there are some with much better knowledge than me on this but i have run b20 in my truck and it liked it. you might want to consider running a mix for a little so you dont shock the system with sludge like mentioned above. keep an eye on your rubber lines since bio can make those soft but most dont seem to have a problem with that unless the lines were in need of replacement to begin with.
i would run it and plan on doing so, i think you will like it.