2020 Cadillac CT4 Oil type
Depends on your engine. Choose yours, or compare them here.
- 2.0L L4 turbo engine (LSY) 0W-20
- 2.7L L4 turbo engine (L3B) 5W-30
0W-20
2.0L L4 turbo engine (LSY)
5W-30
2.7L L4 turbo engine (L3B)
2020 Cadillac CT4 Owner's Manual, PDF page 244
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 · 2.0L L4 turbo engine (LSY) · PDF page 244
For the LSY 2.0L L4 turbo engine, use SAE 0W-20 viscosity grade engine oil.
Oil type · 2.7L L4 turbo engine (L3B) · PDF page 244
For the L3B 2.7L L4 turbo engine, use SAE 5W-30 viscosity grade engine oil.
2020 Cadillac CT4 Owner's Manual, PDF page 244
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 · 2.0L L4 turbo engine (LSY) · PDF page 244
For the LSY 2.0L L4 turbo engine, use SAE 0W-20 viscosity grade engine oil.
2020 Cadillac CT4 Owner's Manual, PDF page 244
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 · 2.7L L4 turbo engine (L3B) · PDF page 244
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 |
|---|---|---|---|
| 2.0L L4 turbo engine (LSY) | 0W-20 | “For the LSY 2.0L L4 turbo engine, use SAE 0W-20 viscosity grade engine oil.” | PDF page 244 ↗ |
| 2.7L L4 turbo engine (L3B) | 5W-30 | “For the L3B 2.7L L4 turbo engine, use SAE 5W-30 viscosity grade engine oil.” | PDF page 244 ↗ |
Scroll the table to see the quote and page →
For 2.0L L4 turbo engine (LSY)
For 2.7L L4 turbo engine (L3B)
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