Less fuel efficiency after MHD Tune

Basedtiger · 05-04-2018, 01:33 PM

Hi everyone, I am loving my Stage 1 flash from MHD on the 335i. The power gains compared to stock are well worth it. Anybody else notice a 25-35% drop in fuel efficiency running this tune?

TemjinX2 · 05-04-2018, 01:49 PM

check your logs...my mpg is around as stock....this is assuming your driving the same and not putting the pedal to metal more

jeddo45 · 05-04-2018, 01:59 PM

Quote:

Originally Posted by Basedtiger

Hi everyone, I am loving my Stage 1 flash from MHD on the 335i. The power gains compared to stock are well worth it. Anybody else notice a 25-35% drop in fuel efficiency running this tune?

Did you add the burble option? Because that will definitely do it. I turned it off because I lost a lot of fuel with that on...

Silent9n54 · 05-04-2018, 04:00 PM

Quote:

Originally Posted by Basedtiger

Hi everyone, I am loving my Stage 1 flash from MHD on the 335i. The power gains compared to stock are well worth it. Anybody else notice a 25-35% drop in fuel efficiency running this tune?

im sure you drive it a bit more aggressive since you installed the tune.. you do wanna experience the difference right ??? Smiles per gallon !! its worth it !!

Welcome to NBA Jam · 05-04-2018, 04:41 PM

My calculated MPG according to the car also decreased after the tune. When flashing to and from it, I will find a difference.

Basedtiger · 05-05-2018, 02:36 AM

I have the burble option off. Hope to do walnut blast pretty soon. That should bring the mpg up a bit!

MysticRob · 05-05-2018, 12:47 PM

I've never noticed a difference on any tune but I use it for commuting in crap traffic and rarely have a chance to open it up.
My guess is you're subconsciously hitting the go-fast pedal like a crack-addicted monkey.

05-04-2018, 01:33 PM	#1
Basedtiger Private First Class 41 Rep 117 Posts Drives: BMW 335i Join Date: Dec 2017 Location: Modesto, CA iTrader: (0)	Less fuel efficiency after MHD Tune Hi everyone, I am loving my Stage 1 flash from MHD on the 335i. The power gains compared to stock are well worth it. Anybody else notice a 25-35% drop in fuel efficiency running this tune?
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05-04-2018, 01:49 PM	#2
TemjinX2 Major 521 Rep 1,485 Posts Drives: 2008 335xi e92 Join Date: Dec 2009 Location: Socal OC iTrader: (0)	check your logs...my mpg is around as stock....this is assuming your driving the same and not putting the pedal to metal more __________________ Current Ride=2008 BMW 335xi 2017 BMW M240 Xdrive 2017 BMW M2 N55 6spd 2018 Infiniti Q60 Redsport AWD 2008 BMW 335ix
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05-04-2018, 04:41 PM	#5
Welcome to NBA Jam Is it the shoes!? 3884 Rep 5,112 Posts Drives: (Sold) 2011 E92 335i ZMP 6MT Join Date: Mar 2014 Location: USA iTrader: (1)	My calculated MPG according to the car also decreased after the tune. When flashing to and from it, I will find a difference.
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05-05-2018, 02:36 AM	#6
Basedtiger Private First Class 41 Rep 117 Posts Drives: BMW 335i Join Date: Dec 2017 Location: Modesto, CA iTrader: (0)	I have the burble option off. Hope to do walnut blast pretty soon. That should bring the mpg up a bit!
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05-05-2018, 12:47 PM	#7
MysticRob Captain 573 Rep 870 Posts Drives: 2009 335i E90 Join Date: Jan 2017 Location: Fremont, CA iTrader: (0) Garage List 2009 BMW 335i E90 S ... [10.00]	I've never noticed a difference on any tune but I use it for commuting in crap traffic and rarely have a chance to open it up. My guess is you're subconsciously hitting the go-fast pedal like a crack-addicted monkey. __________________ 2008 E61 535xi Sport Wagon / 100k Miles / Deep Sea Blue Metallic / Natural Brown Interior / MHD Stage 1 91 CA-Octane Tune. SOLD - 2009 E90 335i M-Sport Sedan / 143k Miles / Alpine White Exterior / Chestnut Brown Interior / Mishimoto FMIC / xHP Stage 2.
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