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English Gallons again 4.54 Litres
W220 S430 V8 with 46000 miles
Gives 24.5 mpg at 85 mpg cruise
Averages around 21-3 mpg day to day.
Will nearly hit 30mpg at 65-70 mph
Worst day to day was 17 mpg in town,
and got it down to the mid teens on a very fast run with some flat out cruising touching 150mph at points, still very impressive.
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