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    Fuzzy match across codes, option descriptions, and model aliases. Every result is graded and, where the factory documents it, cited.
    LH0 Single-source

    Oldsmobile · Regular Production Option

    Engine, 3.1L (191 cu in) V6, multiport fuel injection

    Years 1989–93 Models 1 Factory citations 3
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    Also documented for BuickChevroletPontiac

    Documented applications

    Cutlass Supreme — W-body (1988–1997)
    • 1989–1993 Single-source

      140 hp; Wikipedia's Cutlass Supreme engine table prints LH0 for 1989–1993 and its 60° V6 article lists the car under LH0 for 1989–1993 (not independent); the W-Body Page dates the 3.1L Gen II V6 1989–1993 without a code; 1989–1990 rest on Wikipedia, as the listed 1990 kit page carries only an issue date in the model-year field; the kits print LHO (letter O); shared W-body code; cited from the Chevrolet Lumina kit (1991–1993)

      GM Heritage factory kit — 1991 Chevrolet Lumina, p.18.
      GM Heritage factory kit — 1992 Chevrolet Lumina, p.6.
      GM Heritage factory kit — 1993 Chevrolet Lumina, p.18.

    This page aggregates every documented appearance of LH0 in the Oldsmobile reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.