Change in fuel economy with roof racks on A4 Avant?
 

Just for curiosity: Any of you with A4 Avant notice a worsening of fuel
economy when driving with roof racks attached to the railings?

Strangely enough I appear to burn 5-10% more fuel with them on, even if
it's just the roof racks. Most of my driving is on the highway, avg
speed approx 100 km/h (60 mph)

Any of you notice a difference? Or is just my imagination?

/Robert

Re: Change in fuel economy with roof racks on A4 Avant?
 

"Robert" <rxobert.bxrown@txripnet.se> wrote in message
news:lRoQc.100099$dP1.345827@newsc.telia.net...
> Just for curiosity: Any of you with A4 Avant notice a worsening of fuel
> economy when driving with roof racks attached to the railings?
>
> Strangely enough I appear to burn 5-10% more fuel with them on, even if
> it's just the roof racks. Most of my driving is on the highway, avg
> speed approx 100 km/h (60 mph)
>
> Any of you notice a difference? Or is just my imagination?
>
> /Robert
>

'appear to burn 5-10% more fuel'

How can you imagine a fact?

Ronald

Re: Change in fuel economy with roof racks on A4 Avant?
 

"Robert" <rxobert.bxrown@txripnet.se> wrote in message
news:lRoQc.100099$dP1.345827@newsc.telia.net...
> Just for curiosity: Any of you with A4 Avant notice a worsening of fuel
> economy when driving with roof racks attached to the railings?
>
> Strangely enough I appear to burn 5-10% more fuel with them on, even if
> it's just the roof racks. Most of my driving is on the highway, avg
> speed approx 100 km/h (60 mph)
>
> Any of you notice a difference? Or is just my imagination?
>
> /Robert
>

'appear to burn 5-10% more fuel'

How can you imagine a fact?

Ronald

Re: Change in fuel economy with roof racks on A4 Avant?
 

R@L wrote:

> "Robert" <rxobert.bxrown@txripnet.se> wrote in message
> news:lRoQc.100099$dP1.345827@newsc.telia.net...
>
>>Just for curiosity: Any of you with A4 Avant notice a worsening of fuel
>>economy when driving with roof racks attached to the railings?
>>
>>Strangely enough I appear to burn 5-10% more fuel with them on, even if
>>it's just the roof racks. Most of my driving is on the highway, avg
>>speed approx 100 km/h (60 mph)
>>
>>Any of you notice a difference? Or is just my imagination?
>>
>>/Robert
>>
>
>
> 'appear to burn 5-10% more fuel'
>
> How can you imagine a fact?
>
> Ronald

Very funny.

/Robert

Re: Change in fuel economy with roof racks on A4 Avant?
 

R@L wrote:

> "Robert" <rxobert.bxrown@txripnet.se> wrote in message
> news:lRoQc.100099$dP1.345827@newsc.telia.net...
>
>>Just for curiosity: Any of you with A4 Avant notice a worsening of fuel
>>economy when driving with roof racks attached to the railings?
>>
>>Strangely enough I appear to burn 5-10% more fuel with them on, even if
>>it's just the roof racks. Most of my driving is on the highway, avg
>>speed approx 100 km/h (60 mph)
>>
>>Any of you notice a difference? Or is just my imagination?
>>
>>/Robert
>>
>
>
> 'appear to burn 5-10% more fuel'
>
> How can you imagine a fact?
>
> Ronald

Very funny.

/Robert

Re: Change in fuel economy with roof racks on A4 Avant?
 

"Robert" <rxobert.bxrown@txripnet.se> wrote in message
news:mlpQc.100100$dP1.345880@newsc.telia.net...
> R@L wrote:
>
> > "Robert" <rxobert.bxrown@txripnet.se> wrote in message
> > news:lRoQc.100099$dP1.345827@newsc.telia.net...
> >
> >>Just for curiosity: Any of you with A4 Avant notice a worsening of fuel
> >>economy when driving with roof racks attached to the railings?
> >>
> >>Strangely enough I appear to burn 5-10% more fuel with them on, even if
> >>it's just the roof racks. Most of my driving is on the highway, avg
> >>speed approx 100 km/h (60 mph)
> >>
> >>Any of you notice a difference? Or is just my imagination?
> >>
> >>/Robert
> >>
> >
> >
> > 'appear to burn 5-10% more fuel'
> >
> > How can you imagine a fact?
> >
> > Ronald
>
> Very funny.
>
> /Robert
>

Indeed, your message was funny.

