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2015 Lexus RX 450h really needs premium gas?

Does a Lexus Rx 450h 2015 really need premium gas as recommended by Lexus

Yes, per your owners manual page 810: “Premium unleaded gasoline with an octane rating of 91 (Research Octane Number 96) or higher required for optimum engine performance.” Required not recommended

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If the manufacturer SAYS it requires premium, than you should. If it says premium is recommended, its your choice. But as @pyrolord314 says, your car requires premium.

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