Just bought a supercharger and am quite shocked at the fuel consumption!

Before you all say "what did you expect?" I wasn't expecting to achieve the published EU figures, but I wasn't expecting 12 mpg after driving like a granny because I had dogs in the back and I didn't want to make them sick! No full throttle acceleration, cruise set at less than 80 on the motorway and generally pottering at low speed off the motorway.

Is this normal?

Yes this is normal. 2005 Zambezi TDV6 - Gone but not forgotten
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Better get a Nectar Card or a Shell Driver's Club card to take advantage of all the visits to filling stations you will be making. Did you know that when the tank gets to 15ltr remaining your satnav will show the locations of the nearest filling stations? 2020 Pangea Green 1st Edition D240 New Defender 110 is here and loving it
2018 Melting Silver Mini Countryman PHEV - soon to be replaced
2015MY Corris Grey SDv6 HSE Dynamic, the best car I have ever owned, totally reliable only a cou0le of rattles in 3 years, now no longer in my care
Also in my garage is a 1996 TDi300 Defender 90 County HT made into a fake CSW

He'll find out tomorrow! And in 2 days time, and 2 days after that!  2005 Zambezi TDV6 - Gone but not forgotten
2009 Alaska TDV8 - Gone and much missed.



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DO NOT CLICK HERE!

Yeah, very funny...

OK, I'll re-phrase the question:

Can anyone who has actually OWNED a S/C RRS please advise if this fuel consumption is normal?

(Smug owners driving vehicles powered by tractor fuel need not reply - if I didn't care about performance, refinement, and the horrible smell I'd have bought one of them too )

Misery measures journeys in fuel stops rather than miles.
It could be worse - you might have bought a FFRR S/C............. 2020 Pangea Green 1st Edition D240 New Defender 110 is here and loving it
2018 Melting Silver Mini Countryman PHEV - soon to be replaced
2015MY Corris Grey SDv6 HSE Dynamic, the best car I have ever owned, totally reliable only a cou0le of rattles in 3 years, now no longer in my care
Also in my garage is a 1996 TDi300 Defender 90 County HT made into a fake CSW

try reseting the trip and see what you get then i suspect it wont be much more though

baxc wrote:

try reseting the trip and see what you get then i suspect it wont be much more though

do a search for "How thirsty REALLY is the 4.2 supercharged sport?" and you'll see several comments from s/c owners - answer is 15mpg is expected as VA says... bobby said something quite amusing too in that thread... Range Rover Sport TDV8 HSE, Buckingham Blue with Ebony Black
Defender 90 TD5, Tonga Green

Another SW wrote:

Just bought a supercharger and am quite shocked at the fuel consumption!


Is this normal?

12 mpg is 2mpg more than I used to get in mine....or for those of you working in government departments a 20% improvement

I wouldn't mind 12 mpg if I was driving it properly (in fact I would probably be quite pleased), but I really was driving it like a Granny today as one of my dogs is prone to travel sickness - not good with Ivory trim!

Thanks Freddie for pointing out that thread - 15 mpg is what I would have expected as an average and possibly better for today's journey.

I'll have a little play with Sport mode and Command Shift tomorrow (as I have heard that it can be more economical in CS as well as being more fun ). If it doesn't improve I will get it checked out as I hate waste...

On a related issue, anyone found any significant difference with 98/99 octane vs. regular unleaded? Made a big difference (performance and economy) in my 911.

I average around 15mpg around town and 20mpg highway.... here in Texas Brit across the Pond
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hmm i think *Christine* drinks a lot and with one full tank *she* gives 120 miles free driving until the next petrol station - how far do you come with one full tank ?  
L 405 2013 FFRR 5.0 SC
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XXXAngelXXX wrote:

one full tank *she* gives 120 miles free driving until the next petrol station

Crikey! ... 550 miles between stops for me ... hopefully even further after reading the post about adding 0.3l of 2 stroke oil before each fill up ... God bless the diesel engine (makes him feel a bit better for not going with the SC RRS option)

well *Christine* is not a SC  
L 405 2013 FFRR 5.0 SC
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WINNER - 2009 �Best Avatar� Award
WINNER - 2009 Comedian Of The Year Award