Re: Ethanol resistant fuel lines
As per the top secret files........ all lines must "meet or exceeding SAE J1527 type B or USCG Type B" to be resistant to E10. Hope this helps. Also, lines that are to be under the cowling / cover should be of type "A1 or A2" ratings. I'm doing a search for the same line you have (SAEJ30R6) and found your question. I also googled' this code and found a little manufacture info but nothing states it meet these resistances to E10. It looks like it can withstand temps of +212F, but that is about all it is good for.
Good luck,
SoSoS