My highway MPG
10-09-19, 08:15 PM
#16
@GibbsLexus Nice MPG. Is your GS RWD or AWD? Curious to know if this was done with the 6-speed or 8-speed
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signdetres (10-09-19)
11-12-19, 06:21 PM
#18
Lexus Champion
11-12-19, 07:53 PM
#19
Around town, like any v6 I average 18 or less mpg BUT on the highway I get as high as 27mpg average, and that's on the original Dunlop Summer Tires. I would imagine a Grand Touring Tire like the Primacy Tour A/S would get me 30 mpg 
11-13-19, 03:58 PM
#20
Driver School Candidate
11-13-19, 04:01 PM
#21
If you overinflate by an extra 5psi or so you can squeeze out more MPG and you may not notice much of a ride difference if you are traveling long distances with good roads. I typically average 30-33MPG in my 3GS on my trips back and forth between Houston and Austin back then.
11-14-19, 07:30 AM
#22
I'm driving 20 miles a day now round trip all local traffic. 15MPG. I like to keep my tires around 33PSI in the winter.
12-07-19, 10:12 AM
#23
Lexus Test Driver
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