Biodiesel can dissolve neoprene rubber. Make sure that hoses and gaskets are made from another material like Viton.
Vegetable oil fuel reactions[edit | edit source]
There have been recorded experiences of galvanic reactions created when used vegetable oils have reacted with metallic fuel system parts.
Notably some metal fuel tanks appear to have a coatings that have reacted with used vegetable oil.
Morgan H Crawford reports such issues.
Joe Betty examined reactions between oils and metals