TheSaa :: Bay Window Bus - View topic - 30R14 fuel line
23/4/2012· 30R7 is the rating for low pressure, usually viton-lined, fuel line which is ethanol resistant. 30R14 may be immersible as well, or vapor resistant perhaps. There are a nuer of 30RX ratings that all seem to mean resistance to "today''s fuels". I''ve seen 30R6, 7, 9, 10, and 14.