nyfty
New member
I track fuel economy on every tank of fuel that goes through my 2017 R1200RT. While it's never met the standards that BMW claims, I usually average between 42 - 45 mpg riding long interstate distances here in the great plains. Just last week my average fell to 35 - 38 mpg. I know this isn't a closed course test. But the loading of the cycle with a solo rider is the same. Also scheduled maintenance is up to date. When I returned home I scanned for error codes using my GS911. Only one was present, Tank Switch Error. Can someone explain what this code means? I have attached a screen shot of the results.