Safety Warning
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.
2004 Lexus ISOil Type & Capacity
OEM spec from the factory service manual for the Base, Automatic variant.
Quick Answer
Oil Type
API - SAE 5W-30
Capacity (w/ Filter)
5.70 QTS.
5.39 L
Variant
Base, Automatic
Note: API - SL "Energy-Conserving" or ILSAC multigrade engine oil.
Source: Factory service manual — 2004 Lexus IS Base, Automatic. View full manual section →
What You'll Need
Frequently Asked Questions
- What type of oil does a 2004 Lexus IS take?
- The 2004 Lexus IS requires API - SAE 5W-30. The exact spec may vary slightly by engine variant — this page shows the OEM recommendation for the Base, Automatic configuration.
- How much oil does a 2004 Lexus IS need?
- The 2004 Lexus IS takes 5.70 QTS. (5.39 L) of engine oil with the filter replaced.
- Can I use synthetic oil in my 2004 Lexus IS?
- 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 2004 Lexus IS?
- 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.