Sharr

Please keep in mind that if you inflate your tires past approx. 34 psi (cold), they will wear out in the center, rather quickly. I had my tires at 35 psi for a while until I noticed that they were wearing out in the center. Currently, I have them set to 32-33 psi and their wear has evened out.

Good to know. I will keep and eye on them for uneven wear. Thanks:)

Sharr,

IMO, the previous posters are right on the money.

I have an '08 400h AWD, live in southeastern PA, run regular gas (10% ethanol), don't do a lot of long trips, and average ~22 in winter and am lucky with judicious driving in summer to get close to 26. People are always (negatively) surprised when I give them these "low" gas mileage figures - I just reply that moving ANYTHING weighing close to 4,440 lbs. around is going to burn a lot of gas. And, if I had the regular version, I'd be lucky to get 18-19 under the same conditions.

I'm coming up on the end of my lease and enjoy the 400h so much I very well may purchase it...the first time I've ever done that with a lease. The 2010 re-design does nothing for me and does not ride as well.

One last thing - you may want to check the tire pressure. You can inflate them to 38 with no problems and improve the mpg.

I may try to increase my tire pressure and see if it makes a difference. I think I can try it for a couple of weeks before doing any damage to the tires. Thanks for the suggestion.

You have an amazing car that will last a long, long time and will feel new as well...I get about 24 and a half but I do better the times in the year that I drive farther, about 26. I hope that you will be happy with your purchase. When I got mine in January of 2006,first year for the 400h, the numbers were totally inflated to 31! I got used to the lie and I have been impressed by so much about this car. The mileage is OK but the transmission and everything else is amazing. I think that the transmission is something that I appreciate more now than when I first got this great car. Good luck and if anything maybe you can get something else. It shouldn't be too hard to sell your car and get what you paid for it. Rey in sunny LA

I have noticed the further I travel the better my mileage. It really makes perfect sense. It is truly an amazing vehicle and I wouldn't trade it for anything. Just a little disappointing at first. Thanks for the encouragement:)

I think I wouldn't be impressed, either if I drove only 7 miles to work. To get the oil hot enough, most vehicles need to be driven at least 10 miles, but as much as 20 miles on cooler days. As the oil gets hotter its viscosity decreases and fuel mileage increases.

We average 24-26 MPG with more highway than city driving. I'm certain that if we spent more time in the city or during high traffic times, our fuel mileage would go up. We do not drive super conservatively and I've been known to blast by X5s every now and then.

By the way, here's a post that includes a graph of RX400h owners' average fuel mileage.

http://us.lexusownersclub.com/forums/index.php?showtopic=21500

Thanks for the information. Average fuel mileage was very interesting! Hope I can get there.

I just purchased a CPO 2008 400h and I'm not impressed with the gas mileage. I'm averaging just under 23mpg. My take offs are very slow and I coast as often as I can. I am not a fast driver in fact people in the car with me have said they can see a nickle on the side of the road. I travel around 7 miles to work and 3 of those miles and on the interstate traveling less than 60mph. I run the AC only on the trip home. I am still on my first tank of gas and have put 230 miles on the vehicle and average mpg says 22.8. Any suggestions you all might have would be greatly appreciated. Thanks for your time.

Thanks for the info. I will give them a try and let you know.

Sharr

Hello, I'm considering purchasing an 06 or 07 RX 400h. I was wondering if anyone knows if satellite radio could be integrated into the existing navigation/radio display for either one of the above mentioned models. I don't want an after market separate unit mounted somewhere. I would like to be able to see satellite radio stations displayed on the factory radio/navigation screen.

Thanks for your time and I would appreciate any information you could give me. I have found your forum extremely helpful and everyone seems very knowledgeable.

Sharr

Try an aftermarket kit from VAISTECH dotcom ... I have one in my Toyota Avalon and it works well. I know my kit will work in a GX and the 01-06 Toyota/Lexus Models.

Hello, I'm considering purchasing an 06 or 07 RX 400h. I was wondering if anyone knows if satellite radio could be integrated into the existing navigation/radio display for either one of the above mentioned models. I don't want an after market separate unit mounted somewhere. I would like to be able to see satellite radio stations displayed on the factory radio/navigation screen.

Thanks for your time and I would appreciate any information you could give me. I have found your forum extremely helpful and everyone seems very knowledgeable.

Sharr