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wankel7

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  • Lexus Model
    2004 RX330

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  1. Indeed she is over 40:) She never will floor it. Maybe once a month. I told her to do that at least once a month so it does not build up carbon. Not even sure if that would happen with the lexus. She had a 92 Saab 9000 Turbo before. And she put 87 in it just to see what happened. It detanated baddly. So she didn't do that again:) However, with the Lexus it would prob do fine on 87. I have a 91 Turbo RX-7 and I only give it 93 octane.
  2. Thank you for the response! I guess that does make sense. I did not know about the different ways of rating the octane. Maybe a good time for higher octane fuel would be if you are towing a trailer and the car is at GVW? I guess the real test would be if somebody would strap their RX330/300 to a dyno:) James
  3. My mom just got a 04 RX330 and she was asking what type of fuel to put in. The book says 87 octane is fine. However, there is a little sentence afterwards that says higher octane yields more performance. Ok, that doesn't make any sense. Since putting a higher octane in a car doesn't give you more power. It could even hurt power and fuel mileage. So, the only thing I can think of is the EMS senses what octane it is buring and if it senses higher octane it changes timing to allow for more power. So, am I barking up the wrong tree? Or is Lexus trying to support the oil industry? Thanks ! James
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