- #219 of 311
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Re: Completely Mislead [rx400_owner]
by gunner
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Aug 26, 2005 (8:43 pm)
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Replying to: rx400_owner (Aug 04, 2005 1:39 pm)
Thanks, The reving up is an excelleration or RPM increasing. Excelerating at a moderate pace the engine RPM'S Increase too much and the forward speed does not increase enough. Then the engine hangs at the high rpm and stays there for a while before decelerating. Also My 1997 Corvette gets 18-22 MPG average city and highway. On the open road my vette gets 28-29 MPG.????? It cost me $20k less than my Lexus. 
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- #220 of 311
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Re: Completely Mislead [mirex]
by gunner
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Aug 26, 2005 (8:58 pm)
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Replying to: mirex (Jul 30, 2005 9:46 am)
mirex, Thanks. My trips usually are 20 -50 miles. When I was up at Lake Tahoe the instermentation registered 33-37 MPG. where small trips around the Lake. I did get 28.75 MPG coming home in very hot weather. Once again my 1997 Chev Corvette gets 17-20 MPG in City, and 28-29 MPG at high speed on the highway.?????? I would thing your weather is cooler and more humid. This was the way it was at Lake Tahoe... 
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- #221 of 311
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Re: Completely Mislead [timothyt]
by bainse
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Oct 19, 2005 (10:29 am)
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Replying to: timothyt (Jul 25, 2005 5:33 pm)
What the heck?? With all respect, this seems kind of unbelievable. And I don't know what BMW vehicle you're talking about having the "same gas mileage" and "faster acceleration" ... certainly not any of the BMW SUVs. While this forum (and Lexus) can benefit from healthy criticisms, I have to wonder whether you really are a 400h owner, or a competing dealer or something!
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- #222 of 311
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Re: Completely Mislead [timothyt]
by rmdnet
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May 25, 2006 (1:38 pm)
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Replying to: timothyt (Jul 25, 2005 5:33 pm)
Live in Jersey too. Have to drive 82 miles a day commuting (mostly on easton Ave then 287 up to Morristown). I'm getting between 25.4 and 26.2 mph according to the computer. The 26.2 came during a dreadful week of traffic when things were crawling. Not so bad for a heavy SUV. I'm more concerned about the whine on slow acceleration. Annoying in quiet neighborhoods. Do you have that? 
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- #223 of 311
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Lower gas milage
by nigh
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Jan 30, 2006 (8:14 pm)
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My 400h now has about 12000 miles on it. When we first got the car, we got about 26-27mpg and once I actually got 30-31mpg. NOW, we are getting 23-24mpg. What is going on here? We do not have a full carload of people and drive at a resonable speed.The dealer told us that they consider 17mpg "good". That sure is different from what they told us before the purchase of the car. We have bee using regular 87 gas. Any comments....Anne
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- #224 of 311
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Re: Lower gas milage [nigh]
by crawfish
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Feb 20, 2006 (10:14 am)
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Replying to: nigh (Jan 30, 2006 8:14 pm)
It's winter time....from all I read, gas engine works longer and harder under even 50F, which means battery doesn't help much --- lower mpg.
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- #225 of 311
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Re: Lower gas mileage [nigh]
by kjoeb
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Feb 25, 2006 (8:28 pm)
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Replying to: nigh (Jan 30, 2006 8:14 pm)
I just got mine and have been getting 21 to 23 MPG since day one. I did have high expectations, which justified the premium for the hybrid.
I called the Lexus hot-line to ask about it. They suggest I take it into the shop (appointment next Saturday). Lexus inferred this is not normal.
If there isn't anything wrong per the dealership, Lexus asked me to call them back. I hope they make it right.
To see your dealer saying to consider 17mpg "good," is disappointing to say the least. I'll post the dealers response too.
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- #226 of 311
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Re: Lower gas mileage [kjoeb]
by lexus400
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Mar 24, 2006 (10:03 am)
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Replying to: kjoeb (Feb 25, 2006 8:28 pm)
I had this issue too; however I am finding that 22 mph is disappointing. They say that they didn't do the testing that resulted in the MPG on the sticker-and that they aren't touting the mpg as the reason to buy this car-rather it is the performance and the green aspects of the car. That is not what the dealer told me as I was considering the car-I would gather that the 330 has similiar performance. Cars rarely get the MPG posted on the window, but I feel that this is a significant difference when they are touting this as one of the reasons to spend the extra $$$$. I love being green friendly, but thought that the gas mileage was an aspect of the car being green friendly beyond the use of silver inside the car and the black steering wheel instead of the use of wood. They also tell me that it is based on my style of driving. I was getting 25 in the beginning and it has now dropped to 22-same person-same style-maybe even trying harder to coast and get the mileage up than when it was new--all to no avail.
I just want the vibration/shaking taken care of so that my teeth aren't like a baby rattle at 37-44mph.
Good luck-keep us posted.
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- #227 of 311
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Re: Lower gas mileage [lexus400]
by sdk43
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Mar 24, 2006 (2:30 pm)
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Replying to: lexus400 (Mar 24, 2006 10:03 am)
After nearly eight months, I've found that mileage is significantly affected by speed. If I use the first half of a tank of 87 octane at 65 mph, I will see a mileage figure of about 23 mpg. If I start using the second half at 45-50 mph (returning to New York City from Connecticut, that's easy to do as traffic slows down in the Bronx), the cumulative mileage climbs pretty quickly to above 25 mpg. I've not used a full tank of 87 octane at 45-50 mph, but my feeling from watching the screen is that I'd probably be at 27 mpg or higher.
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- #228 of 311
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Re: Lower gas mileage [lexus400]
by kyxydj
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Nov 09, 2006 (6:46 pm)
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Replying to: lexus400 (Mar 24, 2006 10:03 am)
As for performance, the RX400h is way ahead of the 330 that I traded in. The RX400h really is more responsive, by quite a bit, than the 330. As for that rattling, I was getting it at 55-60 mph, and I think the Lexus people are onto it. After my 5000 mile check, it is gone. They probably had a software update or something like that. I am getting around 27mpg most of the time. If I really drive it gently, the RX400h will get me 28-29mpg. I live in the San Diego area, and I do have to go up and down a lot of hills, which will affect mpg. So will going over 65-70mph, once you get over 65, the fuel economy starts to taper off, just a little.
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