infinus

280-300 miles per tank 90% city 10% Hwy avg 21mpg and still have a few gallons left when I fill up.

mdsbrain

iTrader: (9)

Every once in a while a thread like this comes around and reminds me that my poor mpg is normal.

I do 80% city and avg. 16-18mpg and 220-250 miles a tank.

maj75

You want performance and mileage, buy a C6 Corvette with a 6 speed manual. I averaged 22 city/29 highway @ 75-80mph (not some wimpy 60-65mph). Over 450 miles on a tank of gas on the highway.

I know it's no Lexus, but I loved driving mine. It was a 3LT version loaded with Nav, big brakes and electronically adjustable suspension. Rode like a Cadillac on soft, perfect for in town, and very firm on "sport", perfect for the open highway. 400hp/400tq and the power delivery was very broad. I could live with the squeaks and noises by just turning up the stereo and blasting down the road.

mugenh22a4

iTrader: (9)

Lucky bastard...my commute to work is 23 miles each way.

PHXF

I get 300-310 pretty consistently. about 40 miles/day, 34 on the freeway around 75mph.

I used to get 1-2 mpg better before I switched to wider tires...

SCCAForums

Oh Man... I'm just about to put on 255 Frt... 275 Rears... Guess I'm going to lose a couple MPG's!

Peace,
Dave

airlaird

Wow...as little as 220 to 300 per tank!!...obviously a lot of different driving styles...BUT, I'm liking the numbers MUCH better now....anything between 250and 300 is awesome! Thanks guys!
airlaird

PHXF

Yeah. It's interesting to think about what the IS-F could have been from the factory, if certain "lexus" things hadn't gotten in the way. Just a few things off the top of my head:

-wider tires, had they not endangered the no-gas-guzzler status
-higher rev limit and more power, had it not endangered the 200,000 mile reliability standard
-nav that operates while driving, had the lawyers not been involved

I'm not really complaining about the first two; but they are interesting choices...those two combined would have made the IS-F arguably the fastest car in the class and STILL the least expensive...

cholmes1

THEORETICALLY: If you look at the thread I started about highway MPG and this website you should be able to get over 300 miles on a tank if you drive at a moderate pace without any speed runs or starting and stopping excessively.

http://www.edmunds.com/lexus/is-f/20...tyle=101204604

Fuel tank capacity: 16.9 gal.
Range in miles (cty/hwy): 270.4/388.7 mi.
EPA mileage est. (cty/hwy): 16/23 mpg


Keep in mind that several members have been able to get 26-28mpg on the highway pretty easily which would also raise your range quite a bit. Placing you well over 400 if you are on a very long stretch from tank to tank.

Joe Z

iTrader: (10)

I'm good for 320 miles per tank till ZERO and then I usally go past another 10 miles..

Im 90% fwy and 10% city.. with no real WOT runs...

Differences for me is that my 32 mile trip in the morning is completed in 35 mins, going 70-75 mph

While my 32 mile trip in the evening takes 1hr 20 mins in slow LA traffic doing like 35 mph + or -...


Joe Z

ShadowISF

iTrader: (10)

I get around 16 MPG with 90% city and 10% freeway. :/

bnizzle87

I feel ya Joe! I don't even mind alternate routes that take longer in distance if it means bypassing traffic and getting where I need to be sooner.

F BOMB

Last year, I was successful of passing the 30 mark on a trip from Chicago to the North Woods of Wis. Naturally, only during the highway portion could this be possible.



After stop and go local traffic, it started coming down to more realistic numbers.



With the reserve capabilities of the vehicle, I think 500 is achievable, but the vigilant driving and nerve-wracking conclusion would not be worth it.

archie

it is very possible to get over 30mpg on long highway runs.

pulling out my receipts from a trip to st george utah, which is right around 365 miles from my house to our hotel, then a short trip to the gas station i took 12.011 gallons of gas. quick math puts that right 30.3 mpg. looking at the receipt from fill up from our home town, to check in time receipt we average about 71mph on this journey.

usually, most of my driving is in the city, and during the week my longest trip is 15 miles one way, with my average trip being less than 3 miles. depending on how spirited my driving is, i can average anywhere from 12mpg or 18mpg.