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Lexus GS 450h MPG-Real World Numbers

86 messages,  Last post on Sep 17, 2009 at 4:23 PM

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What is this discussion about? Lexus GS 450h, Fuel Efficiency (MPG), Sedan

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#77 of 86 Re: lifetime mpg update [idele] by tricky73 Sep 23, 2007 (2:17 pm)
Replying to: idele (Sep 23, 2007 9:36 am) I have difficulty finding ANY meaningful data on runflats...mine has Bridgestone Z rated which are not listed on their website last time I checked. Just what do these things cost...when I ask, dealers look at me with a blank stare; they can't find data either...Thanks Replies to this message: idele (Sep 23, 2007 2:48 pm) tricky73 (Sep 24, 2007 8:39 am)
#78 of 86 Re: lifetime mpg update [tricky73] by idele Sep 23, 2007 (2:48 pm)
Replying to: tricky73 (Sep 23, 2007 2:17 pm) Check the websites of major online retailers like Tire Rack. Inputing the vehicle, tire size and including runflats will give you information on prices and the retailer's ratings. Based on my experience. I would choose five full tires over four runflats. However, I would choose four runflats over four full tires and one of those temporary spares. Replies to this message: tricky73 (Sep 24, 2007 8:39 am)
#79 of 86 Re: lifetime mpg update [idele] by tricky73 Sep 24, 2007 (8:39 am)
Replying to: idele (Sep 23, 2007 2:48 pm) Thanks. You just saved me $100/tire (mentally); I was budgeting $400 based on what somebody had told me. I do not have the choice of going backwards; mine has active suspension which means the cubby for the donut is occupied by a second 12v battery.
#80 of 86 Re: lifetime mpg update [idele] by tricky73 Sep 25, 2007 (3:51 am)
Replying to: idele (Sep 23, 2007 9:36 am) Rereading my warranty booklet, it implies there is a road hazard guarantee for tire replacement within a specified time or tread wear condition. Does this suggest yours were wearing too fast to fall within this category for a free replacement because it was not repairable? Certainly the time specification could not govern...you haven't had the car that long. Replies to this message: idele (Sep 25, 2007 3:04 pm)
#81 of 86 Re: lifetime mpg update [tricky73] by idele Sep 25, 2007 (3:04 pm)
Replying to: tricky73 (Sep 25, 2007 3:51 am) It was a puncture so not covered. The Lexus dealer checks tire wear and brake wear each 5000 mile maintenance period. My last one was a little earlier than 10000 miles but it was over eight months since the previous one, Since oil deteriorates with time I took that into consideration. Brake wear was excellent, above expectations, and tire wear was a bit below excellent but impressive to my service representative. I follow the Lexus recommendation for motor oil. The dealer offers Mobil 1, too.
#83 of 86 Consumers Report Article by tricky73 Oct 05, 2007 (9:16 pm)
The November issue really did a number on the 450h. Note the one they tested did not have active stabilization, radar cruise, and was fitted with Dunlop Sport tires which have been maligned by others on this thread. Regardless of what they have reported I still am very high on mine!   Note in spite of their criticism it is still recommend!! Replies to this message: idele (Oct 06, 2007 11:44 am)
#84 of 86 Re: Consumers Report Article [tricky73] by idele Oct 06, 2007 (11:44 am)
Replying to: tricky73 (Oct 05, 2007 9:16 pm) Reporters love to malign Toyota/Lexus. Here's an article from 2006 but still valid: http://money.cnn.com/2006/05/01/news/companies/pluggedin_fortune/index.htm
#85 of 86 Re: lifetime mpg [tricky73] by tricky73 Oct 21, 2007 (4:57 am)
Replying to: tricky73 (Sep 21, 2007 11:59 am) I have tried several tankfulls of premium and cannot see any change in mpg compared to regular.   Two factors are important, perhaps; 90% of my driving is stop-and-go, and I do not hotdog the car...i.e. braking is more important than acceleration. Intend going back to regular and continue monitoring mpg to hopefully add more data to an interesting attribute of the 450h.   To date the machine is flawless and much better suited to my needs than the 460L it replaced. I note my local volume dealer has ~ 40 460s' in inventory and only 1 450h. Does anybody have data on current buyers' model preferences?   Haven't heard/seen a peep re the LS 600h, although I saw one on the dealer showroom with a "sold" sign on the windshield. I am still intrigued with the glowing review in the current Consumers Report about the 460L...that is the anthesis of my experience!
#86 of 86 2009 GS450h fuel economy by vigorlover Sep 17, 2009 (4:23 pm)
I have 6k miles on my GS450h, and the lifetime fuel economy reading is 26.1mpg. I have a city/highway mix of driving, on which my old cars got much less. (1998 Audi A4 2.8 got about 21.5, 1999 Jaguar XK8 convertible just over 20) I felt pretty good about these numbers, given the EPA estimates of 22/25 for the GS450h, until I saw comments here about folks getting 28+. I live in San Jose, California, and always use premium unleaded.

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