Does 2022 Lexus NX require premium gas?
The answer depends on the engine: the turbocharged NX 350 needs premium fuel, while the NX 250 and NX 350h can run on regular unleaded (87 octane).
In 2022, Lexus offered three primary NX configurations in the United States: a 2.5-liter naturally aspirated NX 250, a 2.4-liter turbo NX 350, and a hybrid NX 350h. Octane requirements are determined by engine design and are specified in the owner’s manual and the fuel-filler label on the vehicle. This article breaks down the octane expectations by trim and provides practical guidance for fueling, warranties, and performance.
Fuel requirements by NX trim
Here's how octane needs vary by engine option in the 2022 NX lineup.
- NX 350 — 2.4-liter turbo: Premium unleaded gasoline with an octane rating of 91 or higher is recommended to maintain peak performance and torque. If only 87-octane fuel is available, you may still operate the vehicle, but you should expect reduced power and the engine’s knock-sensing system to intervene to protect the engine, which can affect acceleration.
- NX 250 — 2.5-liter naturally aspirated: Regular unleaded fuel (87 octane) is acceptable, and premium fuel is not required for normal operation.
- NX 350h — Hybrid: Regular unleaded fuel (87 octane) is also suitable for this variant; premium is not required, though some drivers may notice marginal gains in efficiency with higher-octane fuel under certain conditions.
Note: Always consult the owner’s manual or the fuel-door label for the exact octane specifications for your trim and market, as there can be regional differences in labeling and recommended fuel.
Practical considerations
For everyday driving, regular 87 octane covers the NX 250 and NX 350h. If you regularly engage in spirited driving, towing, or drive a lot in hot conditions or mountains, you might benefit from premium fuel in the NX 350 to sustain optimal performance and engine longevity.
What the owner’s manual says
The owner’s manual for the 2022 Lexus NX specifies premium unleaded gasoline with an octane rating of at least 91 for the NX 350 turbo, to achieve the best possible performance. The NX 250 and NX 350h are compatible with regular 87 octane fuel. Always verify the fuel requirements for your exact VIN and market in the manual and on the fuel-filler door label.
Summary
Bottom line: If you own or lease a 2022 NX 350 turbo, plan to use premium gas (91 octane or higher). If you drive the NX 250 or NX 350h, regular 87 octane is typically sufficient. Always follow the octane recommendations in your owner’s manual and the label on your fuel door to protect performance, efficiency, and warranty coverage.
