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Lexus RX 400h - MPG-Real World Numbers

311 messages,  Last post on Jul 08, 2009 at 3:52 PM

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What is this discussion about? Lexus RX 400h, Fuel Efficiency (MPG), SUV

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#239 of 311 Re: MPG/Winter/Bluetooth [samiam_68] by kaperino Jan 29, 2007 (10:08 am)
Replying to: samiam_68 (Jan 28, 2007 1:15 pm) Most of teh information on Bluetooth phones for the 400h indicate that all the numbers in your contact list will have to be entered one by one. Of course, I am swithcing carriers from Nextel to Cingular, so I have to enter all my contacts one by one into the phone, so the Samsung T-809 looks good. I will look into the Cingular?Att offering that phone. If anyone out there knows of a great PDA or phone by Cingular that is compatable, let me know........
#240 of 311 Real mileage with over 16K miles by hilandr05 Mar 04, 2007 (5:42 am)
Yesterday was the first anniversary of owning an RX400h and I took it in for an oil change with over 16,000 miles. I have been tracking mileage carefully and have an Excel spreadsheet to show both total and by tank mileage. My total mileage is 27.65 MPG. The by tank mileage varies from a low of 22 to a high of 30. The mileage readout in the car is almost always overly optimistic, by as much as 2 MPG. Of course all this data is not statistically significant without a few facts on conditions. - Primary location is South Florida, so a lot of flat ground - Air conditioner running almost all the time - 2 wheel drive - Regular gas only - Combination of stop-and-go, regular street, and highway driving - A lot of driving too fast, 80+ MPH - Driving conditions around Miami do not encourage slow starts and moderate speeds.   Bottom line is that I know I could do better if I drove slower, started slower, and did not run the A/C ALL the time. But if I just wanted to save gas I would have bought a Prius. I enjoy the comfort, luxury features, and power too much. And I really like driving in the HOV lane!   My biggest concern is future maintenance support and trade-in value. I don't see any advertising by Lexus about the 400h but a deluge of advertising for the other cars. I think that is a very bad sign for us owners. Replies to this message: kyxydj (Mar 04, 2007 10:19 am)
#241 of 311 Re: Real mileage with over 16K miles [hilandr05] by kyxydj Mar 04, 2007 (10:19 am)
Replying to: hilandr05 (Mar 04, 2007 5:42 am) I actually feel like Lexus doesn't have to advertise the hybrids. They don't need the extra promotion. They are popular enough already. That's probably why you are not seeing a lot of hype on them.
#242 of 311 More Mileage Info by rockville1 Mar 14, 2007 (9:26 am)
For my '07 400h that was purchased in early January, I now have 1,700 miles and mileage is as follows:   1. During the cold month of February, I was averaging about 24 with regular gas. With premium or midgrade I was getting 26.4.   2. Since temps have risen above 60 F, I am now averaging 29.5 with midgrade gas.   I'm very happy with the MPG. Replies to this message: myhybrid (Mar 25, 2007 7:34 pm) holew (May 19, 2007 7:27 pm) apg97ss (May 20, 2007 5:23 pm) kaperino (May 21, 2007 3:10 am) 150mphclub (Jun 05, 2007 4:43 pm)
#243 of 311 Re: More Mileage Info [rockville1] by myhybrid Mar 25, 2007 (7:34 pm)
Replying to: rockville1 (Mar 14, 2007 9:26 am) Quick question - do you do most of your driving using the cruise control feature? I had around 22 (at the most) during the colder months, and now that the temp is around 50 I am back up to 25. One thing I have noticed is that the cruise control really makes the difference (aside from the temperature).
#244 of 311 Cruise control by kaperino Mar 26, 2007 (3:08 am)
My 2006 400 h has over 35,000 miles, averages 28 MPG over all with little cruise control. Most driving is around the city, with frequent stops and that decreases the MPG. Replies to this message: avery1 (Mar 26, 2007 9:37 am)
#245 of 311 Re: Cruise control [kaperino] by avery1 Mar 26, 2007 (9:37 am)
Replying to: kaperino (Mar 26, 2007 3:08 am) I thought that with a hybrid city mpg is higher because the batteries get charged more.
#246 of 311 MPG? by ravlegend Apr 10, 2007 (12:32 pm)
2 questions related to MPG:   -Mine 2007 manual is recommending premium gasoline (91 octane or above). I've been reading the 2006 suggested regular gas. Since I assumed they are the same engine - does it matter?   -is there a "master" button to show the overall MPG since new?   Thanks in advance.
#247 of 311 Premium by kaperino Apr 10, 2007 (12:59 pm)
Bought my 2006 in 2005. Have 35,000 miles. Specs recommended 91 or higher. I used the higher grade ( premium) for a year and switched to middle grade. Just a mile or so difference per gallon. Master button? Not sure of the question. I know of no other display of MPG other than on the trip information screen
#248 of 311 Re: More Mileage Info [rockville1] by holew May 19, 2007 (7:27 pm)
Replying to: rockville1 (Mar 14, 2007 9:26 am) By Mid-Range gas I am thinking that you mean 89 octane. If this is correct you would be better off mixing 1/3 87 octane with 2/3 93 octane which results in a 91 octane mix. You will find that this is cheaper then buying 89 octane gas.   I have a 2002 LS430. The owners manual indicates that 91 octane is appropriate. Of course 91 Octane fuel in not available at the pump, at least where I buy fuel here in the Mid-Atlantic. So at every fillup I merely compute the number of gallons needed, divide this by 3 and pump the 87 first and then top it off with 93. While this might sound strange for the owner of a $60k car to do this to save a dollar or two at a fillup, I ask you this. If you saw a dollar one the street would you pick it up? If so this is how I find a dollar in the street at least once or more a week. There is usually a 20 cent difference in 87 and 93 gas. So pumping 5 to 7 gallons of 87 at 20 cent less per gallon equals $1 to $1.40 per tank full.   I think if you read the owners manual for you Lexus RX400h you will find out that 91 octane fuel is recommended.

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