The Cadillac XT6 uses full-synthetic engine oil that meets GM’s dexos1 specification. Viscosity depends on which engine your XT6 has: the 2.0L turbo four-cylinder and the 3.6L V6 call for different weights, and those recommendations have stayed consistent since the engines were introduced. Below, we list oil types by model year (most recent first) and group years where the requirements are identical, based on GM owner’s manuals and technical publications.
Current–2022 Cadillac XT6 Oil Type
- 2.0L Turbo (LSY): SAE 0W-20 full-synthetic, GM dexos1; ~5.3 qt with filter.
- 3.6L V6 (LGX): SAE 5W-30 full-synthetic, GM dexos1; ~6.0 qt with filter.
These specs are consistent across these years, and the extreme-cold 0W-30 provision still applies. GM’s technical oil-capacity tables for 2022–2023 confirm the same engine/viscosity pairings.
2021 Cadillac XT6 Oil Type (Introduction of the 2.0L)
2021 is the first year the XT6 offered both engines, and the oil guidance matches later years:
- 2.0L Turbo (LSY): SAE 0W-20 full-synthetic, GM dexos1; ~5.3 qt with filter.
- 3.6L V6 (LGX): SAE 5W-30 full-synthetic, GM dexos1; ~6.0 qt with filter.
GM also allows SAE 0W-30 for extreme cold starts below −29 °C (−20 °F).
2020 Cadillac XT6 Oil Type (3.6L Only)
At launch, the XT6 used only the 3.6L V6. The owner’s manual specifies:
- 3.6L V6 (LGX): SAE 5W-30 full-synthetic, GM dexos1; ~6.0 qt with filter. In extreme cold (below −29 °C / −20 °F), SAE 0W-30 may be used.
What “dexos1” Means (and why we use it)
GM’s dexos1 certification is an oil performance standard designed for gasoline engines. Using a dexos1-approved full-synthetic oil protects against LSPI, oxidation, and deposits while meeting GM warranty requirements. We stock ACDelco dexos1 Gen 3 oils—the same spec GM lists for current vehicles—so your XT6 gets exactly what it was engineered to use.
Service Guidance from Turan-Foley Cadillac
Our technicians see both XT6 engines daily and follow the same sources GM uses (owner’s manuals and GM TechLink). We’ll confirm your engine code, temperature conditions, and oil-life monitor before selecting oil. That attention to detail ensures you get the correct dexos1 full-synthetic and the right fill every time—no guesswork, no generic “one-size” recommendations.
Conclusion
For Cadillac XT6 models, the rule of thumb is simple: use dexos1-approved full-synthetic. Choose SAE 0W-20 for the 2.0L turbo and SAE 5W-30 for the 3.6L V6, with 0W-30 permitted in extreme cold. Those recommendations are unchanged across 2021–2025, while 2020 applies the 3.6L guidance only. When you’re ready for service, the Turan-Foley Cadillac team in Gulfport will verify your engine, confirm capacities, and install GM-approved oil to spec. Schedule your oil change and let our Cadillac-certified staff keep your XT6 running like new.
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