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Lexus ES 350 Real World MPG

64 messages,  Last post on Feb 05, 2009 at 7:41 PM

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What is this discussion about? Lexus ES 350, Fuel System, Sedan

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#57 of 64 2008 ES 350 Gas Mileage by turbobill Mar 06, 2008 (12:12 pm)
WIth over 6,500 miles on the clock, my 2008 ES 350 has averaged a carefully calculated 26.3 miles per U.S. gallon. The three worst fillups, which included a lot of stop-and-go city driving, averaged 20.7 miles per U.S. gallon and the best three fillups, which were exclusively Interstate driving, averaged 32.6 miles per U.S. gallon.
#58 of 64 32.5 mpg....Awesome!!!! by praz Mar 26, 2008 (1:37 pm)
http://www.edmunds.com/advice/fueleconomy/articles/125158/article.html?tid=edmun- ds.h..topfeatures.testtips.0.*
#59 of 64 Update on my '07 350 by dubldoc Apr 15, 2008 (7:31 pm)
Just to update my earlier post, I now have 24K miles on my car, about 60% in town,40% Hwy, and my overall mileage is 25.7 since the day I bought the car (and I drive pretty hard)... so I'm pretty happy. Haven't had to replace a single item other than oil and filters. I do recommend a K+N air filter for better breathing and a couple more HP. While I'd like another 30HP (am considering a chip), I've had the car up to 135mph with only 4000rpm... still had room to go... but didnt want to tempt fate further. I did just replace my Michelin MXV's with Falken ZE 912 Z rated 235/50's... about 3/4" shorter, slightly stiffer ride, but, oh god, do they hold the road! Somehow, an Avalon just doesnt compare in excitement and style.
#60 of 64 2008 ES350 Octane Requirement by phili1263 Jun 02, 2008 (3:22 pm)
I am considering buying either a 2008 or 2009 ES350. The Lexus's salesman told me that the owners' manual says you need 91 octane gasoline. He said I could use regular unleaded gas on one fill up of gas and switch to the 91 octane gas on the next fill up of gas. My question is has anyone used regular unleaded gas instead of the 91 octane and didn't have any performance problems with their ES350? Replies to this message: nyeagle (Jun 02, 2008 5:26 pm) tango19 (Jun 07, 2008 5:21 am) johnymack (Jun 05, 2008 3:36 am)
#61 of 64 Re: 2008 ES350 Octane Requirement [phili1263] by nyeagle Jun 02, 2008 (5:26 pm)
Replying to: phili1263 (Jun 02, 2008 3:22 pm) Any significant changes in the ES from 08 to 09? Replies to this message: tango19 (Jun 07, 2008 5:21 am)
#62 of 64 Re: 2008 ES350 Octane Requirement [phili1263] by johnymack Jun 05, 2008 (3:36 am)
Replying to: phili1263 (Jun 02, 2008 3:22 pm) I have a 2007 ES350 with 11,000 miles and have been using 87 octane from the first time I have ever filled the first tank. I cannot tell any different and the car runs great with plenty of power. I absolutely love this car. My previous car was an E320 Benz and I drove that car for 5-years putting in 91 octane the whole time, right before I sold it I switched to 87 octane and was surprised to find out there was no difference. I was pissed that I wasted all that extra money for nothing buying 91 octane. When I bought my ES I asked the same question to the sales guy and he told me that his parents put 87 octane in their Lexus and have had no problems. I would not switch back and forth; I would pick one and stay with it. Same thing with oil, pick one brand and stay with that brand.
#63 of 64 Re: 2008 ES350 Octane Requirement [nyeagle] by tango19 Jun 07, 2008 (5:21 am)
Replying to: nyeagle (Jun 02, 2008 5:26 pm) There won't be any announcements about 2009 changes in the ES until closer to fall. As with changes to the 08 models, don't expect much.
#64 of 64 Real World Gas Mileage for a 2008 ES-350 by turbobill Feb 05, 2009 (7:41 pm)
Now that my '08 ES-350 has passed the 20,000 mile mark, here are the carefully kept figures on gas mileage. After 73 fillups, the average is 27.4 miles per US gallon from a mix of probably about 50% highway, 20% urban and 30% rural driving. The best 10 fillups averaged 32.6 mpg (highway) and the 10 worst fillups averaged 21.2 mpg (urban). All of the above was on 91 octane or higher fuel. I'm pretty light-footed, but my wife (Lady Leadfoot) has been the major driver of this car.

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