Manual mode = boost in MPG?

323d · 03-12-2008, 09:01 PM

i have an automatic, and i drive the same route 6 days a week... anyways, this week, i have been using the manual mode for the pass two days, and i noticed that my "KM left on tank" display is giving me 20-30KM more than before when i constantly use the automatic...

is this normal? and if so, is it fine if i use the manual mode daily on city driving??

Year's_End · 03-12-2008, 09:23 PM

If you are constantly shifting to the highest gear possible I think it's plausible. The computer is still guessing when to shift so if you shift earlier and use the same amount of throttle then I guess what you're saying should make sense. D mode usually shifts around 2-2.8k for me under light throttle. I shift earlier when I'm going for better mpg's.

323d · 03-12-2008, 09:32 PM

ya i am presuming that is the reason. On manual mode, i shift around 1.8-2k rpm.. just wondering if doing the manual mode will damage the transmisson?

McLuVan · 03-12-2008, 09:44 PM

Quote:

Originally Posted by 323d

ya i am presuming that is the reason. On manual mode, i shift around 1.8-2k rpm.. just wondering if doing the manual mode will damage the transmisson?

i dont think so

paddles ftw!

Zeiss · 03-12-2008, 09:47 PM

Nothing to worry about in manual mode

montreal red · 03-12-2008, 11:01 PM

manual mode wont damage your transmission... i use my manual mode on my step box all the time.

BradM · 03-13-2008, 01:38 AM

2k? Isn't that a bit low? I shift around 3.2-3.5 Feels more natural to me.

asdflkijd · 03-13-2008, 01:42 AM

I'ved used D twice and DS 4 times..

gotta love technology.. electronic clutch ftw! and for that matter, paddles too!

Year's_End · 03-14-2008, 12:35 PM

No clutch, lol^

n5160u · 03-14-2008, 02:43 PM

Quote:

Originally Posted by BradM

2k? Isn't that a bit low? I shift around 3.2-3.5 Feels more natural to me.

He has a diesel so 2k is just before the sweet spot on the torque curve and the best place to shift if looking for fuel economy.

03-12-2008, 09:01 PM	#1
323d Major 52 Rep 1,436 Posts Drives: 335i E90 Join Date: Jan 2008 Location: YVR iTrader: (4)	Manual mode = boost in MPG? i have an automatic, and i drive the same route 6 days a week... anyways, this week, i have been using the manual mode for the pass two days, and i noticed that my "KM left on tank" display is giving me 20-30KM more than before when i constantly use the automatic... is this normal? and if so, is it fine if i use the manual mode daily on city driving?? __________________ ZSP susp//18's 550i reps//blacklines/aftermarket grill//
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03-12-2008, 09:23 PM	#2
Year's_End Lieutenant General 1135 Rep 12,444 Posts Drives: 2020 Shelby GT350 Join Date: Feb 2007 Location: FL iTrader: (0)	If you are constantly shifting to the highest gear possible I think it's plausible. The computer is still guessing when to shift so if you shift earlier and use the same amount of throttle then I guess what you're saying should make sense. D mode usually shifts around 2-2.8k for me under light throttle. I shift earlier when I'm going for better mpg's. __________________ Past: '08 E92 335i\|ZPP\|ZSP\|6AT Past: '15 Mustang GT\|401A\|PP\|6MT Current: '20 Shelby GT350\|6MT
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03-12-2008, 09:32 PM	#3
323d Major 52 Rep 1,436 Posts Drives: 335i E90 Join Date: Jan 2008 Location: YVR iTrader: (4)	ya i am presuming that is the reason. On manual mode, i shift around 1.8-2k rpm.. just wondering if doing the manual mode will damage the transmisson? __________________ ZSP susp//18's 550i reps//blacklines/aftermarket grill//
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03-12-2008, 09:47 PM	#5
Zeiss Lieutenant Colonel 341 Rep 1,864 Posts Drives: Bicycle Join Date: Jan 2007 Location: Vancouver iTrader: (0)	Nothing to worry about in manual mode
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03-12-2008, 11:01 PM	#6
montreal red chris 278 Rep 12,144 Posts Drives: White Boat Join Date: Jun 2007 Location: Toronto iTrader: (31)	manual mode wont damage your transmission... i use my manual mode on my step box all the time. __________________ Current: 2013 F10 M5 & 2016 Mini JCW 2013 GLK350 (gone), 997.1 GT3RS (gone), 2009 WRX STI (gone), e92 M3 (gone)
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03-13-2008, 01:38 AM	#7
BradM Enlisted Member 0 Rep 43 Posts Drives: 06 325i Join Date: Feb 2008 Location: Aliso Viejo, CA iTrader: (0)	2k? Isn't that a bit low? I shift around 3.2-3.5 Feels more natural to me. __________________ 2006 325i sports package Custom Screw Holes in Front Bumper (-1 speed and aerodynamics)
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03-13-2008, 01:42 AM	#8
asdflkijd Aberry is a scammer 556 Rep 5,507 Posts Drives: SGM E92 335i, AM E90 335i Join Date: Jun 2007 Location: Seattle, WA iTrader: (14) Garage List 2008 E92 335i [10.00] 2007 E90 335i (Reti ... [9.00]	I'ved used D twice and DS 4 times.. gotta love technology.. electronic clutch ftw! and for that matter, paddles too!
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03-14-2008, 12:35 PM	#9
Year's_End Lieutenant General 1135 Rep 12,444 Posts Drives: 2020 Shelby GT350 Join Date: Feb 2007 Location: FL iTrader: (0)	No clutch, lol^ __________________ Past: '08 E92 335i\|ZPP\|ZSP\|6AT Past: '15 Mustang GT\|401A\|PP\|6MT Current: '20 Shelby GT350\|6MT
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