RPOARCHIVE
Loading index…

    Fuzzy match across codes, option descriptions, and model aliases. Every result is graded and, where the factory documents it, cited.
    Y-66 Confirmed

    Oldsmobile · Regular Production Option

    SX package (appears un-yeared in both CSM-derived lists)

    Years 1975–82 Models 1

    Documented applications

    Starfire / Omega
    • 1975+ Confirmed

      "Starfire SX" was marketed as the upmarket model; code-to-model mapping not explicit in sources

      Grade note: confirmed (code exists), application unclear

    This page aggregates every documented appearance of Y-66 in the Oldsmobile reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.