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Checked oil specs by engine

2019 Cadillac CTS oil capacity, type & filter

Multiple engine options are listed for the 2019 Cadillac CTS. Select your engine below before buying oil or a filter.

2019 Cadillac CTS oil specs by engine
Engine Capacity Oil Type Filter
2.0L 4-Cyl Turbo 6 qt 5W-30 Purolator L11403
3.6L V6 Turbo — 5W-30 Purolator PL21495
6.2L V8 10 qt — CHAMP / LUBER-FINER PH10064

Match one of 3 checked engine options before buying oil or a filter.

2.0L 4-Cyl Turbo
Capacity 6 qt i Based on 3 checked sources: Pennzoil OATS, AMSOIL Lookup, and Castrol (Olyslager). Additional cross-check is still pending: 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 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
Purolator Shown first L11403 Search L11403 CHAMP / LUBER-FINER PH10064 Search PH10064 AMSOIL EA15K50 Search EA15K50 AMSOIL EA15K01 Search EA15K01 AMSOIL EA15K02 Search EA15K02 AMSOIL EA15K03 Search EA15K03

Purolator L11403 is copied into the checkout checklist below. Other listed filters are source-backed alternatives.

3.6L V6 Turbo
Capacity Not confirmed Confirm the service-fill amount for this engine before adding oil.
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
Purolator Shown first PL21495 Search PL21495 PRO-TEC PXL10255 Search PXL10255 AMSOIL EA15K01 Search EA15K01 AMSOIL EA15K02 Search EA15K02 AMSOIL EA15K03 Search EA15K03 AMSOIL EA15K04 Search EA15K04

Purolator PL21495 is copied into the checkout checklist below. Other listed filters are source-backed alternatives.

6.2L V8
Capacity 10 qt i Based on 1 checked source: Pennzoil OATS. 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 Not confirmed Confirm the viscosity grade for this engine before checkout.
Oil Filters
CHAMP / LUBER-FINER Shown first PH10064 Search PH10064

Confirm Champ PH10064 in the retailer selector before checkout.

i Based on 1 checked source: RockAuto. Additional cross-check is still pending: another filter catalog cross-check and alternate part-number support. Use it as a reference, then confirm the exact filter part number at checkout. See how we verify. Learn how we verify fitment

5 sources checked Last checked: 2026-06-23 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.

2019 Cadillac CTS 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.

Verify before checkout

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

Source coverage for the 2019 Cadillac CTS

Capacity sources

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

Oil type sources

Supported by Pennzoil OATS and Castrol (Olyslager).

Filter sources

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

Source coverage

5 checked source rows for the 2019 Cadillac CTS.

Before ordering for this 2019 Cadillac CTS

Checkout verification checklist
2.0L 4-Cyl Turbo Buy →
Capacity
6 qt
Oil type
5W-30
Interval
12 mo
Filter
Purolator L11403
3.6L V6 Turbo Buy →
Capacity
Unverified
Oil type
5W-30
Interval
12 mo
Filter
Purolator PL21495
6.2L V8 Buy →
Capacity
10 qt
Oil type
Unverified
Filter
Champ PH10064

Source check: Last checked 2026-06-23 from Pennzoil OATS, Purolator Part Finder, RockAuto, AMSOIL Lookup, and Castrol (Olyslager).

Cadillac CTS oil specs by year

This table includes checked Cadillac CTS model years available in our database.

Year Capacity Oil type Filter
2019 Current page 6 qt (multiple engines) 5W-30 Purolator L11403
2018 6 qt (multiple engines) 5W-30 AMSOIL EA15K50
2017 6 qt (multiple engines) 5W-30 AMSOIL EA15K50
2016 7 qt (multiple engines) 5W-30 AMSOIL EA15K01
2015 6 qt (multiple engines) 5W-30 Purolator L11403
2014 6 qt (multiple engines) 5W-30 AMSOIL EA15K28
2013 6 qt (multiple engines) 5W-30 AMSOIL EA15K28
2012 6 qt (multiple engines) 5W-30 AMSOIL EA15K28
2011 6 qt (multiple engines) 5W-30 AMSOIL EA15K28
2010 6 qt (multiple engines) 5W-30 AMSOIL EA15K28
2009 6 qt (multiple engines) 5W-30 AMSOIL EA15K28
2008 6 qt 5W-30 AMSOIL EA15K28
2007 6 qt (multiple engines) 5W-30 AMSOIL EA15K28
2006 6 qt (multiple engines) 5W-30 AMSOIL EA15K28
2005 6 qt (multiple engines) 5W-30 AMSOIL EA15K28

How we verified 2019 Cadillac CTS oil data

How we verify fitment

Checked fitment data. Last checked: 2026-06-23.

This page checked 5 sources for the 2019 Cadillac CTS. 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: 2.0L 4-Cyl Turbo capacity, 6.2L V8 capacity, and 6.2L V8 oil filter. 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
5
Last checked
2026-06-23
Field-level source support
  • Capacity: Pennzoil OATS, AMSOIL Lookup, and Castrol (Olyslager)
  • Oil type: Pennzoil OATS and Castrol (Olyslager)
  • Filter: Purolator Part Finder, RockAuto, and AMSOIL Lookup
  • Change interval: Pennzoil OATS and Castrol (Olyslager)
Source Supports Checked Link
Pennzoil OATS Capacity, Oil type 2026-06-23 Visit brand site
Purolator Part Finder Filter 2026-06-23 Visit brand site
RockAuto Filter 2026-06-23 Checked source
AMSOIL Lookup Capacity, Filter 2026-06-23 Visit brand site
Castrol (Olyslager) Capacity, Oil type 2026-06-23 Visit brand site

2019 Cadillac CTS 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.

Look up another vehicle

Find checked oil capacity, type, and filter data by exact year, make, and model.

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