What kind of fuel hose is best?
Fuel, emissions and vacuum hoses are made
of special materials to handle the liquids and vapors they carry. Fuel
hose, for example, is made to withstand gasoline and alcohol (up to
a certain percentage concentration). It is also reinforced to withstand
It is extremely important not to use any
other type of hose for a fuel line. Use only approved fuel hose that
is rated for carrying gasoline.
It is also extremely important to use hose
with the correct pressure rating for the application. Hose for electronic
fuel injection (EFI) must have a higher pressure rating (35 to 70 psi
or higher) than that approved for carbureted engines (7 to 10 psi).
You can always use higher rated EFI hose
on a carbureted application, but never the reverse. If lower pressure
carburetor fuel hose is used on a high pressure EFI engine, it may burst
and cause a fire.
High pressure EFI hoses often require special
high pressure rolled-edge clamps rather than standard clamps or spring
clamps. Some EFI hose also uses special connectors. Ford and Mercury
fuel injected engines, for example, have hard nylon fuel lines held
in place by push connectors.