Lexus GS 450h MPG-Real World Numbers

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

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#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.