However, Subaru incorporated the new hoses into production starting with these VINS:
The new clamps are included with the new PCV hose assembly. 
Do not re-use the original PCV hose clamps. Only use the new clamps that come with the NEW PCV hose assembly.
Fix Subaru gas smell, oil smell in cabin
©, 2023 Rick Muscoplat
Posted on by Rick Muscoplat
منبع: https://ricksfreeautorepairadvice.com/subaru-gas-smell-oil-smell-in-cabin/
Subaru has determined thet the PCV hose assembly is the cause of the problem and has issued a redesigned PCV hose assembly for the vehicles listed below.
Vehicles affected with the gas smell
2020-2022 Legacy & Outback With the 2.4L Turbo
2019-2022 Ascent With the 2.4L Turbo
Hose Assembly-PCV 11815AC88D
Gasket-Intercooler 21896AA130
Gasket-Air Intake Duct 14497AA080
Subaru has issued a service bulletin and new PCV hose assembly to address a problem where owners have a gas smell or hot oil smell in the cabin. The Subaru gas smell is described by owners as a hot rubber, raw fuel or hot oil type smell coming into the cabin.
Cause of Subaru gas smell
Legacy N3012316
Outback N3180978
Ascent N3415317.