Engine, gas, 6 cylinder, 3.1 liter, multiport fuel injection, high output, V6

Years 1994–96, 1998–99 Models 4 Factory citations 6

Also described as 3.1 L (191 cu in) "3100" V6, sequential fuel injection (VIN M)Engine, 3.1L V6, sequential fuel injectionEngine, 3100 V6, sequential fuel injection

Also documented for Chevrolet GMC Oldsmobile Pontiac

Documented applications

Century — A-body (1982–1996)

1994–1996 Confirmed

1996: optional on the sedan, standard on the wagon

Century — W-body (1997–2005)

1998–1999 Factory-verified

Wikipedia gives the 3.1L L82 to the 1997–1999 Century

GM factory document — 1998 buick century rpo code list, p.1.
GM factory document — 1999 buick century rpo code list, p.1.

Regal — W-body (1988–1996)

1994–1996 Factory-verified

160 hp; Wikipedia's Regal engine list and its 60° V6 article give L82 to the Regal and date every year; 1994 from those Wikipedia articles, as the 1994 kit's listed pages do not print it; the merged lumina-gen2 and century-w-body docs read L82 from GM's 1998–1999 lists as multiport fuel injection, high output, while the 1995–1996 order guides cited here print SFI; shared W-body code; cited from the Chevrolet Lumina kit

GM Heritage factory kit — 1995 Chevrolet Lumina, p.10.
GM Heritage factory kit — 1996 Chevrolet Lumina, p.18.

Skylark — N-body (1992–1998)

1998 Factory-verified

shared N-body code; Chevrolet Malibu kit.

GM factory document — 1998 buick skylark rpo code list, p.1.
GM Heritage factory kit — 1998 Chevrolet Malibu, p.6.

This page aggregates every documented appearance of L82 in the Buick reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.