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Home >> GMC >> 2018 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 268 (Engine Controls And Fuel - 3.6L (LGX LF4) - Description And Operation) >> Description and Operation >> Fuel System Description (LF4) >> Fuel Fill Pipe

Fuel Fill Pipe

WARNING: This page is about a different car, the 2017 Cadillac ATS. However, it is still accessible from the selected car via links, so may be relevant.

The fuel fill pipe has a built-in restrictor in order to prevent refueling with leaded fuel. A capless fuel fill is part of the fuel fill tube design. There is no fuel fill cap to remove. To fill the tank, open the locking fuel door and fully insert the fuel nozzle into the fill neck. Flapper valves close to seal this interface once the fill nozzle is removed.