- 1984, 1986–1987 Single-source
printed as base equipment; 1985 is left out because the page that prints it carries no model-year field, and the 1988 listed pages do not print it; shared A-body code; cited from the Chevrolet Celebrity kits; no Ciera source names it, so the row rests on the kit pages alone
GM Heritage factory kit — 1984 Chevrolet Celebrity, p.41.GM Heritage factory kit — 1986 Chevrolet Celebrity, p.41.GM Heritage factory kit — 1987 Chevrolet Celebrity, p.41.
J50 Single-source
Also documented for BuickChevroletGMCPontiac
Documented applications
This page aggregates every documented appearance of J50 in the Oldsmobile reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.