Re:Mazda has tested a synthetic fuel in an unmodified MX5 on...
by briffle on Monday January 02, 2023 @01:44PM
(#34221861)
Aspen2 is not green. its Aspen 4, which is part of the gasoline distilation process, but the oil they mix in for the 2 stroke engines is a syntetic bio oil.
https://www.aspenfuels.us/knowledge/what-is-alkylate-fuel/wh...