Is there visible wear o r breakage on the rubber seal inside the fuel cap that could cause poor sealing?

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Is there visible wear o r breakage on the rubber seal inside the fuel cap that could cause poor sealing?

A worn-out rubber gasket can lead to loose sealing and system pressure loss. Have you inspected the condition of the inner rubber ring?

Sandeep asked on 07 Aug 2025 13:05:45 pm

1 Answer

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Car Mechanic Expert - on 07 Aug 2025 13:14:18 pm

Yes, many users who experienced sealing problems later found that the inner rubber ring gasket was hardened, cracked, o r flattened, especially in older vehicles o r those exposed to heat. A worn seal directly affects the cap’s ability to maintain tank pressure.