2010 Lexus RX 450h User Guide - Page 41

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1-1. Hybrid system

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Checking tire inflation pressure

Make sure to check the tire inflation pressure frequently. Improper tire

inflation pressure can cause poor fuel consumption.

Also, as snow tires can cause large amounts of friction, their use on dry

roads can lead to poor fuel consumption. Use a tire that is appropriate for

the season.

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Luggage

Carrying heavy luggage can lead to poor fuel consumption. Avoid carry-

ing unnecessary luggage. Installing a large roof rack can also cause poor

fuel consumption.

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Warming up before driving

Since the gasoline engine starts up and cuts out automatically when cold,

warming up the engine is unnecessary. Moreover, frequently driving short

distances will cause the engine to repeatedly warm up, which can lead to

poor fuel consumption.