Modern fuels require modern fuel hose. Installing Barricade protects the system against the aggressive fuel mixtures of today's modern fuels, which can degrade basic rubber hose and result in fuel system failure. Plus, with Barricade, you can be assured that you are complying with permeation laws, and providing your machine with the best hose available - all while being environmentally-friendly. Carbureted engines (pre-1985) and small engines. EEC/EGR, air pump, PCV valve, charcoal canister. Lowest permeation rate on the market 1 gr/m2/day. Exceeds California Air Resources Board (CARB) and EPA requirements. Multi-fuel compatible: Approved for use with leaded and unleaded gasoline, diesel, biodiesel, E-85, 100% methanol, ethanol and gasohol fuels. Performs five times better for permeation than the nearest competitor. Temperature range: -40°F to +257°F (-40°C to +125°C).