You can blend it any amount you want. In Europe iirc, they blend about 10% with the paraffin diesel to eliminate the need for sulfur. I get it strait up when I can, that's called B-100. Here in WA theres a push to require all diesel have 5%.
"Quality Cable Work for Over .031 Millenium"
This is CABL.com posting #166595. Tiny Link: cabl.co/mRvb