That's just a standard disclaimer. Has anyone actually tried it? VW documentation says to use B5 or lower in my car, as well, and it's known to be one of the

That's just a standard disclaimer. Has anyone actually tried it? VW documentation says to use B5 or lower in my car, as well, and it's known to be one of the best engines ever for biodiesel. The previous owner and I have run B99 in it for years with no problems at all. It's not much different from running Linux on your computer. Just because they don't test it that way doesn't mean it will necessarily cause problems.