- #13 of 28
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Re: 2005 LS mpg [rcf8000]
by rcf8000
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Sep 10, 2005 (6:09 am)
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Replying to: rcf8000 (Sep 07, 2005 7:20 am)
On our first tank of gas in California we are getting only 24.5mpg. I assume that this is due to the formulation of the gasoline for California.
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- #14 of 28
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Re: LS 430 - Gas Octane [flatlander]
by rpbassman
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Oct 09, 2005 (12:00 pm)
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Replying to: flatlander (Sep 04, 2005 6:41 pm)
I asked my service manager this question - he returned a question to me: How long do you expect to drive the car? His feeling is if you are only going to drive the car for 100,000 miles or so, then use regular - if you intend to keep it longer, use premium. He said he's seen LS models with very high mileage (300k +) that have not yet had major engine work, excepting engine accessory replacements, and he attributes it in part to use of premium fuel. So if this is in fact the case, wouldn't it be nice to know, if buying a used vehicle, what fuel has been used in it? Another good reason for not buying an LS from a rental fleet. You can be certain they live on a regular-grade diet. So I tend to buy the more expensive stuff, always wondering if I'm throwing money away in so doing.
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- #15 of 28
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Re: LS 430 - Gas Octane [rpbassman]
by sbadeaux
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Jan 09, 2006 (4:29 pm)
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Replying to: rpbassman (Oct 09, 2005 12:00 pm)
Lexus does not sell to Fleets. You cannot buy a lexus from and fleet, rental or otherwise.
Scott
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- #16 of 28
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Re: LS 430 - Gas Octane [sbadeaux]
by nvbanker
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Jan 09, 2006 (7:16 pm)
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Replying to: sbadeaux (Jan 09, 2006 4:29 pm)
That's what I thought....
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- #17 of 28
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Re: 2005 LS mpg [rcf8000]
by pearl
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Jan 16, 2006 (7:14 pm)
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Replying to: rcf8000 (Sep 10, 2005 6:09 am)
You are getting "only" 24.5 mpg on your FIRST tank? In my humble opinion, you are doing pretty well. Remember you are driving a luxury V8, not some econo-box four cylinder. Read the Infiniti M boards. Most of them are getting 16-19 mpg on a V6. Don't blame the California gasoline. Be thankful that in addition to getting great gas mileage vs. almost any other peer automobile, you are also helping the environment.
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- #18 of 28
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Re: 2005 LS mpg [rcf8000]
by i5cpa
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Apr 13, 2006 (3:10 pm)
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Replying to: rcf8000 (Sep 10, 2005 6:09 am)
I have taken a number of trips between Oregon and Washington along the interstate. Quite consistently, like you, I am averaging about 24.5 MPG with a 1990 LS burning premium gas at 70-75 MPH (When not stuck in traffic.)
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- #19 of 28
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type of gas
by blk99ls
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Jul 05, 2006 (6:30 pm)
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Is it true that you can only use 93 octane in the 99 LS?
How about 91?
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- #20 of 28
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Re: type of gas [blk99ls]
by nvbanker
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Jul 09, 2006 (11:08 am)
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Replying to: blk99ls (Jul 05, 2006 6:30 pm)
Can't be. Most places you can't get 93.....
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- #21 of 28
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Re: type of gas [nvbanker]
by pat HOST
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Jul 09, 2006 (12:16 pm)
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Replying to: nvbanker (Jul 09, 2006 11:08 am)
Hmm ... here in SE Va you can't get 91, you can only get 93 if you want something higher than regular octane. I was under the impression that was true in most parts of the country. 
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- #22 of 28
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Re: type of gas [nvbanker]
by pearl
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Jul 10, 2006 (3:22 pm)
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Replying to: nvbanker (Jul 09, 2006 11:08 am)
where do you live? I think octane is also frequently a factor in the altitude of the location. When I lived near Denver, 91 was all you could get. Now I live in Maryland and here, as well as most of the (low altitude) east coast, the octane is 93 at pretty much all stations/brands. I also used to note 91 octane in WY and UT - again mostly high altitude locations.
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