FHS Factory-verified

Chevrolet · Regular Production Option

E85 FlexFuel capable

Years 2014–20, 2022–26 Models 6 Factory citations 25

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Also described as Fuel capability, E85 FlexFuel, 2.4L DOHC 4-cylinder engineVehicle fuel, gasoline E85

Also documented for Buick GMC

Documented applications

Equinox — Second generation (2010–2017)

2015 Factory-verified

O on all trims, with FE9 Federal emissions only; included on fleet and government orders

GM factory document — 2015 chevrolet equinox fleet order guide wayback, p.4.
2017 Factory-verified

O on all trims, with FE9 Federal emissions only; included on fleet and government orders

GM factory document — 2017 chevrolet equinox order guide copy gm authority, p.26.

Express — GMT610 (2003–2027)

2014–2018, 2023 Factory-verified

GM factory document — 2014 chevrolet gh van elec bbm si brief, p.6.
GM factory document — 2015 chevrolet express savana electrical body builders manual service manual 2015 en us, p.12.
GM factory document — 2016 chevrolet express savana electrical body builders manual service manual 2016 en us, p.7.
GM factory document — 2017 chevrolet express savana electrical body builders manual service manual 2017 en us, p.7.
GM factory document — 2018 chevrolet 18 express savana bodybuilders sm 2017nov06, p.15.
GM factory document — 2023 chevrolet 23 express savana body builder sm en us 2022sep13, p.14.

Silverado HD (T1XX, 2020–2027)

2023, 2025–2026 Factory-verified

only in: 2500 HD, 3500 HD

GM factory document — 2023 chevrolet 23silverado 2500 3500hd electrical body builder sm en us 2022oct12, p.11.
GM factory document — 2025 chevrolet silverado 2500 hd retail and fleet fleet order guide rpo codes, p.1.
GM factory document — 2026 chevrolet silverado 2500 hd retail and fleet fleet order guide rpo codes, p.1.

Silverado — K2XX (2014–2019)

2015, 2017 Factory-verified

GM factory document — 2015 chevrolet silverado 1500 fleet order guide wayback, p.1.
GM factory document — 2017 chevrolet sierra silverado electrical body builders manual service manual 2017 en us, p.18.

Silverado — T1XX (2019–2026)

2020, 2022–2026 Factory-verified

GM factory document — 2020 chevrolet silverado 1500 fleet order guide wayback, p.1.
GM factory document — 2022 chevrolet 22 silverado 1500 new electrical body builder 042822, p.11.
GM factory document — 2023 chevrolet 23 silverado 1500 electrical body builder sm en us 2022oct24, p.11.
GM factory document — 2024 chevrolet 24 silverado1500 electrical body builder 2023nov29, p.13.
GM factory document — 2025 chevrolet silverado 1500 retail and fleet fleet order guide rpo codes, p.1.
GM factory document — 2026 chevrolet silverado 1500 retail and fleet fleet order guide rpo codes, p.1.

Tahoe — K2XX (2015–2020)

2016–2019 Factory-verified

2016: Police Vehicle, Special Service: S; the lists read gasoline E85 vehicle fuel; 2018–2019 from GM's 2018 and 2019 Tahoe order guides (GM Authority copies)

GM factory document — 2016 chevrolet tahoe police vehicle fleet order guide wayback, p.4, p.5.
GM factory document — 2016 chevrolet tahoe special service vehicle fleet order guide wayback, p.4, p.5.
GM factory document — 2016 chevrolet escalade escalade esv suburban tahoe yukon yukon xl electrical body builders manual service manual 2016 en us, p.7.
GM factory document — 2017 chevrolet escalade escalade esv suburban tahoe yukon yukon xl electrical body builders manual service manual 2017 en us 1, p.18.
GM factory document — 2018 chevrolet tahoe order guide copy gm authority, p.4.
GM factory document — 2019 chevrolet tahoe order guide copy gm authority, p.4.

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