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2018 GMC Sierra 1500 oil capacity, type & filter

The 2018 GMC Sierra 1500 takes 6 qt of 5W-30 (4.3L V6) and 8 qt of 0W-20 (5.3L V8 Hybrid) and 8 qt of 0W-20 (6.2L V8) and 6 qt of 5W-30 (6.0L V8) and 10 qt of 5W-40 (6.6L V8 Diesel). Select your engine below before buying.

2018 GMC Sierra 1500 oil specs by engine
Engine Capacity Oil Type Filter
4.3L V6 6 qt 5W-30 AMSOIL EA15K01
5.3L V8 Hybrid 8 qt 0W-20 AMSOIL EA15K01
6.2L V8 8 qt 0W-20 AMSOIL EA15K01
6.0L V8 6 qt 5W-30 —
6.6L V8 Diesel 10 qt 5W-40 —

Match one of 5 checked engine options before buying oil or a filter. Also check 2018 GMC Sierra .

4.3L V6
Capacity 6 qt i Capacity condition is not listed in the checked data, so confirm whether the service-fill amount includes a new filter before adding oil. See how we verify. Learn how we verify fitment Verified fit Buy at least 6 qt total; listed capacity is 6 qt.
Oil type 5W-30 OEM oil approval is not source-backed on this page; confirm the bottle or owner's manual before checkout. Verified fit
Oil Filters Options cross-checked
AMSOIL Shown first EA15K01 Search EA15K01 AMSOIL EA15K02 Search EA15K02 AMSOIL EA15K03 Search EA15K03 AMSOIL EA15K04 Search EA15K04 PRO-TEC PXL10255 Search PXL10255 Purolator L22500 Search L22500

AMSOIL EA15K01 is copied into the checkout checklist below. Other listed filters are source-backed alternatives.

5.3L V8 Hybrid
Capacity 8 qt i Capacity condition is not listed in the checked data, so confirm whether the service-fill amount includes a new filter before adding oil. See how we verify. Learn how we verify fitment Verified fit Buy at least 8 qt total; listed capacity is 8 qt.
Oil type 0W-20 OEM oil approval is not source-backed on this page; confirm the bottle or owner's manual before checkout. Verified fit
Oil Filters Options cross-checked
AMSOIL Shown first EA15K01 Search EA15K01 AMSOIL EA15K02 Search EA15K02 AMSOIL EA15K03 Search EA15K03 AMSOIL EA15K04 Search EA15K04 PRO-TEC PXL10255 Search PXL10255 WIX PTL10255 Search PTL10255 Purolator L22500 Search L22500

AMSOIL EA15K01 is copied into the checkout checklist below. Other listed filters are source-backed alternatives.

6.2L V8
Capacity 8 qt Verified fit Buy at least 8 qt total; listed capacity is 8 qt (Service fill).
Oil type 0W-20 OEM oil approval is not source-backed on this page; confirm the bottle or owner's manual before checkout. Verified fit
Oil Filters Options cross-checked
AMSOIL Shown first EA15K01 Search EA15K01 AMSOIL EA15K02 Search EA15K02 AMSOIL EA15K03 Search EA15K03 AMSOIL EA15K04 Search EA15K04 PRO-TEC PXL10255 Search PXL10255 Purolator L22500 Search L22500

AMSOIL EA15K01 is copied into the checkout checklist below. Other listed filters are source-backed alternatives.

