GS - 2nd Gen (1998-2005) Discussion about the second generation GS300, GS400 and GS430 (1998 - 2005)
View Poll Results: What's your average gas mileage in your GS300/400/430?
Under 14 MPG
49
6.16%
15-16 MPG
87
10.94%
17-18 MPG
168
21.13%
19-20 MPG
256
32.20%
21-22 MPG
142
17.86%
Above 22 MPG
93
11.70%
Voters: 795. You may not vote on this poll

GS 300/400 Gas mileage?

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Old 02-05-08, 05:10 PM
  #226  
flipicanez
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Originally Posted by BigManne
well i went to Mardi Gras this past weekend and managed 275 miles out of a half tank of gas. Is my car on drugs or was it magic?
These cars for their size really do well on the highway. I'm not surprised.
Old 02-12-08, 09:14 PM
  #227  
jspecdan
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hmm, i got about 19mpg in the city and 25mpg on a trip to chicago this past weekend.
Old 02-13-08, 11:14 AM
  #228  
3UZFTE
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I couldn't get over 21 if i tried, but i don't try. I can't not drive this power factory and not drive 80+ mph, i seriously get on the highway.. look down and make sure i'm not going over 90. Needless to say anyone who comes by me, i can't help but challenge them and say... how they like my tail lights.. By the way my GS430 shifts into 5th gear with the pedal floored at 155mph!! and i still got 17 mpg on average when i filled up... i love it!
Old 02-13-08, 05:20 PM
  #229  
MJImport
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Originally Posted by 3UZFTE
I couldn't get over 21 if i tried, but i don't try. I can't not drive this power factory and not drive 80+ mph, i seriously get on the highway.. look down and make sure i'm not going over 90. Needless to say anyone who comes by me, i can't help but challenge them and say... how they like my tail lights.. By the way my GS430 shifts into 5th gear with the pedal floored at 155mph!! and i still got 17 mpg on average when i filled up... i love it!

Remind me not to buy your car when you sell it.... haha
Old 02-14-08, 07:39 AM
  #230  
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Why would i sell it?
Old 02-14-08, 02:40 PM
  #231  
qwaller
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Please no liar remarks. I typically get 26.5 on the interstate, but did break 28 once, nonstop average 350miles.
Old 02-17-08, 08:23 PM
  #232  
litesoarer
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300? or 400?
Old 02-29-08, 08:04 AM
  #233  
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So with all this talk on the other subforums about more fuel efficient cars and my own desire to have something that is more fuel efficient, I tried to maximize my fuel efficiency in my 1998 GS3.

My goal was to accelerate smoothly while keeping the revs as low as possible and out of 334 miles, I only revved the engine above 3200 RPMS once and that was to slip through a couple of lanes on a highway transition.

The resulting MPG: 22.



I wish I had a GS4.
Old 02-29-08, 08:46 AM
  #234  
TruPlaya26
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Originally Posted by cliffud
So with all this talk on the other subforums about more fuel efficient cars and my own desire to have something that is more fuel efficient, I tried to maximize my fuel efficiency in my 1998 GS3.

My goal was to accelerate smoothly while keeping the revs as low as possible and out of 334 miles, I only revved the engine above 3200 RPMS once and that was to slip through a couple of lanes on a highway transition.

The resulting MPG: 22.



I wish I had a GS4.
Was this all city driving? Highway? Mix?
Old 03-01-08, 11:48 AM
  #235  
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This was mixed driving but my car has some mods that would affect the mpg.

18x8.5 / 18x9.5 wheels, a rather large box in the trunk that holds a jl 13w7.



What's crazy is that a local CL member has a first gen GS with a GTE engine swap and he gets 20 mpg consistently with occasional bursts of speed.
Old 03-02-08, 06:42 AM
  #236  
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Originally Posted by cliffud
So with all this talk on the other subforums about more fuel efficient cars and my own desire to have something that is more fuel efficient, I tried to maximize my fuel efficiency in my 1998 GS3.

My goal was to accelerate smoothly while keeping the revs as low as possible and out of 334 miles, I only revved the engine above 3200 RPMS once and that was to slip through a couple of lanes on a highway transition.

The resulting MPG: 22.



I wish I had a GS4.
it might have something to do with the rear end.

GS4: 3.26
GS3: 3.73 or 3.76
Old 03-02-08, 08:11 PM
  #237  
j stuff
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im exactly on the 3/4 mark and i have gone 240 miles. im hoping for 300 total at least
Old 03-04-08, 11:51 PM
  #238  
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update

17.58 mpg mixed city and freeway
Old 03-05-08, 12:05 PM
  #239  
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21 mpg city/freeway
Old 03-10-08, 10:07 AM
  #240  
rstrong
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GS 300 Consistently over 22mpg. From TX to AL got just under 27.


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