Engine, diesel, 4.3L V6, 263 cu in

Years 1985, 2006–07 Models 3 Factory citations 2

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Also described as Engine, gas, 8 cylinder, 6.0L, sequential fuel injection, aluminum, high output, GM

Also documented for Buick Chevrolet Oldsmobile Pontiac

Documented applications

CTS — Sigma / GMX320 (2003–2007)

2006–2007 Factory-verified

only in: CTS-V (Wikipedia). The 2006 list prints LS2 as a 2.8L V6 DOHC engine; the 2007 list and GM's other lists read it as the 6.0L V8, which is used here.

GM factory document — 2006 cadillac cts rpo code list, p.1.
GM factory document — 2007 cadillac cts rpo code list, p.1.

DeVille — C-body front-drive (1985–1993)

1985 Single-source

optional, 85 hp; Wikipedia's Oldsmobile diesel article lists the 1985 Cadillac de Ville among the front-drive LS2's applications (with the Buick Electra, Cadillac Fleetwood and Oldsmobile Ninety-Eight, which share the engine on the same platform), and its DeVille article says the diesel was optional for 1985 and dropped the following year; decoderpo.com's LS2 entry reads as a 6.0L V8, a different meaning, so it gives no support; single-source

Fleetwood — C-body front-drive (1985–1992)

1985 Single-source

Wikipedia's Oldsmobile diesel engine article lists the 1985 Cadillac Fleetwood among the applications of the front-drive LS2 (with the Buick Electra, Cadillac de Ville and Oldsmobile Ninety-Eight), and its Fleetwood article lists the 4.3L LS2 diesel V6 in the front-drive engine list and table; decoderpo.com's LS2 entry reads as a 6.0L V8, a different meaning, so it gives no support; the Wikipedia articles are one source; single-source

This page aggregates every documented appearance of LS2 in the Cadillac reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.