they say DCT is more efficient... I guess
No. DCT is inherently more inefficient than a manual. It has more power loss than a manual and is a lot heavier.

It's just that DCT has higher top gear and is programmed to shuffle up gears as quick as possible to do well on mpg tests so it gets better test mpg.

At the same rpm & same speed DCT will do less mpg, simple physics.
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      12-12-2018, 05:19 PM   #53
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      12-12-2018, 09:19 PM   #54
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Quote:
Originally Posted by doughboy View Post
No. DCT is inherently more inefficient than a manual. It has more power loss than a manual and is a lot heavier.

It's just that DCT has higher top gear and is programmed to shuffle up gears as quick as possible to do well on mpg tests so it gets better test mpg.

At the same rpm & same speed DCT will do less mpg, simple physics.
DCT barely weighs any more to the degree that it affects fuel economy. DCT's drivetrain loss is probably only very slightly worse than a manual. It's not a fluid coupling.

DCT does get better fuel economy in real life driving and would with the exact same gearing. The manual shift is by far the dominating factor.
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      12-12-2018, 09:38 PM   #55
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Quote:
Originally Posted by Aim.F32 View Post
But as they say with an M car, it's all about grins per gallon
I believe the correct units of measurement are smiles/gallon
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      12-12-2018, 09:38 PM   #56
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It is possible to drive a manual transmission for excellent efficiency. On old Saab cars (90's) there was a shift light, if you followed that light you would get the best mileage. The process was to maintain the lowest speed with the tallest gear (40 mph in 5th gear), you could get crazy mpg. The problem is behavior modification and trying to restrain oneself from wanting to hooligan or act like an Andretti while driving. A couple years ago some guys invented hypermiling and could get unreal mpg with a manual transmission.
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      12-13-2018, 05:18 AM   #57
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Quote:
Originally Posted by chris719 View Post
DCT barely weighs any more to the degree that it affects fuel economy. DCT's drivetrain loss is probably only very slightly worse than a manual. It's not a fluid coupling.

DCT does get better fuel economy in real life driving and would with the exact same gearing. The manual shift is by far the dominating factor.
The weight difference is about 25kg? Small but everything adds to fuel consumption.

A quick google shows the average DCT has twice the loss of a manual box - circa 8% v 4%, so it is significant. A traditional epicyclic auto is about 13%. DCT overcomes its power loss disadvantage by shifting quickly into high gears when humans are lazy and don't like to change gear so much! DCT wins on mpg because it removes the "human factor"

This really benefits mostly on the town stop/start driving cycle test. At constant speed, where top gears are the same, a manual will do more MPG.

Last edited by doughboy; 12-13-2018 at 05:27 AM..
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      08-23-2019, 12:29 PM   #58
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Quote:
Originally Posted by ///M Houbi View Post
Press BC bitton until you can see it
Can you see a digital speedo and the digital oil temp at the same time?

Going from a Heads up Display and an analog oil gauge in the F80 to the M2c; would you call it Back to the Future?
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      08-23-2019, 12:36 PM   #59
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Quote:
Originally Posted by FreeDarko View Post
Quote:
Originally Posted by ///M Houbi View Post
Press BC bitton until you can see it
Can you see a digital speedo and the digital oil temp at the same time?

Going from a Heads up Display and an analog oil gauge in the F80 to the M2c; would you call it Back to the Future?
Not in the M2C.

Meanwhile i switched to digital speedo instead of oil temp.

I use Bimmerlink to have the exhaust valves open all the time either way so this also tells me the exact oil-, transmission- and motor temp and a few more values I am interested in 👍🏼
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      08-23-2019, 12:59 PM   #60
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Sorry....

400hp car and worry about gas mileage.

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      08-23-2019, 02:57 PM   #61
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Because this topic came back from the dead... While I don't pay much attention to gas mileage in this car, I do know that out of 30+ new cars, the M2c had, by far, the biggest improvement in MPG as it's broken in.

Everything felt super tight for at least 1,000 miles, and the 15-19 mpg tanks reflected that. I'm now at 4,800miles, and, while I drive and rev the snot out of it on a daily basis, I can't recall the last time I dipped below 20. Last tank: 22
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      08-23-2019, 02:58 PM   #62
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Quote:
Originally Posted by ryem3 View Post
It isn't really the mileage, it's the fucking fuel tank
I'm not even close to 200 miles a tank. Reminds me of my E92 M3, which also had a stupid 14 gal tank with a V8. The range is really ridiculous.
yeah, i get my reserve warning at 1/4 tank so it's 10 gallon fill ups every 150-160 miles. I don't mind MPG as much as the tiny tank/range.
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      08-23-2019, 03:13 PM   #63
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Quote:
Originally Posted by ///M Houbi View Post
Not in the M2C.

Meanwhile i switched to digital speedo instead of oil temp.

I use Bimmerlink to have the exhaust valves open all the time either way so this also tells me the exact oil-, transmission- and motor temp and a few more values I am interested in 👍🏼
any reason to buy the 80 dollar OBD device over the 32 dollar one?
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      08-23-2019, 03:18 PM   #64
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Quote:
Originally Posted by FreeDarko View Post
Can you see a digital speedo and the digital oil temp at the same time?

Going from a Heads up Display and an analog oil gauge in the F80 to the M2c; would you call it Back to the Future?
I came from a full spec M6 gran coupe so I know what you're saying, but still love the M2C way more than the M6...

All that stuff is superfluous tat when you enjoy driving the car.

This morning had a 50 mile back road sunrise blast to work, A/C off, radio off, I drive display off, window's down.

No pointless gadgets required.
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      08-23-2019, 05:02 PM   #65
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Quote:
Originally Posted by gmazet View Post
Quote:
Originally Posted by ///M Houbi View Post
Not in the M2C.

Meanwhile i switched to digital speedo instead of oil temp.

I use Bimmerlink to have the exhaust valves open all the time either way so this also tells me the exact oil-, transmission- and motor temp and a few more values I am interested in 👍🏼
any reason to buy the 80 dollar OBD device over the 32 dollar one?
Less connection losses, faster read speed (more frequently updated values) and probably better security
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      08-23-2019, 05:34 PM   #66
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Quote:
Originally Posted by ///M Houbi View Post
Quote:
Originally Posted by FreeDarko View Post
Quote:
Originally Posted by ///M Houbi View Post
Press BC bitton until you can see it
Can you see a digital speedo and the digital oil temp at the same time?

Going from a Heads up Display and an analog oil gauge in the F80 to the M2c; would you call it Back to the Future?
Not in the M2C.

Meanwhile i switched to digital speedo instead of oil temp.

I use Bimmerlink to have the exhaust valves open all the time either way so this also tells me the exact oil-, transmission- and motor temp and a few more values I am interested in
How does Bimmerlink show this?

Can you post a pic?
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