Sprint Booster = Improved Mileage?
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Joined: May 2005
Posts: 1,986
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From: Chicago, IL
I've been getting better gas mileage ever since installing the Sprint Booster about 3 months ago.
For the first two years of driving my 550, I had consistently seen 15.5 to 16.0 MPG on a typical tank of gas driving around Chicago every day (not counting the long highway trips, which are more like 24-27 MPG).
But since installing the SB, I've seen better than 16.5 MPG on every single tank, including an 18.7 MPG achievement this week - all while driving the same routes around town (same times, same traffic conditions, etc...).
I noticed the improved mileage on the very first tank, but I figured that one was a fluke. But it's been consistently improved ever since .. for 3 months now.
How can this be?
Anyone else experiencing this miracle of the SB?
For the first two years of driving my 550, I had consistently seen 15.5 to 16.0 MPG on a typical tank of gas driving around Chicago every day (not counting the long highway trips, which are more like 24-27 MPG).
But since installing the SB, I've seen better than 16.5 MPG on every single tank, including an 18.7 MPG achievement this week - all while driving the same routes around town (same times, same traffic conditions, etc...).
I noticed the improved mileage on the very first tank, but I figured that one was a fluke. But it's been consistently improved ever since .. for 3 months now.
How can this be?
Anyone else experiencing this miracle of the SB?
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Joined: Sep 2005
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From: Italy, Milano
My Ride: 545i SMG with Limited Slip Differential
Model Year: 2005
Originally Posted by tachyon' post='513371' date='Jan 3 2008, 11:03 PM
How can this be?
It isn't indeed .
Anyone else experiencing this miracle of the SB?
The SB doesn't do miracles .
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Joined: Dec 2007
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From: Anaheim, CA
My Ride: F10 M5
Model Year: 2013
Originally Posted by AlexFW' post='513388' date='Jan 3 2008, 02:35 PM
It isn't indeed .
The SB doesn't do miracles .
The SB doesn't do miracles .
LOL....I don't think that you would get better gas milage Im 99.99% sure.
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Joined: Sep 2005
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From: Italy, Milano
My Ride: 545i SMG with Limited Slip Differential
Model Year: 2005
Originally Posted by r1racer' post='513393' date='Jan 3 2008, 11:38 PM
LOL....I don't think that you would get better gas milage Im 99.99% sure.
Nobody could get a better mileage *due to the SprintBooster* =)
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Joined: Apr 2006
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From: SF Bay Area, CA
My Ride: 07 BMW 525i Premium Package, Xenon Lighting Package, manual Transmission. Titanium Grey, 20% Tint around the back, 70% V-Kool on front.
Planned mods: Style 71 wheels with Toyo Proxy 4 tires, Sachs suspension upgrade, upgraded stereo, and many more to come.
tachyon and I are the 0.01% that got better mileage with the sprintbooster.
i have a 525i manual and consistently get about 1-1.5 MPG better with sprintbooster
no idea why it would be, but it has to be due to the sprintbooster though since i didn't change anything else (same tires, same load, same driving condition)...
i have a 525i manual and consistently get about 1-1.5 MPG better with sprintbooster
no idea why it would be, but it has to be due to the sprintbooster though since i didn't change anything else (same tires, same load, same driving condition)...
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From: Miami, Fl
My Ride: 2005 530i Sport & Premium package with bluetooth, 6 disk cd-Changer, stock 18's dunlop wrapped, leather, adaptive headlights, CPO, See my gallery :DR.I.P...Stock Silver 2004 530i with grey interior, HID,
Model Year: 2005
Engine: M54
since the SB makes the throttle responce more sensitive maybe you're not squeezing it as hard and thus you see better mileage??
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From: Melbourne, Australia
My Ride: 1996 525 M Sport
Silver Grey on Beige
Originally Posted by tachyon' post='513371' date='Jan 3 2008, 05:03 PM
I've been getting better gas mileage ever since installing the Sprint Booster about 3 months ago.
For the first two years of driving my 550, I had consistently seen 15.5 to 16.0 MPG on a typical tank of gas driving around Chicago every day (not counting the long highway trips, which are more like 24-27 MPG).
But since installing the SB, I've seen better than 16.5 MPG on every single tank, including an 18.7 MPG achievement this week - all while driving the same routes around town (same times, same traffic conditions, etc...).
I noticed the improved mileage on the very first tank, but I figured that one was a fluke. But it's been consistently improved ever since .. for 3 months now.
How can this be?
Anyone else experiencing this miracle of the SB?
For the first two years of driving my 550, I had consistently seen 15.5 to 16.0 MPG on a typical tank of gas driving around Chicago every day (not counting the long highway trips, which are more like 24-27 MPG).
But since installing the SB, I've seen better than 16.5 MPG on every single tank, including an 18.7 MPG achievement this week - all while driving the same routes around town (same times, same traffic conditions, etc...).
I noticed the improved mileage on the very first tank, but I figured that one was a fluke. But it's been consistently improved ever since .. for 3 months now.
How can this be?
Anyone else experiencing this miracle of the SB?
I find I can get better city mileage in DS mode than D. I think it is because the engine response is better so often less throttle is applied to give the desired effect.
In D mode I find the slower engine response causes me to push more throttle and potentially dump more fuel in. To take it to the extreme when climbing a big hill you can keep a steady throttle which gives max climb speed or you can floor it and use more gas while still not increasing your speed.
SB make the throttle more sensitive so your use of the throttle in stop start type driving may be more precise using marginally less gas. On long trip is should not matter.
The contrary effect is most people with SB still press the pedal as hard as ever and just enjoy the quicker response and use the same or more fuel.
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Joined: Mar 2007
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From: Newnan, Georgia
My Ride: 2004 545i
Production date: 02/04
Color: Black Sapphire Metallic
Trim: Anthracite
Options: Sport package with STEPTRONIC, Premium Sound, Rear Sunshade, Xenon
Maybe you removed some stuff and the car is lighter 
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Joined: Apr 2007
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From: Vancouver, BC , Canada
My Ride: 2011, X6 Hybrid . Alpine White , every option. 20" Conti' NON runflats,OEM trunk spoiler , LUX V3 AE's , HP Thunder Fogs , custom front bumper reflector delete........
Originally Posted by khooger' post='513438' date='Jan 3 2008, 07:39 PM
Maybe you removed some stuff and the car is lighter .....
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