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Lexus IS 350/IS 250 Real World MPG Numbers

41 messages,  Last post on Jan 14, 2008 at 2:02 PM

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What is this discussion about? Lexus IS 350, Lexus IS 250, Fuel Efficiency (MPG), Sedan

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#22 of 41 IS 250 RWD mileage by from_fl Jun 20, 2006 (4:26 am)
I am getting ~31 mpg(75%-80% freeway). The car will go 400+ miles per tank. Replies to this message: richey02hg (Jun 20, 2006 8:04 am) from_fl (Jun 20, 2006 5:34 pm) icp_professor (Jun 20, 2006 12:21 pm)
#23 of 41 Re: IS 250 RWD mileage [from_fl] by richey02hg Jun 20, 2006 (8:04 am)
Replying to: from_fl (Jun 20, 2006 4:26 am) hey fl, thanks for the info...thats great mileage!   which IS are you driving? Replies to this message: from_fl (Jun 20, 2006 5:34 pm)
#24 of 41 Re: IS 250 RWD mileage [from_fl] by icp_professor Jun 20, 2006 (12:21 pm)
Replying to: from_fl (Jun 20, 2006 4:26 am) I am getting 29.4 average over 3700 miles based on trip computer. 80% Hwy. IS 250 RWD. Average speed on Hwy 75-80 mph.
#25 of 41 Re: IS 350 Fuel Economy [rocketguy3] by cc12359 Jun 20, 2006 (3:13 pm)
Replying to: rocketguy3 (May 07, 2006 11:13 pm) same as mine ecp power off f its on, it will go down to 19
#26 of 41 Re: IS 250 RWD mileage [richey02hg] by from_fl Jun 20, 2006 (5:34 pm)
Replying to: richey02hg (Jun 20, 2006 8:04 am) Six-speed Automatic. Freeway speed 60-80 mph.
#27 of 41 Re: IS 250 AWD mileage by nross Jun 22, 2006 (9:16 am)
I have the IS 250 AWD. My typical drive is mostly suburban with some local traffic and some highway. Its a 40 mile round trip commute. At first I was averaging 23.8 MPG per tank, but after 5000 miles on the odometer I'm getting 24.2 MPG. When gas prices jumped over $3.00 per gallon, I tried my best to increase the mileage. I drove as if the was an egg under my right foot, and tried to coast as much as possible. I turned the airconditioning off. I got a 10% increase in mileage to 26.2 MPG per tankful. Not bad at all. For comparison, my ES 330 (2005) gets about 22 MPG on the same commute. This is interesting as the two cars have similar EPA ratings. However, the ES330 does it on regular fuel, while I put premium as recommended in the IS 250, so the mileage difference is almost a wash( when factoring the price difference of the fuel grades).
#28 of 41 Re: IS 250 AWD mileage by nross Jun 22, 2006 (9:22 am)
I noticed my last post on May 9th stated the mileage as 25.9 MPG when doing a lot of coasting. Since the engine is more broken in, I beat that mark with the 26.2 MPG per tank. Some times its fun to do this. Some times its more fun to put the trans button on power or just shift for yourself and hammer it!
#29 of 41 350 Mileage by truckasaurus Jun 29, 2006 (7:10 am)
I'm getting 19.0 MPG For mostly city driving.   An interesting number that folks might want to post with your MPGs is the average speed the computer says you have been going. Mine is 28 MPH.   I need to get out on the country twisty roads a bit more often!
#30 of 41 Re: IS250AWD mpg by toydriver Jun 29, 2006 (7:33 am)
I now have apprx. 2200 miles on the odo. My average mpg, since new, is 26.1 (combined city/hwy). On a single tank of gas I averaged 31.3mpg during a highway trip where I was driving interstate at about 70mph.   On my previous ES300 I was averaging about 21mpg with combined city/hwy driving.   The IS is much more "fun to drive" than the older ES and seems more responsive when accelerating from a stop (despite the lower hp/torque rating).
#31 of 41 IS 250 RWD mpg by indexc Aug 16, 2006 (8:46 am)
I have 7,600 miles on my IS 250 RWD. I have the 18" ISP Wheels. My average has been 28.4 mpg with 75%-85% highway driving at 70-75 mph. I can usually get right around 400 miles per tank.

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