That new Shell fuel.

4.2 V8 40v biturbo - 450 bhp
4.2 V8 40v biturbo - 480 bhp (plus)
HYFR
Cruising
Posts: 15568
Joined: Tue Oct 07, 2008 7:02 pm

Post by HYFR » Sat Aug 21, 2010 1:17 pm

im not so sure its down the fuel

I think any RS 6 with any Super fuel, at 60mph cruise control, on a LONG (i.e. 500 miles of motorway) run can get 500+ miles

85litres is a HUGE tank

chesney
2nd Gear
Posts: 190
Joined: Sun Nov 01, 2009 9:37 pm
Location: Aberdeenshire

Post by chesney » Sat Aug 21, 2010 7:08 pm

ecain63 wrote:Dont think you could get any more than 550 to be honest. The DIS might say 600 miles but the car wont go that far. Not unless you run on 4 cylinders for the whole journey.
A full set of space saver wheels and in Holland and I reckon I'll do it easily. :lol:

600 I reckon would be do-able @ 55mph in cruise on a traffic free motorway so long as there are no cold starts. Will maybe go for it some other time and carry a can in the boot and see just how accurate the miles to empty is.

I didn't think my fuel needle was quite at empty when I filled it at 550 but I was too scared to push it further with the miles to empty showing 10 miles after an incline on the motorway. If Optimax really does give you more mpg then I'd be even more confident it'll do 600

Will never get anywhere near that with normal local driving with lots of cold starts

philroach
4th Gear
Posts: 894
Joined: Mon Apr 09, 2007 8:55 pm
Location: coulsdon ,surrey

Post by philroach » Sat Aug 21, 2010 7:54 pm

you get better consumption with cruise control off , last time i heard ?
Now : XFR Jag 5.0 Supercharged

Used to have : C5 Daytona Avant , silver leather , carbon inserts ; RNSE, TV in motion, Bluetooth , well filled SD card slots ; PSS9's ; Hotchkiss ARB's ; Miltek cat back res ; Wagner intercoolers ; Phaeton brake ducts ; forge DV's ;

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