3.8 L (231 cu in) V6, sequential fuel injection (VIN B)

Years 1986–88 Models 2

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Also described as Engine, 3.8L V6, sequential fuel injection

Also documented for Oldsmobile

Documented applications

Century — A-body (1982–1996)

1986–1988 Single-source

Only the parts catalog lists it for the Century, beside LG3; Wikipedia gives the Century only the VIN 3 engine

Riviera — E-body (1986–1993)

1986 Disputed

Wikipedia's Riviera article names LG2 as the 1986 engine, and its Buick V6 article lists the 1986 Riviera under LG2 (VIN code B, flat lifters); the two articles are one source; disputed: Wikipedia reads LG2 and gnttype.org reads LG3 for the 1986 Riviera; no Riviera source of the archive prints the code except Wikipedia; gnttype.org's 1986 Buick VIN table prints LG3, not LG2, for the Riviera Luxury, a same-year conflict between the two sources, left unsettled, so the 1986 year of LG3 is not claimed; decoderpo.com's GM-wide dictionary reads LG2 as the 3.8L V6 sequential fuel injection engine (VIN 3.8B) but names no vehicle

This page aggregates every documented appearance of LG2 in the Buick reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.