Does 2024 Lexus Rx 350 Require Premium Gas Mileage. Fuel economy of the 2024 lexus rx 350. Most 2024 and 2023 models require premium unleaded gas with an octane rating of 91 or higher.
Research the 2024 lexus rx 350h at cars.com and find specs, pricing, mpg, safety data, photos, videos, reviews and local inventory. The manual says that 350h can run on standard but premium recommended.