Better mpg with power button on, wtf??

irish77380 · 05-24-2012, 03:44 PM

I decided to try my regular commute in regular mode (power button off) for a week/tank to just see what the mpg improvement would be. It's normally set to on because I like it that way. The car averaged ~14mpg. Power button on always 15mpg+ on the same route. Am I missing something here???

mdosu · 05-24-2012, 03:50 PM

yes, your driving style is obviously highly variable in nature.

irish77380 · 05-24-2012, 03:56 PM

Quote:

Originally Posted by mdosu

yes, your driving style is obviously highly variable in nature.

Similar traffic, same roads, driving style the same (as far as I am aware). Kind of expected to see ~ 16mpg+ with off. Weird.

mdosu · 05-24-2012, 03:57 PM

how many times did you conduct this trial?

THE TECH · 05-24-2012, 03:58 PM

1 MPG difference seems hardly noticeable that it could be attributed to the button.

808@702 · 05-24-2012, 04:03 PM

Button on you go faster/farther so better mpg

Nine · 05-24-2012, 04:04 PM

Could be less time spent accelerating...but that is only speculation...

irish77380 · 05-24-2012, 04:08 PM

Quote:

Originally Posted by mdosu

how many times did you conduct this trial?

Only one week, a full tank. Not going to do it again because it was boring. :-)

irish77380 · 05-24-2012, 04:10 PM

Quote:

Originally Posted by 808@702

Button on you go faster/farther so better mpg

You actually might have a good point there...hmm

irish77380 · 05-24-2012, 04:11 PM

Quote:

Originally Posted by THE TECH

1 MPG difference seems hardly noticeable that it could be attributed to the button.

True, thought I would share it anyway. It is staying on in future.

audioMeth · 05-24-2012, 04:22 PM

maybe because the pedal is so sensitive you actually have to modulate more cognitively versus just mashing the numb non power mode. i know if i drive with power off and then turn it on i have the tendency to drive more aggressive unintentionally until i adapt to the new pedal feel. does it give better mpg? nah, probably not.

Bay Area M · 05-24-2012, 04:41 PM

Quote:

Originally Posted by nuespeedgti

maybe because the pedal is so sensitive you actually have to modulate more cognitively versus just mashing the numb non power mode. i know if i drive with power off and then turn it on i have the tendency to drive more aggressive unintentionally until i adapt to the new pedal feel. does it give better mpg? nah, probably not.

I notice the same thing with my e46 M3 as well. I think with the power mode on, you tend to modulate the gas pedal more carefully. That said, the e46 MPG is still bad for a 6 cylinder.

surlynkid · 05-24-2012, 05:29 PM

not enough data points to be statistically significant.

Arben72 · 05-24-2012, 08:05 PM

Guys this is just proof the ///m likes to be pushed.

R3dn3k Flyby · 05-25-2012, 12:34 AM

I've experienced the same and it surprised me.

Averaged 15.5mpg since purchasing the car and driving in full comfort/non-power.

Decided to turn EDC/Power on with key.

Since then, I've averaged 17.5mpg over the course of 3 tanks with no other changes in driving.

This is not based on the dash readings. This is based on miles driven divided by gallons of gas needed to fill.

tibra1 · 05-25-2012, 12:39 AM

The margin of error is probably 1-2 mpg so there is no difference..the power button is the only thing left to remind me of the turbo snap my 335 use to give..

I just dont understand the point of tracking mpgs on this car..whats the point?

1MOREMOD · 05-25-2012, 12:48 AM

Quote:

Originally Posted by tibra1

I just dont understand the point of tracking mpgs on this car..whats the point?

so i have one more thing to cry about when im trying to get to sleep.

tibra1 · 05-25-2012, 12:57 AM

Quote:

Originally Posted by chriszeh

so i have one more thing to cry about when im trying to get to sleep.

Exactly..I dont want to be constantly reminded that i get shitty gas mileage..I have enuff things to be depressed about..

irish77380 · 05-25-2012, 09:04 AM

Quote:

Originally Posted by tibra1

Exactly..I dont want to be constantly reminded that i get shitty gas mileage..I have enuff things to be depressed about..

Curiosity...

tibra1 · 05-25-2012, 10:32 AM

Quote:

Originally Posted by irish77380

Curiosity...

it killed the cat.

irish77380 · 05-25-2012, 10:35 AM

Quote:

Originally Posted by tibra1

it killed the cat.

Nah, I ran over the cat earlier...

tibra1 · 05-25-2012, 10:38 AM

Quote:

Originally Posted by irish77380

Nah, I ran over the cat earlier...

