Fuel, additional three gallons

Years 1998–02, 2023, 2025–27 Models 4 Factory citations 17

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Also described as Fuel, additional 3 gallons

Also documented for Chevrolet Oldsmobile

Documented applications

Jimmy — second generation (1995–2001)

2000 Factory-verified

GM factory document — 2000 gmc jimmy 4wd rpo code list, p.1.

Savana — GMT600 (1996–2002)

1998–2002 Factory-verified

GM factory document — 1998 gmc savana rpo code list, p.1.
GM factory document — 1999 gmc savana rpo code list, p.1.
GM factory document — 2000 gmc savana rpo code list, p.1.
GM factory document — 2001 gmc savana rpo code list, p.1.
GM factory document — 2002 gmc savana rpo code list, p.1.

Savana — GMT610 (2003–2027)

2023, 2025–2027 Factory-verified

O: Cargo 1WT, Cutaway 1WT, Cutaway 2WT (2025–2026), Passenger 1LS, Passenger 1LT

GM factory document — 2023 chevrolet 23 express savana body builder sm en us 2022sep13, p.12.
GM factory document — 2025 gmc savana cargo fleet order guide, p.40.
GM factory document — 2025 gmc savana cutaway fleet order guide, p.49.
GM factory document — 2025 gmc savana passenger fleet order guide, p.30.
GM factory document — 2026 gmc savana cargo fleet order guide, p.42.
GM factory document — 2026 gmc savana cutaway fleet order guide, p.53.
GM factory document — 2026 gmc savana passenger fleet order guide, p.32.
GM factory document — 2027 gmc savana cargo fleet order guide, p.39.
GM factory document — 2027 gmc savana cutaway fleet order guide, p.28.
GM factory document — 2027 gmc savana passenger fleet order guide, p.30.

Sonoma — second generation (1994–2004)

2000 Factory-verified

GM factory document — 2000 gmc sonoma pickup 4wd rpo code list, p.1.

This page aggregates every documented appearance of 8E1 in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.