2021 Cadillac CT4 Oil type
Depends on your engine. Choose yours, or compare them here.
- LSY 2.0L L4 turbo engine 0W-20
- L3B 2.7L L4 turbo engine 5W-30
0W-20
LSY 2.0L L4 turbo engine
5W-30
L3B 2.7L L4 turbo engine
2021 Cadillac CT4 Owner's Manual, PDF page 314
For the LSY 2.0L L4 turbo engine, use SAE 0W-20 viscosity grade engine oil.Open the manual at this page ↗Added Oct 16, 2026
See where it's printed
Oil type · LSY 2.0L L4 turbo engine · PDF page 314
For the LSY 2.0L L4 turbo engine, use SAE 0W-20 viscosity grade engine oil.
Oil type · L3B 2.7L L4 turbo engine · PDF page 314
For the L3B 2.7L L4 turbo engine, use SAE 5W-30 viscosity grade engine oil.
2021 Cadillac CT4 Owner's Manual, PDF page 314
For the LSY 2.0L L4 turbo engine, use SAE 0W-20 viscosity grade engine oil.Open the manual at this page ↗Added Oct 16, 2026
See where it's printed
Oil type · LSY 2.0L L4 turbo engine · PDF page 314
For the LSY 2.0L L4 turbo engine, use SAE 0W-20 viscosity grade engine oil.
2021 Cadillac CT4 Owner's Manual, PDF page 314
For the L3B 2.7L L4 turbo engine, use SAE 5W-30 viscosity grade engine oil.Open the manual at this page ↗Added Oct 16, 2026
See where it's printed
Oil type · L3B 2.7L L4 turbo engine · PDF page 314
For the L3B 2.7L L4 turbo engine, use SAE 5W-30 viscosity grade engine oil.
See every quote (2 values)
All versions
| Applies to | Value | Manual says | Page |
|---|---|---|---|
| LSY 2.0L L4 turbo engine | 0W-20 | “For the LSY 2.0L L4 turbo engine, use SAE 0W-20 viscosity grade engine oil.” | PDF page 314 ↗ |
| L3B 2.7L L4 turbo engine | 5W-30 | “For the L3B 2.7L L4 turbo engine, use SAE 5W-30 viscosity grade engine oil.” | PDF page 314 ↗ |
Scroll the table to see the quote and page →
For LSY 2.0L L4 turbo engine
For L3B 2.7L L4 turbo engine
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