Lately my replies have not been sent right. The page just goes white and nothing. I have not had a chance to ethanol test the black Echo tubing yet. I have faith though that the new offerings like this are all ethanol compatible. The Hayes black neoprene will not last with ethanol, nor will any neoprene. There is a small chance that it is not neoprene any more but I would not trust it. Keep us posted!