Othic

Ive only had my 06 GS430 since Oct 31 But my average is 20mpg. I do about 40% highway on flat Florida roads.

voleduy

Well let's see what I can get for the next couple of days.

jdmek998

I have been averaging 21.6 in the city and 27.8 on the highway on my 350.So far its pretty good.

warandcar

i average 26MPG mixed city and highway...

texbanc

I have an 09 GS 460. Daily back and forth to work I average 19 to 20. Hi way driving is 27 to 28 if I am cruising around 75 to 80.

Tex

voleduy

by the way, it's been a year since I ran off for a G37s but then coming back for a Lexus.
Here is my new ride just picked up 2 days ago. Not sure if I need to drive it for a period of time before my MPG gets better.

voleduy

It's about right with a V8 engine 4.3 litter but mine is a V6 - 3.5 and my MPG is worse than yours ... must be something wrong here.

Othic

About what RPM is the car shifting at? 90% of the time I'm at or under 2k when it shifts.

warandcar

yes but also remember that our 460 has an 8 speed auto as opposed to your 6 speed auto…

voleduy

I know thats why I don't understand why.

voleduy

For the first 2 gears they stay normally between 2k-3k then the rest is below 2k. It's been consistent at 19.1 now in the city. It's gettig better but still not what I expected.

pewtang

Average i say 18city - 23hwy

Its going down though cause i got new exhaust and developed a heavy foot lol

SILENTM

How are you calculating the MPG? Are u Basing it off the gauge or are you calculating it at the gas pump? Miles / gal.

sr20mofo

iTrader: (10)

i dont know if i missed it or not but did you start off with a fresh full tank?

since you only got it 2 days ago, remember other people with heavy foot might have test driven it and i know at dealers when checking out the cars they tend to leave it running.

voleduy

Im based off the gauge thou. It also shows that I have approx. 330 miles for a full gas tank.