GS - 3rd Gen (2006-2011) Discussion about the 2006+ model GS300, GS350, GS430, GS450H and GS460

What s your avg gas mileage for gs350 awd??

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Old 02-22-18, 07:52 PM
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nobelnabil
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I live in Canada and I am averaging 12.5 Miles in Winter, 95% city driving
Old 02-23-18, 12:48 PM
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Lukas99GS
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Wow, my 460 gets better gas mileage than that, I usually average 24 in a mix and as high as 31 on road trips.
Old 02-23-18, 04:37 PM
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1lG
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Originally Posted by Wantboost
What are u guys avgeraing city highway or combined . State how much combined
thx
My GS350 is averaging 18-19 mpg city and 24-26 highway
Old 02-24-18, 09:43 AM
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sha4000
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Wife usually averages 19-20 with mostly city driving.
Old 02-24-18, 03:58 PM
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kddang
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getting 20-22 combined 08 350 awd
Old 02-24-18, 06:26 PM
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e-man
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Originally Posted by Dainiukas
Is there a way to completely turn off TCS? It keeps turning itself back on for me.
yes, there's a pedal dance you have to do with the brake pedal and the emergency brake. Do a search and you should be able to find it. If you do find it, please post the link to this thread.
Old 02-27-18, 07:33 AM
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XxGoKoUxX
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Originally Posted by tayslexus
Mine is pretty bad, I'm averaging 14.1 l/100 and used to get 9/10 l/100 when I got the car.
That's pretty average. Your MPG isn't bad at all... most of these people match exactly your mpg.

14.1 l/100=20mpg.

http://www.pacificwebsites.com/Conve...Kilometers.htm
Old 02-27-18, 06:52 PM
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gs350fan
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I got 29MPG on a 50mile non stop road trip at 55mph. One way was more up uphill, one downhill. I reset before I left. Almost hard to believe. Had cruise on.
Seems to get better mileage when it is warmer out. Have new plugs new air filter and clean TB.
Old 02-27-18, 07:10 PM
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tghw
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Originally Posted by gs350fan
I got 29MPG on a 50mile non stop road trip at 55mph. One way was more up uphill, one downhill. I reset before I left. Almost hard to believe. Had cruise on.
Seems to get better mileage when it is warmer out. Have new plugs new air filter and clean TB.
Not surprising at 55 mph on cruise. You'd never see that at 70-80+ mph which is pretty much average hwy speed just about anywhere in the US now.

Mileage always drops the colder the temp with any vehicle. I live in WI, avg. below 30F in winter, 75-80 in summer. The difference in mileage is noticeable.
Old 07-29-18, 10:11 AM
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Just4Me
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AWD 2008 GS350... From full till about a quarter tank.. mostly highway, maybe 100 miles in city.... A/C blowing and temp about 89 outside. cruise wasn't constant, sometimes i had to pass a few slower vehicles.. this was taken 7/27/2018

Last edited by Just4Me; 07-29-18 at 10:17 AM.
Old 07-31-18, 09:36 PM
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guzzy92fs
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Humm those are great numbers, my car AVG on the city is 10.7! I would love to improve it!

I think this post will be very helpful if anyone can share what maintenace can help into gaining some nice MPG.

I know that the following could help: (Throttle body cleaning, maf sensor cleaning, top engine cleaning with seafoam, running your tires with proper air (33-40 psi), having a good working PCV valve) any other tips?
Old 08-01-18, 04:00 AM
  #27  
gs350fan
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Originally Posted by guzzy92fs
Humm those are great numbers, my car AVG on the city is 10.7! I would love to improve it!

I think this post will be very helpful if anyone can share what maintenace can help into gaining some nice MPG.

I know that the following could help: (Throttle body cleaning, maf sensor cleaning, top engine cleaning with seafoam, running your tires with proper air (33-40 psi), having a good working PCV valve) any other tips?
10..7 MPG? Not normal, even in the winter. Maybe brakes dragging? Plugs could be bad too.
Old 08-01-18, 12:58 PM
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guzzy92fs
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I am living in the caribbean, temperature range from 29-34 celcius 84 - 93 farenheit.

Bakes dragging, I will check but they are 4 month old brake pads and last month I cleaned them good all 4 wheels.

Plugs are 1 year old, NGK as recommended... What else could be the cause? Maybe fuel air sensors? valve adjustments? my car is 116k miles by the way

Last edited by guzzy92fs; 08-01-18 at 02:00 PM.
Old 08-01-18, 01:17 PM
  #29  
Just4Me
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Originally Posted by guzzy92fs
I am living in the caribbean, brakes draggins, I will check, plugs are 1 year old, NGK as recommended... What else could be?
I wanna live in the Caribbean.... how jealous am i...

I bet you have a led foot. Each visit I've made to either st Croix, st Lucia, Jamaica, or even Bahamas . The drivers I've seen don't know the speed limit. It's either , foot to the floor or parked... 😄
Old 08-01-18, 01:59 PM
  #30  
gs350fan
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Exhaust leak? Do you have a scan tool to check fuel trims?


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