Subaru EH025A Owner's Manual page 26

CHECKING BOLTS, NUTS
AND SCREWS
Retighten loose bolts and nuts.
Check for fuel and oil leaks.
Replace damaged parts with new ones.
Keep safety in your mind.
FUEL PIPE REPLACEMENT
Replace the fuel pipe every 1 year.
If the fuel leakage is found on the fuel
pipe, replace it immediately.
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