Bootmod3 and fuel consumption

arvi604 · 06-05-2019, 02:19 AM

Hey guys - about a week now since I've had bm3 installed. Just stage 1 but a drastic improvement in power from stock. I've also noticed a significant decrease in fuel efficiency.

I understand there are a ton of variables for something like this but generally speaking, what are you guys experiencing? I've gone from 11.5l/100k on average to 14.1/100km. Would be interested to hear others.

Rokoz · 06-05-2019, 08:08 AM

I am going through fuel like crazy as well. Butttt.... That's my fault haha

Gen13 F36 · 06-05-2019, 09:57 AM

First off, I don't know how to convert this numbers from southern California, I got BM3 s1 back January with Aug 2018 map... was I lost 2 mpg on average running 18-19 mpg (80% city and 20% hwy) on sport mode.

Then come service so I went back to stock.... I immediately flash back but before that I saw new improve map ots 4.3. Download This map gave me back good mpg I say I'm back to 20-21 mpg with the same driving conditions

CalCarNut · 06-05-2019, 02:56 PM

More power+more go pedal +more fun= (-MPG). Every damn time.

My car (when flashed) got 23.2 combined. WITHOUT the flash, I get 25-27mpg combined...but the car isn't near as fun to drive stock.

Gen13 F36 · 06-05-2019, 03:43 PM

Quote:

Originally Posted by CalCarNut

More power+more go pedal +more fun= (-MPG). Every damn time.

My car (when flashed) got 23.2 combined. WITHOUT the flash, I get 25-27mpg combined...but the car isn't near as fun to drive stock.

Yup an average of negative 1.5 - 2 mpg.... with BM3 s1 flash. But the new ots map update is alot better on mpg. I measured it 5 times already and got improve mpg from the previous ots map.

. ( measure done full tank to full tank, miles driven devided by gallons used)

MacklinUSOB · 06-05-2019, 03:46 PM

Quote:

Originally Posted by Gen13 F36

Yup an average of negative 1.5 - 2 mpg.... with BM3 s1 flash. But the new ots map update is alot better on mpg. I measured it 5 times already and got improve mpg from the previous ots map.

. ( measure done full tank to full tank, miles driven devided by gallons used)

Consistent with my experience. I was coming from a JB+...

I flashed a little over a month ago, has there been another OTS update since then?

Gen13 F36 · 06-05-2019, 05:39 PM

Quote:

Originally Posted by MacklinUSOB

Consistent with my experience.

I flashed a little over a month ago, has there been another OTS update since then?

Just this one

https://f30.bimmerpost.com/forums/sh....php?t=1611146

MONSTAR · 06-05-2019, 05:50 PM

I dont know these liter, kilometer, and pastas per mamma mia's metics, but my mods (downpipe, jb4) effectively reduced my gas mileage by about 33%. I used to average around 330 miles before I needed to re-fuel. I now stop to get gas around the 220 mile mark.

arvi604 · 06-05-2019, 07:16 PM

Good info here. I would say I am getting the same. Approx 20% reduction. Used to fuel up every 420km now ever 330km.

06-05-2019, 02:19 AM	#1
arvi604 Private First Class 61 Rep 155 Posts Drives: F30 328xi SPORT Join Date: Oct 2016 Location: Vancouver BC iTrader: (0)	Bootmod3 and fuel consumption Hey guys - about a week now since I've had bm3 installed. Just stage 1 but a drastic improvement in power from stock. I've also noticed a significant decrease in fuel efficiency. I understand there are a ton of variables for something like this but generally speaking, what are you guys experiencing? I've gone from 11.5l/100k on average to 14.1/100km. Would be interested to hear others.
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06-05-2019, 08:08 AM	#2
Rokoz Lieutenant 293 Rep 495 Posts Drives: 2016 f80 M3 Join Date: Jul 2017 Location: Vermont iTrader: (0)	I am going through fuel like crazy as well. Butttt.... That's my fault haha
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06-05-2019, 09:57 AM	#3
Gen13 F36 Brigadier General 1599 Rep 3,752 Posts Drives: 428i Gran Coupe Join Date: Nov 2017 Location: Los Angeles, CA iTrader: (1)	First off, I don't know how to convert this numbers from southern California, I got BM3 s1 back January with Aug 2018 map... was I lost 2 mpg on average running 18-19 mpg (80% city and 20% hwy) on sport mode. Then come service so I went back to stock.... I immediately flash back but before that I saw new improve map ots 4.3. Download This map gave me back good mpg I say I'm back to 20-21 mpg with the same driving conditions
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06-05-2019, 02:56 PM	#4
CalCarNut Brigadier General 1061 Rep 3,258 Posts Drives: 2015 F36 Jet Black Sport Line Join Date: Apr 2015 Location: Blue Skies iTrader: (0) Garage List 2012 BMW X3 [0.00] 2015 BMW 428i Gran ... [10.00] 1996 Chevrolet Impa ... [8.00]	More power+more go pedal +more fun= (-MPG). Every damn time. My car (when flashed) got 23.2 combined. WITHOUT the flash, I get 25-27mpg combined...but the car isn't near as fun to drive stock. __________________ 2015 BMW F36 428i JetBlack. Sport Line Edition 25% 3M Tint\|
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06-05-2019, 05:50 PM	#8
MONSTAR #gotboost 516 Rep 861 Posts Drives: 2018 M2 Join Date: Sep 2016 Location: Irvine, California iTrader: (0)	I dont know these liter, kilometer, and pastas per mamma mia's metics, but my mods (downpipe, jb4) effectively reduced my gas mileage by about 33%. I used to average around 330 miles before I needed to re-fuel. I now stop to get gas around the 220 mile mark. __________________ 2018 F87 M2 (09/2020 - ) Dinan Cold Air Intake \|Dinan Axle Back \| VRSF 6.5" Intercooler \| VRSF Catless Downpipe \| VRSF Charge Pipes \| BM3 \| MST Inlet v2 \| Turbosmart VR11 2013 F30 328i (12/2015 - 09/2020) SOLD!
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06-05-2019, 07:16 PM	#9
arvi604 Private First Class 61 Rep 155 Posts Drives: F30 328xi SPORT Join Date: Oct 2016 Location: Vancouver BC iTrader: (0)	Good info here. I would say I am getting the same. Approx 20% reduction. Used to fuel up every 420km now ever 330km.
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