Hi all,

I'm about to buy a 2005 4.2 supercharged. I only do 100miles per week and none of that is more than a 20min journey. (Work from home)

How much a week in petrol do you think I'll spend?

Cheers

A full tank of petrol gives me 230-250miles, however my journeys are always below 20mins (I guess running a cold engine so...)

How much does a full tank of petrol cost you?

Full tank is around £80-100 depending on prices at pump

My average is 10 mpg, do about 6 miles a day to and from work, went on a 120 mile round trip at the weekend and was averaging 19 mpg. 2006 4.2 Supercharged Buckingham blue
2003 BMW X5 4.6is Estoril blue
2006 Yamaha FZ6

...on a near on 600 mile round trip A34/M40/M42/M6 - Bolton / returning via M1/M25/M3 kept it around the 70mph mark and averaged 19.7mpg overall.

...I find a week of around town driving gives about 14mpg. I also do about 8000 miles annually.

 Carl

^^^^^^^^^^^^^^^^^ as above around town 13-14 mpg.  16MY Estoril Blue SVR.............
17MY Autobiography Dynamic - Corris Grey - WOW.
14MY Autobiography Dynamic - SDV6 - Fuji White
12MY Autobiography - SDV6 - Santorini Black - Dual View - Rear Entertainment - Sunroof.
12MY Autobiography - SDV6 - Orkney Grey - awesome ;(
2005 Java Black - 4.2 V8 Supercharged First Edition- will never be forgotten ;(

[quote="adamm19830"]Hi all,

I'm about to buy a 2005 4.2 supercharged. I only do 100miles per week and none of that is more than a 20min journey. (Work from home)

How much a week in petrol do you think I'll spend

I have always been told, If you need to ask that question. You cant afford it. Fuel is not the only factor with a 4.2 supercharged  itisme

i got the supercharged regardless of fuel cost as it wasn't getting used much and was just a weekend car. i didnt want the problems that come with short journey diesels as this would out way the fuel cost. i average about the 12 mpg mark.
i got mine as i wanted one for years but i will probably end up getting rid next year. i had it 5 months now and only done 400 miles. I think that millage would destroy a diesel.

I get 13mpg tops around town but I've got a heavy right foot. I was advised when I bought the car that you should always use premium unleaded too which adds a little extra to the cost.

The crappy mpg is totally worth it for the smile it'll put on your face though

I think these two pictures sum up the extremes of S/C fuel consumption pretty well. Both photos were taken at the end of a journey that started with a fill up and trip computer reset.

First was a taken after a 190 mile trip on mostly motorways... (and is the best mpg I've ever recorded so far) the second was after a short trip to the shops

Adam - did you end up buying your RRS in the end?

Click image to enlarge

Click image to enlarge

Hi, I have a 2006 4.2s/c
Just did a big trip from Melbourne to Bathurst and back at the weekend (about 1600klms). Mainly highway driving with some country roads.
Got 7.2klms per ltr (which is 20.34mpg in UK terms).which is pretty good.
It was helped by the STD 2015 20"wheels and 255/55/20 tyres that I have just fitted as they have a bigger rolling diameter.
Agree that the RRS fuel consumption is much better out of town. But as ours is a second SUV we can pick and choose when we want to use it. Nothing like a bit of luxury and performance .