I wouldn't have believed it was possible, see this thread:
poor MPG on 06 S3
So the Mrs and I decided to head from Glasgow to Newcastle and back for some xmas shopping with our wee boy. I decided to see what could really be achieved on a good long run compared to the other performance car's I've owned in the past.
The car's standard bar a GFB DV+ and a Shark Stage 1 Remap from Brodster, I always run Tesco99 and the car's currently on Winter Continental tyres inflated the the recommended settings on the door for up to 3 passengers.
I filled up yesterday and had to head from Glasgow to Tillicoultry and back which, after resetting the trip odometer on the speedo cluster 6 miles into our journey left me with 76ish miles on the clock this morning and 3/4 of a tank remaining, I'd been taking it quite steady too.
So I reset everything this morning and we head off, I stuck pretty much to 70 on cruise all the way down the M74 to Carlisle (96 miles) then off down the A69 for a further (50 ish miles) at between 50-60 with a good few blasts to get past queue's after roundabouts, arrived at the Metro Centre just outside Newcastle, now showing:
225.1 miles on the clock
This trip (this moring) 149.6 miles
A little under half a tank remaining
170 miles remaining in the tank
Average speed 60 odd
Average mpg 34.1
So about 5pm we leave the Metro Centre to head back home via a little pub for some food not far off the route home. We get stuck for about 20 mins in very slow/stop & start traffic leaving the centre then off to the pub which was through a few 40mph areas about 8 miles along the road. Finish up there and back towards Carlisle this time between 50-55 as was dark and with the little one in the car I'm always cautious especially on unknown single carriage roads. Get to Carlisle and back on the Motorway for home, 65 all the way on cruise with a couple of blasts past HGV convoys.
Anyway, I was starting to get a bit concerned about cutting it very fine as the range was fluctuating as it does but we made it, light came on showing 35 miles remaining when we were 15 miles from home. Eventually pulled up in the Tesco filling station next to me with the following showing on the speedo/computer:
380.1 miles on the clock
This trip (this evening) 155.4 miles
20 miles remaining in the tank
Average speed mid 50's (due to being stuck in that traffic earlier no doubt)
Average mpg 34
So I fill up and the car takes 52L dead on, if it really is a 60L tank that means there was still 8L in there!!
I work out properly with a real MPG calculator and it comes to 33.9mpg average for the whole tank from fill to fill.
What I'm really impressed with is 380.1 miles covered, + 6 miles I covered before remembering to reset the odo + 20 miles remaining! That's well over 400 miles to one tank! + 8L still in there! Not at all bad for a 310bhp Shark Stage 1 S3 Sportback on a long run with a few blasts and some stuck in town thrown in too!
Just goes to show it's how you drive them, if you really want economy at times then you CAN get it.
Point to note, the first half of the tank is a good bit smaller than the 2nd half it seems, especially the 1st 1/4.
Now I just want to go spank another tank properly as it was a truly a dull day driving lol!