6.0L V8
Capacity 6 qt i Based on 1 checked source: Valvoline Product Finder. Additional cross-check is still pending: a second checked capacity source and capacity condition (service fill / with filter vs dry fill). Use it as a reference, then confirm the service-fill / with-filter amount before adding oil. See how we verify. Learn how we verify fitment
Oil type 5W-30 i Based on 1 checked source: Valvoline Product Finder. Additional cross-check is still pending: a second checked oil-type source. Use it as a reference, then confirm the viscosity grade for this engine before checkout. See how we verify. Learn how we verify fitment OEM oil approval is not source-backed on this page; confirm the bottle or owner's manual before checkout.
Oil Filters
No checked filter listed Use a retailer fitment tool to confirm the exact part number before ordering.
6.6L V8 Diesel
Capacity 10 qt i Based on 1 checked source: Valvoline Product Finder. Additional cross-check is still pending: a second checked capacity source and capacity condition (service fill / with filter vs dry fill). Use it as a reference, then confirm the service-fill / with-filter amount before adding oil. See how we verify. Learn how we verify fitment
Oil type 5W-40 i Based on 1 checked source: Valvoline Product Finder. Additional cross-check is still pending: a second checked oil-type source. Use it as a reference, then confirm the viscosity grade for this engine before checkout. See how we verify. Learn how we verify fitment OEM oil approval is not source-backed on this page; confirm the bottle or owner's manual before checkout.
Oil Filters
No checked filter listed Use a retailer fitment tool to confirm the exact part number before ordering.

6 sources checked Last checked: 2026-06-27 How we verify →

Where to Buy View Data Sources
Buy oil & filters:
Walmart → AutoZone → Amazon → O'Reilly →
Full synthetic options for 5W-30
Mobil 1 Extended Performance 5W-30 → Castrol Edge 5W-30 → Pennzoil Platinum 5W-30 →

Search paths only — confirm your OEM viscosity spec and quantity before checkout.

Full synthetic options for 0W-20
Mobil 1 Extended Performance 0W-20 → Castrol Edge 0W-20 → Pennzoil Platinum 0W-20 →

Search paths only — confirm your OEM viscosity spec and quantity before checkout.

Full synthetic options for 5W-40
Mobil 1 ESP Formula 5W-40 → Castrol Edge 5W-40 → Liqui Moly Top Tec 4200 5W-40 →

Search paths only — confirm your OEM viscosity spec and quantity before checkout.

2018 GMC Sierra 1500 oil specs: capacity conditions and filter notes

Which engine applies?

Check the door jamb sticker, owner's manual, or displacement badge on the engine cover. Match it to the engine options listed above before buying oil or a filter.

Filter part numbers

All listed filter part numbers are compatible alternatives for your vehicle. Choose any one brand, then confirm the exact part number at checkout.

Capacity condition

With filter means the volume includes a new filter. Service fill is the typical drain-and-fill amount. Dry fill is for a fresh empty engine only.

Filter status

Filter fitment has not been fully verified for every engine listed. Confirm the part number with the retailer before ordering.

Verify before checkout

Retailer fitment tools may use different data. Confirm oil capacity, viscosity, and filter part number before ordering.

Source coverage for the 2018 GMC Sierra 1500

Capacity sources

Supported by Pennzoil OATS, Valvoline Product Finder, AMSOIL Lookup, and Castrol (Olyslager).

Oil type sources

Supported by Pennzoil OATS, AMSOIL Lookup, Valvoline Product Finder, and Castrol (Olyslager).

Filter sources

Supported by RockAuto, Purolator Part Finder, and AMSOIL Lookup.

Source coverage

6 checked source rows for the 2018 GMC Sierra 1500.

Before ordering for this 2018 GMC Sierra 1500

Checkout verification checklist
4.3L V6 Verified fit Buy →
Capacity
6 qt
Oil type
5W-30
Interval
7,500 mi / 12 mo
Filter
AMSOIL EA15K01
5.3L V8 Hybrid Verified fit Buy →
Capacity
8 qt
Oil type
0W-20
Interval
7,500 mi / 12 mo
Filter
AMSOIL EA15K01
6.2L V8 Verified fit Buy →
Capacity
8 qt (Service fill)
Oil type
0W-20
Interval
7,500 mi / 12 mo
Filter
AMSOIL EA15K01
6.0L V8 Buy →
Capacity
6 qt
Oil type
5W-30
Filter
Unverified
6.6L V8 Diesel Buy →
Capacity
10 qt
Oil type
5W-40
Filter
Unverified

Source check: Last checked 2026-06-27 from AMSOIL Lookup, Pennzoil OATS, RockAuto, Purolator Part Finder, Valvoline Product Finder, and Castrol (Olyslager).

