2019 Lexus GSOil Type & Capacity

OEM spec from the factory service manual for the Base variant.

Quick Answer

Oil Type

TOYOTA Genuine Motor Oil. ILSAC GF-5 Multigrade Engine Oil, SAE 0W-20

Capacity (w/ Filter)

4.90 QTS.

4.63 L

Variant

Base

Note: SAE 0W-20 is the best choice for good fuel economy and good starting in cold weather. If SAE 0W-20 is not available, SAE 5W-20 oil may be used. However, it must be replaced with SAE 0W-20 at the next oil change. The engine oil capacity is a reference quantity to be used when changing the engine oil. Warm up and turn off the engine, wait more than 5 minutes, and check the oil level on the dipstick.
Source: Factory service manual β€” 2019 Lexus GS Base. View full manual section β†’

Frequently Asked Questions

What type of oil does a 2019 Lexus GS take?
The 2019 Lexus GS requires TOYOTA Genuine Motor Oil. ILSAC GF-5 Multigrade Engine Oil, SAE 0W-20. The exact spec may vary slightly by engine variant β€” this page shows the OEM recommendation for the Base configuration.
How much oil does a 2019 Lexus GS need?
The 2019 Lexus GS takes 4.90 QTS. (4.63 L) of engine oil with the filter replaced.
Can I use synthetic oil in my 2019 Lexus GS?
Yes β€” synthetic oil that meets the TOYOTA Genuine Motor Oil. ILSAC GF-5 Multigrade Engine Oil, SAE 0W-20 specification is acceptable and often preferred for better protection and longer change intervals.
What happens if I use the wrong oil in my 2019 Lexus GS?
Using oil that does not meet the TOYOTA Genuine Motor Oil. ILSAC GF-5 Multigrade Engine Oil, SAE 0W-20 specification can reduce engine protection, increase wear, and potentially void warranty coverage. Always use oil that meets the OEM spec.