Believe this or not , I managed to get 40.2 MPG out of my my12 RRS AB 3.0 litre deisel . Set C.Control at 59MPH ON Motorway
For about .40 mins any one else get these figures? And what's your best MPG????.

You must have irritated every other driver on the motorway

You can drive at 90 Mph and you still irritate them.

Nowt wrong with 59mph... as long as you're doing it in lane one, and not being a middle lane retard who has the idea that lane one is 'the slow lane', even if it is in this case
My RRS is on 29mpg right now, but only had it 3 weeks and done less than 300 miles. In the old car, would have done 1500 miles by now!

Almost every single RRS or FFRR I've seen on the motorway has been doing at least 90mph! Lord knows where you get the money for all that fuel. And speeding fines!

My MY16 (3.0 hse) has 1600 on the clock. I acheive between 21-25mpg per tank. My best long journey was 35mpg. MY16 (65) RRS, HSE, White, 21" 507s, Pan/Black Roof, 7 Seats, Ebony/Cirrus, Surround Cams, Fully Color Coded

Wa that averaging 90mph?

The endless 50mph limits on the M3 have produced an indicated 42.3 mpg for me! So, probably a real 35mpg,  Regards

Malcolm

I agree with Malcolm whatever the trip computer says the MPG is one needs to run the average MPG for at least 1,000 miles or do a brim to brim top up and then measure the true MPG. I think most will be shocked as the true MPG for most 3 litres RRS is circa 23-29MPG . All the dealers will agree with that range. The SDV6 might make 32 if one is lucky. Again all these figures are real life figures not taken off the fuel computer which over reads. Current Merc GLE 3.5d 2016 model, 2011 RRS HSE standard
Previous 2012 FL2 liked but boot too small
Previous to LR's 3 x Merc E320 estates - fantastic load carriers and long distance cruisers, ultra reliable. Only changed as needed a 4x4 high tow vehicle. Did have a 1955 early LR drop down windscreen and fuel tank under the drivers seat; again very reliable and super rugged.

I have managed an average 21.5 mpg in my MY15 Supercharged which has done 5,600 since I collected it 11 months ago. A lot of my driving is from London to the Midlands and back and the 50 mph on stretches of the M1 probably contribute to that. I try to ignore the < 10 mpg for 6 mile journeys in London or a blast along a B road

Jas Current RRS: MY18 SVR
Previous RRS: MY15 RRS 5.0L Autobiography

I'm averaging 20.1 in my SVR, "best" is 14.8 on a journey, ahem, through North Wales. Mark

SVR in Estoril Blue

32.5 average for 4200 miles, mostly on motorway and I set Adaptive CC to 75. Best I have got was 36.

Are these figures based on the trip computer?

I thought I was achieving 28-29 mpg, but according to fuelly my figures are much less and around 21-25. MY16 (65) RRS, HSE, White, 21" 507s, Pan/Black Roof, 7 Seats, Ebony/Cirrus, Surround Cams, Fully Color Coded

Mine is from Eco data, going to track it from a full tank to see if it differs.

if you would like to monitor your fuel on a brim to brim more accurately then register with Fuelly.com and add the data at each fill up, you can even add part fill ups if you dont brim to brim, but it is easier to to brim to brim. I don't understand people who only add £10 of fuel at a time to an RRS! One thing though is if you add their link in your signature it is not updated for some reason by this forum 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

I always fill mine to brim,,I wait till it gets to quarter then refill

Andy Andy.
21 Ford Ranger
Gone but not forgotten
Focus RS Red Edition
2015 RRS AB Fuji.
2014 RRS SC Santorini
2016 VW Amarok
2014 RRS AB Fuji
2012 RRS Red Edition Fuji
2015 Nissan Navara
2012 RRS SE Santorini
2008 RRS White
2007 RRS Santorino