GMC Sierra 1500 oil specs by year

This table includes checked GMC Sierra 1500 model years available in our database.

Year Capacity Oil type Filter
2025 6 qt (multiple engines) 5W-30 WIX 51032
2024 6 qt (multiple engines) 5W-30 Purolator L11424
2023 6 qt (multiple engines) 5W-30 PRO-TEC PXL10351
2022 6 qt (multiple engines) 5W-30 Purolator L11424
2021 6 qt (multiple engines) 5W-30 Purolator L11424
2020 6 qt (multiple engines) 5W-30 WIX 51032
2019 8 qt (multiple engines) 0W-20 AMSOIL EA15K01
2018 Current page 6 qt (multiple engines) 5W-30 AMSOIL EA15K01
2017 6 qt (multiple engines) 5W-30 AMSOIL EA15K01
2016 6 qt (multiple engines) 5W-30 PRO-TEC PXL10255
2015 6 qt (multiple engines) 5W-30 PRO-TEC PXL10255
2014 6 qt (multiple engines) 5W-30 PRO-TEC PXL10255
2013 4.5 qt (multiple engines) 5W-30 CHAMP / LUBER-FINER PH47
2012 6 qt (multiple engines) 5W-30 Purolator L12222
2011 4.5 qt (multiple engines) 5W-30 CHAMP / LUBER-FINER PH47
2010 6 qt (multiple engines) 5W-30 CHAMP / LUBER-FINER PH48
2009 4.5 qt (multiple engines) 0W-30 AMSOIL EA15K29
2008 4.5 qt (multiple engines) 5W-30 AMSOIL EA15K29
2007 4.5 qt (multiple engines) 5W-30 AMSOIL EA15K29
2006 4.5 qt (multiple engines) 5W-30 CHAMP / LUBER-FINER PH47
2005 6 qt (multiple engines) 0W-30 AMSOIL EA15K32

How we verified 2018 GMC Sierra 1500 oil data

How we verify fitment

Checked fitment data. Last checked: 2026-06-27.

This page checked 6 sources for the 2018 GMC Sierra 1500. The table lists which checked source contributed capacity, oil type, or filter evidence.

We checked leading oil brands and aftermarket filter catalogs so you don't have to.

Confidence
Cross-check pending i Some oil fields are based on checked source data but still need stronger cross-check evidence. Review area: 6.0L V8 capacity, 6.0L V8 oil type, 6.6L V8 Diesel capacity, and 6.6L V8 Diesel oil type. Use the listed values as references and confirm the exact engine before ordering or adding oil. See how we verify. Learn how we verify fitment
Sources checked
6
Last checked
2026-06-27
Field-level source support
  • Capacity: Pennzoil OATS, Valvoline Product Finder, AMSOIL Lookup, and Castrol (Olyslager)
  • Oil type: Pennzoil OATS, AMSOIL Lookup, Valvoline Product Finder, and Castrol (Olyslager)
  • Filter: RockAuto, Purolator Part Finder, and AMSOIL Lookup
  • Change interval: Pennzoil OATS, AMSOIL Lookup, Valvoline Product Finder, and Castrol (Olyslager)
Source Supports Checked Link
AMSOIL Lookup Capacity, Filter, Oil type 2026-06-27 Visit brand site
Pennzoil OATS Capacity, Oil type 2026-06-27 Visit brand site
RockAuto Filter 2026-06-27 Checked source
Purolator Part Finder Filter 2026-06-27 Visit brand site
Valvoline Product Finder Capacity, Oil type 2026-06-27 Checked source
Castrol (Olyslager) Capacity, Oil type 2026-06-27 Visit brand site

2018 GMC Sierra 1500 maintenance checklist

One part checked. Look up the rest while you're here.

Where to buy

These are retailer search paths for your vehicle. The specs above are checked — use the retailer's vehicle selector at checkout to confirm before ordering.

This section may include affiliate or sponsored retailer links. They are purchase paths, not fitment evidence.

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