Originally Posted by paullovern
We inadvertantly tanked up with "B11" biodiesel blend. The Sprinter manual clearly forbids the use of any blend greater than "B5". Does anyone have any experience with the use of this blend? Should we have it drained? Use it up and top it off with "B5"?
The use of biodiesel higher than B5 may damage your catalytic exhaust system. I'm mostly
sure the engine will burn B11, but you'll probably get error messages on the dashboard from your exhaust system sensors.
On the plus side, B5 is just a percentage. If you mix B0 and B11 in the right proportions, you can get it back down to B5 or less. So if you drain off enough of the B11 and add B0 to replace it, you should be okay. No need to waste the whole tankful.
Besides, depending on how much fuel you still had in the tank before adding the B11, you've probably already diluted it a little. Whether you diluted it enough, though…