Engine, 3.0L V6, twin turbo, DI, DOHC, VVT, automatic stop/start

Years 2016–19 Models 1 Factory citations 2

Also described as Engine, 3.0L V6, twin turbo

Documented applications

CT6 — Omega (2016–2020)

2016–2017 Single-source

2016 and 2017 rest on GM Authority's LGW engine page (the CT6 2016–2019, with the 8 speed 8L90 M5X; the engine left the CT6 for 2020) and the NICB manuals, which list 3.0L twin turbo series in 2016–2019; the 2017 fleet guide has no 3.0L column
2018–2019 Factory-verified

2018: Luxury, Premium Luxury, Platinum 3.0L twin turbo AWD: S (404 hp at 5700 rpm, 400 lb-ft at 2500–5100 rpm), with M5X; 2019: Platinum and Sport 3.0L twin turbo AWD: S, with MHS (SAE certification pending); both from the 2018 and 2019 CT6 order guides (GM documents)

GM factory document — 2018 cadillac ct6 order guide copy gm authority, p.61.
GM factory document — 2019 cadillac ct6 order guide copy gm authority, p.52, p.55.

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