Engine, 2.5 L (151 cu in) L4, throttle-body fuel injection

Years 1982–92 Models 2 Factory citations 6

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Also described as 2.5 L (151 cu in) L4, throttle-body fuel injection

Also documented for Buick Chevrolet Pontiac

Documented applications

Cutlass Ciera — A-body (1982–1996)

1982–1992 Single-source

Wikipedia's "Tech IV" four, the base engine; Ciera years: Wikipedia's Ciera engine tables (1982–1988, 1989–1992) and its Iron Duke article (1982–1992); neither prints the code, which is matched to the engine by meaning; shared A-body code; cited from the Chevrolet Celebrity kits, which print it for that car

GM Heritage factory kit — 1983 Chevrolet Celebrity, p.6.
GM Heritage factory kit — 1984 Chevrolet Celebrity, p.8.
GM Heritage factory kit — 1985 Chevrolet Celebrity, p.15.
GM Heritage factory kit — 1989 Chevrolet Celebrity, p.10.

Omega — X-body (1983–1984)

1983–1984 Single-source

the four-cylinder; matched to the Omega's unit by meaning: Wikipedia's Omega article names the 2.5 L Iron Duke four-cylinder but prints no code; shared X-body code; cited from the Chevrolet Citation kit, whose engine pages print it with its model year

GM Heritage factory kit — 1983 Chevrolet Citation, p.10.
GM Heritage factory kit — 1984 Chevrolet Citation, p.10.

This page aggregates every documented appearance of LR8 in the Oldsmobile reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.