Fillpipe Restrictor: Description and Operation

1990 Subaru XT-6 4WD L6-2.7L SOHCSECTION Description and Operation
PURPOSE
Prevents inserting fuel fill nozzles that do not dispense unleaded gasoline into the tank fill opening.

LOCATION
In the fuel tank fill opening.

OPERATION
The opening in the tank fill pipe is a smaller diameter than the diameter of the leaded fuel fill nozzles. This prevents the larger nozzles from being used to add leaded fuel to the tank.

RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.