Ronald.

Re: Change in fuel economy with roof racks on A4 Avant?
 

"Robert" <rxobert.bxrown@txripnet.se> wrote in message
news:mlpQc.100100$dP1.345880@newsc.telia.net...
> R@L wrote:
>
> > "Robert" <rxobert.bxrown@txripnet.se> wrote in message
> > news:lRoQc.100099$dP1.345827@newsc.telia.net...
> >
> >>Just for curiosity: Any of you with A4 Avant notice a worsening of fuel
> >>economy when driving with roof racks attached to the railings?
> >>
> >>Strangely enough I appear to burn 5-10% more fuel with them on, even if
> >>it's just the roof racks. Most of my driving is on the highway, avg
> >>speed approx 100 km/h (60 mph)
> >>
> >>Any of you notice a difference? Or is just my imagination?
> >>
> >>/Robert
> >>
> >
> >
> > 'appear to burn 5-10% more fuel'
> >
> > How can you imagine a fact?
> >
> > Ronald
>
> Very funny.
>
> /Robert
>

Indeed, your message was funny.

Ronald.

Re: Change in fuel economy with roof racks on A4 Avant?
 

Never bothered to calculate the difference in fuel consumption but I notice
a lot more wind noise with them than without.

I would expect this increased drag to affect my fuel economy but I'm more
picky about the noise than anything. I remove them when not in use.


"Robert" <rxobert.bxrown@txripnet.se> wrote in message
news:lRoQc.100099$dP1.345827@newsc.telia.net...
> Just for curiosity: Any of you with A4 Avant notice a worsening of fuel
> economy when driving with roof racks attached to the railings?
>
> Strangely enough I appear to burn 5-10% more fuel with them on, even if
> it's just the roof racks. Most of my driving is on the highway, avg
> speed approx 100 km/h (60 mph)
>
> Any of you notice a difference? Or is just my imagination?
>
> /Robert
>

Re: Change in fuel economy with roof racks on A4 Avant?
 

Never bothered to calculate the difference in fuel consumption but I notice
a lot more wind noise with them than without.

I would expect this increased drag to affect my fuel economy but I'm more
picky about the noise than anything. I remove them when not in use.


"Robert" <rxobert.bxrown@txripnet.se> wrote in message
news:lRoQc.100099$dP1.345827@newsc.telia.net...
> Just for curiosity: Any of you with A4 Avant notice a worsening of fuel
> economy when driving with roof racks attached to the railings?
>
> Strangely enough I appear to burn 5-10% more fuel with them on, even if
> it's just the roof racks. Most of my driving is on the highway, avg
> speed approx 100 km/h (60 mph)
>
> Any of you notice a difference? Or is just my imagination?
>
> /Robert
>

Re: Change in fuel economy with roof racks on A4 Avant?
 

From another car type but maybe it applies:

With larger Jeeps like the Grand Larado it is suggested that the front rack
be placed in the forward slot and the rear in the back slot. If I recall
correctly, it was an economy (first) and noise (second) suggestion. This
was mentioned in the owners manual (1999 vintage). Of course when you buy a
Jeep now, the racks are not provided as standard equipment (rails yes, racks
no) 2002 vintage.

HTH, Glenn

"Robert" <rxobert.bxrown@txripnet.se> wrote in message
news:lRoQc.100099$dP1.345827@newsc.telia.net...
> Just for curiosity: Any of you with A4 Avant notice a worsening of fuel
> economy when driving with roof racks attached to the railings?
>
> Strangely enough I appear to burn 5-10% more fuel with them on, even if
> it's just the roof racks. Most of my driving is on the highway, avg
> speed approx 100 km/h (60 mph)
>
> Any of you notice a difference? Or is just my imagination?
>
> /Robert
>