07-31-2018, 09:48 PM | #1 |
Captain
316
Rep 719
Posts |
Turbo oil supply issue
Is this true ?
Turbo oil supply with engine shut down feature https://www.2addicts.com/forums/show....php?t=1521252 |
07-31-2018, 09:56 PM | #2 |
Brigadier General
10933
Rep 4,551
Posts
Drives: 2015 328d xDrive
Join Date: Aug 2010
Location: NoVA
|
Even if it isn't true I wouldn't ever use the auto start/stop feature in either my 6MT M2 or my 8AT 328
1. It's annoying as fuck 2. It barely has any impact on fuel economy and 3. It will (presumably) prematurely wear out your starter |
Appreciate
8
NYC Bimmer259.50 ORG52.50 ///M Houbi1655.00 Blurbo311197.00 Free Spirit42.00 ChrisK4450.00 Glounk115.00 JTO245276.00 |
07-31-2018, 10:19 PM | #3 |
Captain
316
Rep 719
Posts |
|
Appreciate
0
|
08-01-2018, 04:38 PM | #5 |
Brigadier General
1622
Rep 3,402
Posts |
There is zero upside to activating or perhaps stated more properly no deactivating start stop on this or any other car. This is an EPA points grab, even when certain technologies don't provide a significant improvement in emissions or economy the EPA gives the manufacturers credit towards their corporate average fuel economy, if it wasn't for this none of these systems would exist. Mine will never be used.
|
Appreciate
2
horsepower_and_hounds1836.00 Pyrat 21417.50 |
08-05-2018, 10:03 AM | #6 | |
Opus Angelus
426
Rep 1,267
Posts |
Quote:
|
|
Appreciate
0
|
08-09-2018, 12:47 PM | #7 |
Private First Class
35
Rep 184
Posts |
Do you have to turn it off every time you get in the car?
__________________
-----------------------
2011 Lotus Evora 2015 Alfa Romeo 4c 2015 Scion FR-S Coming soon - 2019 M2 Competition |
Appreciate
0
|
08-09-2018, 12:52 PM | #8 |
Major General
10686
Rep 6,939
Posts
Drives: 2018 M2 AW DCT
Join Date: Aug 2012
Location: Seattle, WA
|
|
Appreciate
0
|
08-09-2018, 01:17 PM | #9 |
General Moron
247
Rep 158
Posts |
|
Appreciate
0
|
08-09-2018, 01:22 PM | #10 |
Captain
725
Rep 929
Posts
Drives: 2019 F87 M2C, 2023 G87 M2
Join Date: Mar 2018
Location: North America
|
|
Appreciate
0
|
08-09-2018, 02:26 PM | #12 | |
Major
1404
Rep 1,466
Posts |
Quote:
Coding to the US behaviour is very easy if you're not happy with the UK behaviour...
__________________
2018 ///M2 LCI, LBB, 6MT...
