![[Mechanic Advice Request] 2013 Subaru Outback P0031 Code (O2 sensor) Diagnosis - Mechanic recommends replacing all four sensors. Is that a good $500 investment if I'm at 150k miles? Here's the quote I received (incl. oil change, excl. timing chain leak ...](https://preview.redd.it/jdmae6h132e51.png?auto=webp&s=0fc438f98d11b808600af3aaddfca8093986f414 "[Mechanic Advice Request] 2013 Subaru Outback P0031 Code (O2 sensor) Diagnosis - Mechanic recommends replacing all four sensors. Is that a good $500 investment if I'm at 150k miles? Here's the quote I received (incl. oil change, excl. timing chain leak ...")
[Mechanic Advice Request] 2013 Subaru Outback P0031 Code (O2 sensor) Diagnosis - Mechanic recommends replacing all four sensors. Is that a good $500 investment if I'm at 150k miles? Here's the quote I received (incl. oil change, excl. timing chain leak ...
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