Whats the best oil for Lexus IS350?
For most Lexus IS350 models, the best oil is a high-quality full-synthetic 0W-20 that meets Lexus/Toyota specifications. This viscosity is the default recommendation, with 5W-30 as a potential alternative only in certain climates or if your manual allows it. Always verify in your vehicle’s owner’s manual or with a Lexus dealer.
The Lexus IS350 uses a 3.5-liter V6 (the 2GR-FSE family) and is designed to run on modern synthetic oils that provide strong protections at both cold starts and hot operating temperatures. While 0W-20 is the standard for many model years, some markets and conditions may permit slightly thicker grades. This article outlines the current best practices, common oil choices, and practical guidance for maintaining the IS350’s engine health.
Manufacturer recommendations for the IS350
Understanding the official guidance helps buyers and owners choose oils that won’t void warranties or compromise protection. Lexus typically lists a synthetic oil with a viscosity around 0W-20 for the IS350’s 2GR-FSE engine. Exact specifications and approved brands can vary by model year and market, so it’s essential to reference the owner’s manual or a dealership bulletin for your specific car.
Here are the most common oil viscosity and formulation options you’ll encounter for the IS350.
- 0W-20 full synthetic oil (Lexus/Toyota-approved). This is the default recommendation for normal everyday driving in temperate climates.
- 5W-30 full synthetic oil. Acceptable in some markets or under particular driving conditions where a slightly thicker oil is advised by the manual or a dealer.
- 0W-20 or 0W-30 variants may be permitted in certain climates or regions if explicitly approved by Lexus documentation. Always confirm through your manual or dealership.
Regardless of the choice, use a high-quality full-synthetic oil that meets or exceeds your manual’s specification and keep to the recommended service intervals.
Oil brands and where to buy
Brand compatibility matters, but the core requirement is that the oil meets the correct viscosity and approvals for the IS350’s engine. OEM-brand oils are often the simplest path, but many reputable third-party synthetics also meet Lexus specifications.
- Toyota Genuine Motor Oil (0W-20) or Lexus-branded synthetic oils that meet the same specification.
- Reputable aftermarket 0W-20 full synthetics that meet API SN (or newer) and ILSAC GF-6, and are approved for use in Toyota/Lexus engines.
- Brands commonly stocked at automotive retailers and service centers, with labeling indicating 0W-20 and the required approvals (GF-6, SN, etc.).
When selecting a brand, prioritize oils that explicitly state compatibility with Toyota/Lexus engines and the 0W-20 viscosity range. If in doubt, ask your local dealer or service advisor to confirm a specific oil’s approval for the IS350.
Oil capacity and maintenance intervals
Oil capacity for the IS350’s 3.5-liter V6 is typically in the neighborhood of about 6.5 quarts (roughly 6.2 liters) with a filter. Always verify the exact figure in your owner’s manual for your model year and engine variant.
Maintenance intervals vary by oil type and your driving conditions. For modern Lexus engines using full synthetic oil, a typical interval under normal driving is around 10,000 miles (approximately 16,000 kilometers) or 12 months, whichever comes first. If you regularly drive in severe conditions (extreme heat or cold, short trips, heavy stop-and-go, or towing), shorter intervals—around 5,000–7,500 miles (8,000–12,000 km)—are often recommended. Always follow the manual and practitioner guidance based on your actual driving environment.
Practical tips for choosing and maintaining oil
- Always confirm the exact viscosity and approvals in your IS350’s owner’s manual, as requirements can vary by year and market.
- Use a reputable full-synthetic oil in the recommended 0W-20 range unless the manual explicitly allows another grade.
- Replace the oil filter with every oil change and use the recommended OEM or OEM-approved filter.
In short, for most Lexus IS350 owners, sticking with a 0W-20 full synthetic oil that carries Lexus/Toyota approvals offers the best balance of protection, fuel efficiency, and ease of maintenance. If you live in an area with extreme temperatures or have an unusually aggressive driving style, consult your dealer about whether a different viscosity is appropriate and supported by the official documentation.
Summary
Bottom line: Use a high-quality 0W-20 full synthetic oil that meets Lexus/Toyota specifications for the IS350. Consider 5W-30 only if your manual allows it or your climate and driving style demand it, and always verify exact approvals for your model year. Plan oil changes at the intervals recommended in your manual, and use a compatible OEM or OEM-approved oil filter to maintain engine health.
What kind of oil does a 2014 Lexus IS350 take?
The recommended oil for a 2014 Lexus IS350 is 0W-20 full synthetic oil. If 0W-20 is unavailable, 5W-20 can be used as a temporary substitute, but the oil should be replaced with 0W-20 at the next oil change. The engine requires approximately 6.6 quarts for RWD models and 6.8 quarts for AWD models, and it is important to use a full synthetic oil for optimal performance.
Oil type and viscosity
- Viscosity: 0W-20 is the recommended viscosity for optimal fuel economy and cold-weather performance.
- Type: 0W-20 full synthetic oil is the preferred choice.
Oil capacity
- RWD models: 6.6 quarts with a filter.
- AWD models: 6.8 quarts with a filter.
Important considerations
- Temporary substitute: If 0W-20 is not available, you can use 5W-20, but you must switch back to 0W-20 at the next oil change.
- Oil change intervals: Vehicles using 0W-20 synthetic oil may be approved for longer oil change intervals, but you should still check the oil level regularly and top it off as needed.
- Consult your owner's manual: Always refer to your specific vehicle's owner's manual for the most accurate and detailed information on oil type and maintenance requirements.
What is the best oil for a Lexus 350?
Most new Lexus models require Toyota Genuine Motor Oil SAE 0W-20, which is a full synthetic motor oil. This is the one for the Lexus RX 350 oil type and the Lexus ES 350 oil type. Older models may require the conventional Toyota Genuine Motor Oil 5W-30.
What oil does a 2015 Lexus IS350 take?
STP Full Synthetic Engine Oil 0W-20 5 Quart.
What oil does the Lexus IS350 take?
The Lexus IS350 requires 0W-20 full synthetic oil for most recent model years. For some older models (e.g., 2006-2013), the recommended oil is 5W-30. Always check your owner's manual to confirm the specific oil grade and capacity for your IS350's model year and whether it's RWD or AWD, as capacity can vary.
Recommended oil type by model year
- Most recent models (e.g., 2015 and newer): Use 0W-20 full synthetic oil.
- Older models (e.g., 2006-2013): Use 5W-30 oil, which may be conventional or synthetic depending on the vehicle and owner preference.
Key takeaways
- Always check your owner's manual: to confirm the correct oil grade and capacity for your specific vehicle model year.
- RWD models: typically require about 6 quarts of oil.
- AWD models: typically require about 6.8 quarts of oil.
- Use synthetic oil: for better performance and protection, especially if your vehicle is a newer model.
- Consider brands: that are known for high performance and reliability and meet or exceed the manufacturer's specifications.
