NicLX470 Posted November 22, 2009 Posted November 22, 2009 Lately I have been getting really good gas mileage. On my tank right now the computer is averaging between 27-28 MPG. I never thought I could get it up that high with the 350. And I am not even trying to save gas either. I bet I could gain a few points if I drove in a sort of "econo" mode.
cadfael_tex Posted November 22, 2009 Posted November 22, 2009 That's great. I just put the first tank in my 350 so I don't know what kind of mileage I can get. That was a good thing about my MINI; I could bye Jeckyll or Hyde (floor it for fun or granny it for MPG) Is this a change from what you were getting? Any differences in driving style, gas, tires, etc?
Finsfan_9 Posted November 22, 2009 Posted November 22, 2009 I've had my IS250 for 8 months now and I'm getting around 27-27.5 MPG with equal highway and city driving.
lambobaby1218 Posted November 27, 2009 Posted November 27, 2009 So the 350s and the 250s are getting the same mileage? My overall is 27.8, and my normal tank is about 28. I do a lot of freeway driving......
NicLX470 Posted November 28, 2009 Author Posted November 28, 2009 That's great. I just put the first tank in my 350 so I don't know what kind of mileage I can get. That was a good thing about my MINI; I could bye Jeckyll or Hyde (floor it for fun or granny it for MPG)Is this a change from what you were getting? Any differences in driving style, gas, tires, etc? Usually when I pay attention it stays around 22-23mpg. But the past few tanks I have not been so "lead footed". I use Shell V-Power and have the factory Bridgestone tires.
smooth1 Posted November 28, 2009 Posted November 28, 2009 That's great. I just put the first tank in my 350 so I don't know what kind of mileage I can get. That was a good thing about my MINI; I could bye Jeckyll or Hyde (floor it for fun or granny it for MPG)Is this a change from what you were getting? Any differences in driving style, gas, tires, etc? Usually when I pay attention it stays around 22-23mpg. But the past few tanks I have not been so "lead footed". I use Shell V-Power and have the factory Bridgestone tires. I do the math on my phone just about every tank. I divide the miles I drove which is usually about 280-290 miles on a tank by how much fuel just went in. I almost always come up with 19.
NicLX470 Posted November 28, 2009 Author Posted November 28, 2009 That's great. I just put the first tank in my 350 so I don't know what kind of mileage I can get. That was a good thing about my MINI; I could bye Jeckyll or Hyde (floor it for fun or granny it for MPG)Is this a change from what you were getting? Any differences in driving style, gas, tires, etc? Usually when I pay attention it stays around 22-23mpg. But the past few tanks I have not been so "lead footed". I use Shell V-Power and have the factory Bridgestone tires. I do the math on my phone just about every tank. I divide the miles I drove which is usually about 280-290 miles on a tank by how much fuel just went in. I almost always come up with 19. I did that a few days ago to see if the gauge was correct. For some reason the gas gauge thinks the tank is lower than it is. Tank holds 17 gallons? I always drive it till after DTE states 0 and I can only squeeze at the most 14 gallons. And I was at around 380 miles on one tank. Which is around 27mpg.
Finsfan_9 Posted December 2, 2009 Posted December 2, 2009 I also get around 375-390 per tank and usually fill up when it says 10 miles or below. Get around 14 or so gallons in when I fill up.
justflyin83 Posted December 2, 2009 Posted December 2, 2009 Well first off the MPG meter on the car is not correct, they never have been. I get about 19.8 or so when I do the math when the onboard computer tells me I have nearly 21 MPG. I had a IS250 awd for a year and then sold it for a 350. I can honestly say the 350 gets the same gas mileage, actually alitte better on the hwy as I got 32 MPG on a 250 mile trip. The 250 is underpowered so even the most easy moves takes alot more from the motor which results in worse gas mileage. Everything about the 350 is done with ease and barely strains the motor. I noticed with my 250 I was always revving the motor out to get minimal power, always hanging around 6k rpms, the 350 will do the same in under 4k rpms. At 6k in my 250 I was doing the speed limit or alittle more just trying to pass, in the 350 6k rpms is jail time as your doing 90+ very quickly. That's just my personal expeirence with both cars.....
djrobsd Posted July 4, 2011 Posted July 4, 2011 19mpg with led foot on 2006 IS350... With no tune ups, only oil changes.... I get 21mpg average... 23 if I drive 65 and be very conscientious of my driving habits.... I live in San Diego so we have a lot of hills going from one mesa to another..
LEX-SV Posted July 5, 2011 Posted July 5, 2011 Did a 100 mile loop yesterday to the coast and back via 2 lane mountain and country roads mostly. Average was 25.5 mpg.
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