Current Performance Mods: CSF FMIC, ER CP, Fabspeed Cat, Aquamist WMI, GFB DV+, NGK 97506, BM3 (Stage 2 93 OTS), CDV delete, UCP, M2C/M3/M4 Strut Brace, M3/M4 Reinforcement Rings |
|
Appreciate
1
Peasley247.00 |
08-09-2018, 02:29 PM | #13 |
Second Lieutenant
152
Rep 211
Posts |
|
Appreciate
0
|
08-10-2018, 09:01 PM | #14 | |
Colonel
1418
Rep 2,560
Posts
Drives: Rapidly from A to B
Join Date: Jun 2005
Location: Chicago 'burbs or TN Smokies
|
Quote:
__________________
'07 Z4MR '22 GT4 '18 GT3 '16 GT4, '16 M2, '14 X1, '13 135is, '06 330i, '03 323 Ci, '01 330i, '99 M3 (RIP), '96 318is, some non-BMWs
|
|
Appreciate
0
|
08-10-2018, 09:36 PM | #15 | |
Banned
42
Rep 51
Posts |
Quote:
I agree, it shows very little benefit except in my mind.. |
|
Appreciate
0
|
08-11-2018, 12:26 PM | #16 | |
Major
1404
Rep 1,466
Posts |
Quote:
If your journey is not full of start and stop traffic, I can see that only stopping the engine a few times on a journey would save you nothing at all. To be clear, I'm not saying that it isn't designed to improve the EPA test results, but keep in mind that the EPA test is different from the tests in Europe, and the feature is the same. Just because it gives a good improvement and is somewhat optimised for the EPA tests, doesn't mean it won't provide a benefit in the real world. Perhaps not as much benefit, but a benefit nonetheless. The EPA result for the 6MT M2 is 18 / 26 / 21. I've never seen anything close to 26, but I will get 21 on a journey to San Francisco and back (mostly highway, bit of city, ~100miles total). Our cars are thirsty as it is... every little helps! I can totally see why it would be a lot more annoying in a DCT car, but in a manual we have a lot more control over if we want it on or not. If I'm sat at the lights and don't want to be slowed down, you can just press in the clutch briefly, and it will start up again. It's really not intrusive at all with a manual car.
__________________
2018 ///M2 LCI, LBB, 6MT...
Current Performance Mods: CSF FMIC, ER CP, Fabspeed Cat, Aquamist WMI, GFB DV+, NGK 97506, BM3 (Stage 2 93 OTS), CDV delete, UCP, M2C/M3/M4 Strut Brace, M3/M4 Reinforcement Rings |
|
Appreciate
0
|
08-11-2018, 03:15 PM | #17 |
Major General
10686
Rep 6,939
Posts
Drives: 2018 M2 AW DCT
Join Date: Aug 2012
Location: Seattle, WA
|
Hmm, I just drove to Montana and back. 1200 miles total and averaged over 26 mpg.
|
Appreciate
0
|
08-11-2018, 03:33 PM | #18 |
Major
1404
Rep 1,466
Posts |
I think CA has had a lot to do with it. I got less than that before I started adding E85 every tank. CA gas is so bad, you get timing pull and I believe extra fuel injected to prevent knock, so adding E85, which should increase fuel consumption, actually decreased it!
|
Appreciate
0
|
08-11-2018, 04:11 PM | #19 | |
Major General
10686
Rep 6,939
Posts
Drives: 2018 M2 AW DCT
Join Date: Aug 2012
Location: Seattle, WA
|
Quote:
|
|
Appreciate
0
|
08-11-2018, 10:41 PM | #20 | |
Major General
5865
Rep 6,637
Posts |
Quote:
|
|
Appreciate
0
|
08-12-2018, 04:50 AM | #21 |
Major General
7340
Rep 7,301
Posts |
Gasoline that is 10% ethanol has around 98% of the total energy of gas without it. E85 contains even less, around 72%.
CA gas is going to be 91 octane for premium, but I highly doubt anti-knock measures reduce fuel economy by almost 30%, which is what it would take to make it equivalent to E85. https://en.wikipedia.org/wiki/Gasoli...lon_equivalent |
Appreciate
0
|
08-12-2018, 09:24 AM | #22 | |
Major
1404
Rep 1,466
Posts |
Quote:
I believe the base fuel in CA is 89 AKI with 10% ethanol added, which works out at 90.6 AKI if I remember correctly, enough to round up to sell as 91, but not be actually 91, and not be very good. AKI is also an average of MON and RON, with MON being more important for our engines, but never reported on. I suspect that the CA 89 base fuel has a slightly higher RON that other regions, and a slightly lower RON. This still averages out to 89 AKI, but again, contributes to the poor performance. Several well regarded tuners have looked at logs I've taken on the stock M2 map, and told me it looks like CA 91 is equivalent to the rest of the world's 88 AKI! Adding my additional E85 (to make E20) is getting me performance close to rest of the world 91 AKI, and, as I said improving fuel consumption slightly. |
|
Appreciate
0
|
Post Reply |
Bookmarks |
|
|