Best MPG runs?

[Secret Green Sauce]

I love taking my LS430 on long trips. Spain and Scotland both ticked off this year.  I was particulalry proud of this recent run up to to the highlands from London, managed to creep over 500 miles on one tank and average 31.2mpg for the whole journey up there.  Used lot's of cruise control, but had a heavy right foot accelerating up to motorway speeds, and plenty of overtaking on the way so wasn't trying to hypermile it.

There were still 5 litres left in the tank when I filled up in Glencoe so she could have gone even further 🙂

What's your best run?

[Stanwithaplan]

I got 30.2 mpg on a trip from Kent to Whitby a few weeks ago in my 400. Just driving normally, I was delighted. 

[John N]

In a Manchester traffic school run I scored 16 mpg today! 

[BigBoomer]

On a long run my best has been a smidge over 30Mpg, but I was cruising at 130Kph/81Mph.
My worst over a full tank was 18Mpg and was due to 3 days of hell commuting on the M25 Carpark via the Dartford Crossing.
Thank FSM that I don't have to do that commute any more!!