Originally Posted by TARVIDSON
Mercedes only approved 5% max
Mercedes would prefer that you use 0% biodiesel, but they approve 5% and allow up to 20% if nothing else is available. They'd like you to fill will lower percentage as soon as you can.
I must admit that, in general, I don't worry about this at all. I'm putting relatively few miles on the motorhome and I'm taking pretty good care of everything involved. I might be a bit (not a lot, but a bit) more concerned if my every day car was a MB diesel and I was putting 25,000 miles/year on it. On the other hand, all those trucks at the Flying J and Pilot (and pretty much every other truck stop) are putting on 500,000 miles/year or more ... and those trucks do seem to keep rolling. Maybe they're just lucky.