I've averaged between 50 usmpg and 58 depending on how loaded I am and how fast I'm feeling that day. Had it up to 61.4 puttering around at 40mph for a bit. 2012 adv model, occasionally with the big boxes and mostly without.

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15,000 miles on my 2015 DL650 XT here, if I ride slow, say 35 to 55 mph, I can net 60+ mpg (US) from the bike. At US highway speeds, 70+ mph, I get around 40 to 45 mpg from the bike. It all depends on your travel speeds.

I have put over 100.000km on my personal DL650 (a 2007 K7) and have fuel records for the entire time.

Average fuel consumption is 4.51 ltr/100km.

It has varied from 3.8 to 5.2 ltr/100km. I can only put the variations down to riding style, tyre pressures, weather conditions, amount of luggage carried, chain condition, whereabouts in the service cycle and how much cake I ate the night before. I don't worry about the day to day variations.

Fantastic bikes.

Much variations for sure that can influence fuel consumption. One thing that I seldom see mentioned is fuel quality. Octane numbers, 91, 95, 98? In eastern Europe you often get low octane numbers such as 90 and even 80. In Indonesia you get mostly 88 octane except from big cities. In Bolivia you get 85 octane only. In Thailand there are 10% biofuel added to most gasolin and in Brasil there are 25-27 % biofuel in gasolin and other countries also add more and more biofuel to their gasolin. All this variations are imo important to recognise and to consider when talking about fuel consumption. And as most people know in Europe and Oz/NZ we measure octane rating differently than Usa ans Canada and maybe some other central and south American countries. RON versus MON/AKI etc etc.

I rented a 2016 V-Strom for a couple of days and did around 2000 kms on it with a pillion and a tad of luggage and found the fuel consumption suprisingly low. 4 l /100 kms whem I rode it a bit hard (for my riding style) and down to 3,5 l/100 kms when taking it easy. Impressing! The bike was almost brand new and had only 1500 kms on the clock when I rented it though. And it was in Thailand and the fuel I used was 91 octane RON with 10 % biofuel.
It will be approx 58-65 mpg US and 70-78 mog IMP.

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In the end everything will be fine. If its not fine its not the end....

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around 0,45 liter per 100 km
Or 21 km/liter.

22 liter tank => 22*21= 462 km/tank.
I use to plan for tanks top after 380-400 km

=> The range is not the limiting factor for stopping
400 km/ 80 km/h => 5 hours driving

On my 2018-19 RTW trip, two up on a 2013 DL650 I got 66mpg or 260 UK miles to a tankful. The bike is fitted with a 20 litre tank. Only in Australia and Kazakhstan did I need to use a spare fuel can.

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Tim & Sue Angus