DSC and fuel consumption
I hardly turn my DSC off until recently. And I noticed driving with DSC off seems to consume less fuel, and the weight of the car feels less heavy. Do you have similiar experience or it's just me?
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My Ride: 2008 Porsche 911 Carrera S Convertible. Midnight Blue, 6 Speed.Retired - 2007 997 Carrera S, Midnight Blue, Grey leather, premium audioRetired - 2007 550i, Monaco Blue over Beige, Navigation, Logic 7, Cold Weather Pack, Comfort Access, Sport Package
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It certainly feels that way. I'm still in break in on the 550 so haven't pushed it yet but on my 545 the car felt sharper with DSC off. I'm not sure if this is a purely psychological benefit or whether (as I suspect is the case) the electronic assistance of DSC, whilst effective, has a low-ish threshold and retards power too early in cases where the car really doesn't need it. In the main I used to keep DSC active on the 545 but when I did disable it I noticed the same effects as you.
Originally Posted by Bimmer530I' post='293626' date='Jun 6 2006, 09:00 PM
I hardly turn my DSC off until recently. And I noticed driving with DSC off seems to consume less fuel, and the weight of the car feels less heavy. Do you have similiar experience or it's just me?
Originally Posted by Bimmer530I' post='293626' date='Jun 7 2006, 05:00 AM
I hardly turn my DSC off until recently. And I noticed driving with DSC off seems to consume less fuel, and the weight of the car feels less heavy. Do you have similiar experience or it's just me?
I don't get what you mean about less heavy - if you mean more responsive and agile - then I agree - but 'less heavy' no ......
Originally Posted by needforspeed' post='293731' date='Jun 7 2006, 04:58 PM
If anything it would be the opposite as DSC will intervene and reduce throttle input if you are accelerating yourself into a skid (as well as adjusting individual braking input to all 4 wheels)
I don't get what you mean about less heavy - if you mean more responsive and agile - then I agree - but 'less heavy' no ......
I don't get what you mean about less heavy - if you mean more responsive and agile - then I agree - but 'less heavy' no ......

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I feel the car more responsive and agile in M mode, but not with DSC turn off though. Will try later.
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Joined: Jan 2005
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My Ride: 2008 Porsche 911 Carrera S Convertible. Midnight Blue, 6 Speed.Retired - 2007 997 Carrera S, Midnight Blue, Grey leather, premium audioRetired - 2007 550i, Monaco Blue over Beige, Navigation, Logic 7, Cold Weather Pack, Comfort Access, Sport Package
Model Year: 2008
Originally Posted by windnsea00' post='293656' date='Jun 6 2006, 11:13 PM
Dynamic Stability Control has no effect on fuel mileage. It's there to prevent the spinning of the tires (by backing off the fuel and applying the brakes) and/or control a slide by individually applying the brakes and backing off the fuel.
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Originally Posted by Bimmer530I' post='293626' date='Jun 6 2006, 11:00 PM
I hardly turn my DSC off until recently. And I noticed driving with DSC off seems to consume less fuel, and the weight of the car feels less heavy. Do you have similiar experience or it's just me?
DSC on--maximum stability control and minimum wheel spin allowed
DTC on--less stability control and more wheel spin. less stability control because more wheel spin is allowed
Both off--in theory, little to no stability control and little to no traction control (i.e., maximum wheel spin allowed)
Car more responsive at slow speeds especially when heavy foot is applied with both off since the effects of the HP robbing nannies are minimized.


