What size is sufficient for the oil supply hoses to each turbo? I've read -4an or 1/4" ID is fine. I've already bought some -4an hose and fittings. I can always take them back no problem if it's not right. Thanks.
Bill Gilbert 85 D350 crew with 90 6BT intercooled Getrag 3.07's 93 D350 single cab Getrag 3.54's.