The recommended engine oil for a 2007 Lexus IS 250 is SAE 5W-30 that meets ILSAC GF-4/GF-5 and API certification. Synthetic or synthetic-blend oils are acceptable and commonly preferred for longevity and protection. Always verify the exact specification in your owner’s manual or with a Lexus dealer for your specific engine and market.
Recommended oil specifications
Key oil specs to match when selecting oil for a 2007 IS 250:
- Viscosity: 5W-30 (suitable for a wide temperature range).
- Oil type: Conventional, synthetic-blend, or full synthetic are acceptable options.
- Certifications: API service category should be at least SM or SL (older models) or newer, and ILSAC GF-4 or GF-5 (or newer).
Bottom line: Use 5W-30 with appropriate API/ILSAC certification; synthetic blends or full synthetic are commonly recommended for longer drain intervals and better protection in demanding conditions.
Oil capacity and service intervals
Here are the typical figures for the IS 250’s engine oil capacity and change intervals:
- Oil capacity with filter: approximately 5.5–6.0 quarts (about 5.2–5.7 liters).
- Conventional/mineral oil change interval: about every 5,000 miles (8,000 kilometers) or 6 months, whichever comes first.
- Synthetic or full-synthetic oil change interval: up to about 10,000 miles (16,000 kilometers) or 12 months, depending on driving conditions and the owner's manual.
In practice, many owners opt for synthetic oils with longer intervals, but always follow the service schedule in your manual and the maintenance minder reminders for your region and climate.
Choosing between conventional and synthetic
Synthetic oils provide better high-temperature stability, faster lubrication at cold starts, and longer drain intervals. If you regularly drive in hot weather, tow loads, or take many short trips that don’t fully warm the engine, synthetic is a sensible choice. If budget is a concern and you drive normally, a high-quality conventional 5W-30 or a synthetic-blend offers solid protection.
Summary
For a 2007 Lexus IS 250, the standard recommendation is SAE 5W-30 oil that meets API and ILSAC specifications. You may use conventional, synthetic-blend, or full synthetic oil. The engine capacity is roughly 5.5–6.0 quarts with a filter, and typical replacement intervals range from about 5,000 miles for conventional oil to about 10,000 miles for synthetic oil, depending on driving conditions. Always consult your owner’s manual or a Lexus dealer for your exact configuration and climate considerations.