I wish I could get non- bio diesel. Only 2 stations around me in Illinois aell straight #2.
Thanks to the governors decree to sell bio-diesel. When asking several stations. All they can tell you is that bio is 10 to 20%.
My 07 Duramax says in the manual to NOT use more than 3%.
FYI. The 2 stations are about an hour away
Is there a ‘home heating oil’ dealer nearby?...................