snowboundrx350
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I am thinking of buying an 07 RX350 with 76000 miles. Anything to watch out for?
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Do I Really Need To Put Premium Gas ?
snowboundrx350 replied to RX350MTL's topic in 04 - 09 Lexus RX330 / RX350 / RX400h
The higher the octane reading of gasoline the higher the resistance to pre-ignition knock. If the engine senses knock it will !Removed! the ignition timing which will cause slightly decreased efficiency of combustion. This leads to lower performance and lower mpg. Because of the computer, no damage to your engine will occur. If your performance or mpg decreases to a point that it is a concern simply go back to mid grade or premium fuel.
