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DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2008 Cadillac DTSOil Type & Capacity
OEM spec from the factory service manual for the 4.6 9 variant.
Quick Answer
Oil Type
API - SAE 5W-30
Capacity (w/ Filter)
7.50 QTS.
7.09 L
Variant
4.6 9
Note: Use synthetic oil that meets GM Standard GM4718M.
DO NOT use other viscosity oils such as SAE 20W-50.
Source: Factory service manual — 2008 Cadillac DTS 4.6 9. View full manual section →
What You'll Need
Frequently Asked Questions
- What type of oil does a 2008 Cadillac DTS take?
- The 2008 Cadillac DTS requires API - SAE 5W-30. The exact spec may vary slightly by engine variant — this page shows the OEM recommendation for the 4.6 9 configuration.
- How much oil does a 2008 Cadillac DTS need?
- The 2008 Cadillac DTS takes 7.50 QTS. (7.09 L) of engine oil with the filter replaced.
- Can I use synthetic oil in my 2008 Cadillac DTS?
- Yes — synthetic oil that meets the API - SAE 5W-30 specification is acceptable and often preferred for better protection and longer change intervals.
- What happens if I use the wrong oil in my 2008 Cadillac DTS?
- Using oil that does not meet the API - SAE 5W-30 specification can reduce engine protection, increase wear, and potentially void warranty coverage. Always use oil that meets the OEM spec.