That could contribute to poor gas mileage

05-24-2012, 03:44 PM	#1
irish77380 Private First Class 8 Rep 116 Posts Drives: M3 Coupe (2008) Join Date: Feb 2009 Location: Houston iTrader: (0) Garage List 2008 BMW M3 [8.00]	Better mpg with power button on, wtf?? I decided to try my regular commute in regular mode (power button off) for a week/tank to just see what the mpg improvement would be. It's normally set to on because I like it that way. The car averaged ~14mpg. Power button on always 15mpg+ on the same route. Am I missing something here??? __________________
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05-24-2012, 03:50 PM	#2
mdosu Banned 314 Rep 8,496 Posts Drives: Double Vanos'd Civic-M3 Join Date: Oct 2009 Location: San Francisco iTrader: (6)	yes, your driving style is obviously highly variable in nature.
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05-24-2012, 03:57 PM	#4
mdosu Banned 314 Rep 8,496 Posts Drives: Double Vanos'd Civic-M3 Join Date: Oct 2009 Location: San Francisco iTrader: (6)	how many times did you conduct this trial?
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05-24-2012, 03:58 PM	#5
THE TECH BimmerPost Supporting Vendor 307 Rep 13,093 Posts Drives: BPMsport 2012 E92 M3 Join Date: Jun 2011 Location: Kansas iTrader: (45) Garage List 2013 Nissan GTR [0.00] 2019 Sierra Denali ... [0.00] 1999 Nissan Silvia [0.00] 1999 Nissan Skyline ... [0.00] 1998 Toyota Supra [0.00]	1 MPG difference seems hardly noticeable that it could be attributed to the button.
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05-24-2012, 04:03 PM	#6
808@702 8th BMW, 520th Surfboard 496 Rep 1,215 Posts Drives: My girlfriends crazy! Join Date: Sep 2009 Location: Las Vegas, Nv. and Honolulu, Hi. and Seattle Wa. iTrader: (0)	Button on you go faster/farther so better mpg
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05-24-2012, 04:04 PM	#7
Nine Banned 49 Rep 1,922 Posts Drives: Not ZCP, FML. Join Date: May 2010 Location: DC, Miami, NYC iTrader: (2)	Could be less time spent accelerating...but that is only speculation...
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05-24-2012, 04:22 PM	#11
audioMeth BTC maxi 222 Rep 1,124 Posts Drives: F80 Join Date: Feb 2009 Location: Rehoboth, MA iTrader: (8)	maybe because the pedal is so sensitive you actually have to modulate more cognitively versus just mashing the numb non power mode. i know if i drive with power off and then turn it on i have the tendency to drive more aggressive unintentionally until i adapt to the new pedal feel. does it give better mpg? nah, probably not.
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05-24-2012, 05:29 PM	#13
surlynkid Major 115 Rep 1,470 Posts Drives: 2013 E92 M3 Join Date: Apr 2012 Location: League City, TX iTrader: (1) Garage List 2010 Porsche GT3 [0.00] 1988 Toyota 4Runner [0.00] 1995 Toyota T-100 4x4 [0.00] 2013 BMW M3 [0.00]	not enough data points to be statistically significant.
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05-24-2012, 08:05 PM	#14
Arben72 Banned 50 Rep 462 Posts Drives: E92 M3 Join Date: Apr 2011 Location: Illinois iTrader: (0)	Guys this is just proof the ///m likes to be pushed.
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05-25-2012, 12:34 AM	#15
R3dn3k Flyby BigMacs 69 Rep 492 Posts Drives: 2019 BMW M5 Join Date: Oct 2009 Location: Queen Creek, AZ iTrader: (5) Garage List 2019 BMW M5 [9.67]	I've experienced the same and it surprised me. Averaged 15.5mpg since purchasing the car and driving in full comfort/non-power. Decided to turn EDC/Power on with key. Since then, I've averaged 17.5mpg over the course of 3 tanks with no other changes in driving. This is not based on the dash readings. This is based on miles driven divided by gallons of gas needed to fill. __________________ 2019 M5 : Black Sapphire Metallic / Black Full Merino / Carbon / B&W / Executive / Driving Assistance Plus / BMW Performance Carbon Fiber Front Splitters, Side Skirts, Rear Diffuser, Trunk Spoiler 2020 RDX A-Spec : Apex Blue Pearl / Red
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05-25-2012, 12:39 AM	#16
tibra1 Banned 127 Rep 6,773 Posts Drives: 2011 ZCP M3 - 2007 335i crashd Join Date: Apr 2009 Location: NYC iTrader: (4)	The margin of error is probably 1-2 mpg so there is no difference..the power button is the only thing left to remind me of the turbo snap my 335 use to give.. I just dont understand the point of tracking mpgs on this car..whats the point?
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