Great catch Kesta!
I did a google on DSE and found out this stuff is snake oil and the company is targeting people new to biofuels with heavy marketing and false claims.
![[Thumbs Down!]](/forums/graemlins/thumbsdown.gif)
DSE additive Material Safety Data Sheet
General
Synonyms: dimethylbenzene, xylol
Molecular formula: C6H4(CH3)2 This is a mixture of the three xylenes, m-xylene (CAS 108-38-3), o-xylene (CAS 95-47-6) and p-xylene (CAS
106-42-3), and often also contains ethyl bezene (CAS 100-41-4)."