Miles to Empty?
#17
Lexus Champion
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Originally Posted by IS250HuNnY
wow your IS350s are crazy! my IS250 manual gets about 22-24 mpg, i drive mainly only streets. ive been shifting at low rpms recently to save a lil bit of gas
#18
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Originally Posted by Gernby
Based on the responses here, I don't think you can really make that conclusion. If I drive conservatively, I can maintain 21-22 on mostly city streets. I suspect that the remaining difference could easily be due to the fact that you have a manual tranny and a lighter car.
#19
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I've consistently gotten between 22.5 and 24.5 mpg per tank. 90% highway but when i sit in traffic it really kills the mpg which is often.
the most gas I've put into the tank was 16.5 gallons and I had over 410 miles on that tank!
The gas light comes on at about 13 gallons consumed, and 0 miles left hits at about 15 gallons.
the most gas I've put into the tank was 16.5 gallons and I had over 410 miles on that tank!
The gas light comes on at about 13 gallons consumed, and 0 miles left hits at about 15 gallons.
#20
Lexus Champion
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Originally Posted by 4TehNguyen
IS250 and IS350 dont weigh that much differently to make that big of a mpg difference. The 250 automatic actually makes better mpg than the manual according to lexus, check it out if you dont believe me. Shifting early and getting to top gear earlier will save you gas, you will be a little slower than someone else who doesnt but you save gas
Even still, I think the difference is more easily disregarded by differences in driving styles, climates, altitudes, and break-in mileage.
#21
Racer
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Originally Posted by IS250HuNnY
wow your IS350s are crazy! my IS250 manual gets about 22-24 mpg, i drive mainly only streets. ive been shifting at low rpms recently to save a lil bit of gas
#22
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I think I drive pretty conservatively, and i've been average ing 15.5-15.9 mpg. Not what i had expected. Tank average shows an even more dismal 14.5 avg. What gives? Do I relly need to baby the thing to get in the 20 mpg range?
However, this is still better than the 9-11mpg my STi was giving me.
Greg
However, this is still better than the 9-11mpg my STi was giving me.
Greg
#23
Lexus Champion
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Originally Posted by glilly
I think I drive pretty conservatively, and i've been average ing 15.5-15.9 mpg. Not what i had expected. Tank average shows an even more dismal 14.5 avg. What gives? Do I relly need to baby the thing to get in the 20 mpg range?
However, this is still better than the 9-11mpg my STi was giving me.
Greg
However, this is still better than the 9-11mpg my STi was giving me.
Greg
#24
Racer
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Originally Posted by glilly
I think I drive pretty conservatively, and i've been average ing 15.5-15.9 mpg. Not what i had expected. Tank average shows an even more dismal 14.5 avg. What gives? Do I relly need to baby the thing to get in the 20 mpg range?
However, this is still better than the 9-11mpg my STi was giving me.
Greg
However, this is still better than the 9-11mpg my STi was giving me.
Greg
Edit:
Aside from your exhaust, I see you've also changed your wheels/tires; this alters the revolutions a wheel spins per mile. This can affect your speedo readout, and the two in combination may just as well affect the MPG calculation your car is attempting to determine.
Last edited by Lets Drive; 08-04-06 at 07:50 AM.
#26
I commute 154 miles roundtrip a day in my 250 MT with 17" stock wheels, only 20 miles of city driving so what, 85% HWY using cruise control. Lifetime MPG is 30.1MPG.
@65mph with AC On, 42 MPG
@70mph with AC On, 34 MPG
@70mph with AC Off, windows up, 36MPG
@75mph with AC On, 28 MPG
Here is a picture after driving at 65MPH for 60 miles and includes 10 miles of city driving, but still, the city driving is only 5 lights in the 10 miles. All miles were virtually flat driving, not many hills:
I'll have to take a pic when the tank is almost empty and still over 40 MPG. Maybe next week. Won't happen over the weekend when the wife takes the car
@65mph with AC On, 42 MPG
@70mph with AC On, 34 MPG
@70mph with AC Off, windows up, 36MPG
@75mph with AC On, 28 MPG
Here is a picture after driving at 65MPH for 60 miles and includes 10 miles of city driving, but still, the city driving is only 5 lights in the 10 miles. All miles were virtually flat driving, not many hills:
I'll have to take a pic when the tank is almost empty and still over 40 MPG. Maybe next week. Won't happen over the weekend when the wife takes the car
Last edited by sailing217; 08-04-06 at 08:01 AM.
#28
Racer
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Originally Posted by Gernby
Wheel and tire changes won't change gearing (or speedo / MPG calcs) unless the new tires have a larger or smaller outer circumference.
#29
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IS250AWD,,, tank average 27 to 28 mpg
80% highway
Average since I have had the car 27.4mpg
and i use 89 oct. gas
40mpg WOW!!!!!!!
80% highway
Average since I have had the car 27.4mpg
and i use 89 oct. gas
40mpg WOW!!!!!!!
Last edited by NikoAWD; 08-04-06 at 08:51 AM. Reason: gas
#30
Originally Posted by javylsu
In regards to the gas mileage, these cars are REALLY sensitive when it comes to the RPM's... the lower you keep your RPM's, the better your gas mileage. I usually get about 18 mpg (all city driving). This week I got an opportunity to take a 100-mile round trip on the freeway. I set the cruise on 65 mph and left it alone... and got 32.8 MPG!!!
Javier
Javier