Gmc · Sierra 1500 L3B MY2025 US · 2025

Gmc Sierra 1500 Sierra 1500 L3B MY2025 US Fuel tank capacity

What is the fuel tank capacity of a Gmc Sierra 1500 Sierra 1500 L3B MY2025 US?Standard/short box: 90.8 L (24.0 US gal). Long box: 107.1 L (28.3 US gal). Approximate fuel tank capacities; identify the box and drivetrain before selecting a value.

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At a glance

Vehicle
Gmc Sierra 1500 Sierra 1500 L3B MY2025 US
Fuel tank capacity
Standard/short box: 90.8 L (24.0 US gal). Long box: 107.1 L (28.3 US gal). Approximate fuel tank capacities; identify the box and drivetrain before selecting a value.
Manufacturer source
General Motors
Verified

Standard/short box: 90.8 L (24.0 US gal). Long box: 107.1 L (28.3 US gal). Approximate fuel tank capacities; identify the box and drivetrain before selecting a value. Verified against the exact US MY2025 manufacturer manual.

Reference details

Check before you buy or service: Sierra 1500 L3B MY2025 US. Conditional decision table, not a universal tank capacity. Box length and drivetrain are not inferred from engine RPO.

Source

General Motors manufacturer referenceGeneral Motors
Open manufacturer source ↗

Last verified by CarFactBook:

Same question · different chassis

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Fuel tank capacity is published for these other exact codes. Compare the sourced answer and vehicle scope before using a value.

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Other chassis of the Gmc Sierra 1500 have independently documented answers. Compare all 4 exact-code fuel tank references →

The same question, different cars

Manufacturer documentation can give different answers for different engines, configurations and model codes. These are independently sourced entries for the same reference topic, not interchangeable parts or service instructions.

Gmc Sierra 1500Sierra 1500 L84 MY2025 US2025
Fuel tank capacityStandard/short box: 90.8 L (24.0 US gal). Long box: 107.1 L (28.3 US gal). Approximate fuel tank capacities; identify the box and drivetrain before selecting a value.Check the exact variant and source limitationsGeneral Motors · verified 2026-11-03
Read the sourced answer ↗Vehicle profile →
Honda FitGP52013–2020
Fuel tank capacity40 L; base HYBRID FF grade 32 LCheck the exact variant and source limitationsHonda Motor Co. · verified 2026-10-01
Read the sourced answer ↗Vehicle profile →
Honda GraceGM42014–2020
Fuel tank capacity40 LCheck the exact variant and source limitationsHonda Motor Co. · verified 2026-10-01
Read the sourced answer ↗Vehicle profile →
Honda VezelRU32013–2021
Fuel tank capacity40 LHonda Motor Co. · verified 2026-09-27
Read the sourced answer ↗Vehicle profile →

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What owners usually check next

Engine oil capacity5.5 US qt (5.2 L) with an aluminum oil pan, or 6.0 US qt (5.7 L) with a plastic oil pan, with filter; identify the installed pan before filling (GM TechLink MY2025 chart)12V battery12-volt Absorbed Glass Mat (AGM) battery for the factory Stop/Start system. Match the replacement number on the original battery label; case size and Ah rating are not specified here.Smart-key batteryCR2450 lithium or equivalent remote-key battery; install positive side up.Coolant capacity11.8 L (12.4 US qt) approximate entire engine cooling system capacity; recheck the level after filling.Engine codeL3B, GM engine RPO (GM TechLink MY2025 chart)Engine displacement2.7 L (GM TechLink MY2025 chart)Powertrain designation2.7 L inline-4 (L4) gasoline; turbocharged; DOHC; SIDI with VVT (GM body builder VIN engine table)

View every owner answer for Gmc Sierra 1500 Sierra 1500 L3B MY2025 US →