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?
06-29-03, 11:30 AM
#31
Lexus Fanatic
iTrader: (20)
Yup - drink one less Starbucks and hit the gas on the GS instead with the savings. 
06-30-03, 06:31 PM
#33
Rookie
Join Date: Jul 2002
Location: austin TX
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i just took a trip to san antonio from austin, and averaged 22.5 mpg. i did a little bit of city driving getting into and out of the cities. i was hoping for about 24 for this 95% highway mix. i normally get about 18mpg with 75% city, in a 98GS400.
07-02-03, 08:35 PM
#34
Lead Lap
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Join Date: Sep 2001
Location: California
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Originally posted by Ex996
11.4 in town, which is most of my driving. On road trips it almost doubles.
How can you have 3 and 4 in the same poll? 6 vs 8?
11.4 in town, which is most of my driving. On road trips it almost doubles.
How can you have 3 and 4 in the same poll? 6 vs 8?
and for me i am gettin about 14 MPG in my GS300 in about 60% highway/40% local streets, dunno why my gas mileage sucks so bad, but im guessin it has something to do with the extra weight from rims/stereo/heavy foot.
07-03-03, 10:26 AM
#36
Lexus Test Driver
It's amazing how good the gas mileage is on the highway. Perhaps the VVT engine helps there. My GS400 (before I turned it in on lease 
) was getting 22-24 on the highway and around 17 and change in the city.
I miss it, and will most definitely signup for a 2005 GS once redesigned.
) was getting 22-24 on the highway and around 17 and change in the city.I miss it, and will most definitely signup for a 2005 GS once redesigned.
07-05-03, 05:04 PM
#39
Pole Position
Join Date: Mar 2003
Location: Florida
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I get between 20 and 21 on my GS300 with 65%H/35%C and 26 HWY only with A/C on.
Don't know why I get such good mileage. Maybe because I live in flat Florida (highest elevation it's the city garbage dump pile!). I only use Mobil premium and punch it every now and then during the day.
On another subject, It's amazing how the car's main ECU "learns" your driving habits. If I reset the ECU by disconnect the battery for a while and drive like a granny for the first 100 miles or so my car will respond like a granny if I try to punch it but If I drive "spirited" after reseting the ECU.... what a difference they way it responds when I punch it. Anybody experienced this?
Don't know why I get such good mileage. Maybe because I live in flat Florida (highest elevation it's the city garbage dump pile!). I only use Mobil premium and punch it every now and then during the day.
On another subject, It's amazing how the car's main ECU "learns" your driving habits. If I reset the ECU by disconnect the battery for a while and drive like a granny for the first 100 miles or so my car will respond like a granny if I try to punch it but If I drive "spirited" after reseting the ECU.... what a difference they way it responds when I punch it. Anybody experienced this?
08-07-03, 07:52 AM
#41
Lexus Test Driver
Stop counting the m/g
I don't know since when I start not to count the mile/gal... Just fill it up every Wednesday and Sat night. But the car eats up about 1 Galon for every 20 miles.... Can't tell! I never let it runs on E!!!!
05-11-04, 06:20 PM
#44
Lead Lap
Join Date: Jun 2002
Location: New Jersey
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my car gets about 305 to 310 per tank full with half city and half highway driving
on pumpgas 93 octane ...also note the car still has the stock plugs in it ill see how it does this weekend when i swap out the old ones with new ones and also when i put in my K&n air filter
on pumpgas 93 octane ...also note the car still has the stock plugs in it ill see how it does this weekend when i swap out the old ones with new ones and also when i put in my K&n air filter
05-12-04, 03:50 PM
#45
Since I've gotten it, I've averaged about 21mpg....1/2 city, 1/2 freeway. Thats real MPG, not what the computer said, although it said 21.5 when my math told me 21 flat. My avg speed is also always very low, almost always at 30mph, even though I go 80+ on all the freeways.