For a 2015 Acura TLX, the recommended oil is synthetic 0W-20 that meets ILSAC GF-5 and API SN or newer, applicable to both the 2.4L four-cylinder and the 3.5L V6 engines.
Oil specification for the TLX engines
Two engines, one standard grade
The 2015 TLX offered a 2.4-liter four-cylinder and a 3.5-liter V6. Acura specifies the same oil grade for both: synthetic 0W-20 that meets ILSAC GF-5 or newer and API SN or newer. Using this grade supports easy cold starts, fuel efficiency, and proper lubrication across driving conditions. Always verify the exact specification in your owner’s manual or on the oil-fill cap, as market-specific variations can occur.
When shopping for oil, prioritize products labeled as 0W-20 synthetic and certified to meet GF-5/API SN or newer, ideally with Honda/Acura approval.
Key attributes to verify before you buy the oil
- Viscosity: 0W-20
- Oil type: synthetic
- Certifications: ILSAC GF-5 or newer; API SN or newer
- Branding: Honda/Acura-approved or equivalent meeting the spec
In short, use a high-quality 0W-20 synthetic oil that complies with GF-5 and API SN or newer, and choose a product approved for Honda/Acura vehicles to ensure optimal performance and protection.
Where to source and how to check the label
Label details to look for
When shopping, look for 0W-20 synthetic oil specifically labeled with ILSAC GF-5 (or newer) and API SN (or newer). An oil bearing Honda/Acura certification or recommendation is a strong indicator that it’s suitable for the TLX.
If you’re unsure, consult your local Honda/Acura dealer or reference the owner’s manual for the exact specification and any region-specific notes.
Summary
The 2015 Acura TLX requires synthetic 0W-20 oil that meets ILSAC GF-5 or newer and API SN or newer, for both engine options. Choose high-quality, Honda/Acura-approved oil and verify the specification on the container to ensure proper lubrication and engine protection over time.


