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Chevrolet Suburban 2021 Fuel Requirements

Fuel requirements may vary by market, engine and model year. Always follow the owner's manual, fuel-door label or manufacturer instructions where available.

Verified engines and markets

Official regional source

Chevrolet Suburban 2021

Regular Fuel Accepted
Minimum91 RON
Recommended91 RON
Market
Saudi Arabia / GCC
Engine
5.3L V8
Powertrain
Internal combustion
Fuel type
Gasoline
Ethanol
E10
Fuel tank
106 L
Source & Verification

Chevrolet Suburban Regional Owner's Manual & Specification

Last verified
2026-10-06

Diesel 3.0 versions require diesel. Regular unleaded 91 RON or higher accepted.

What happens if I use a lower octane fuel?

Do not use a grade below the stated minimum. A higher number is not automatically better unless the manufacturer says so.

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Related years

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