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Old 02-03-13, 06:46 PM   #1
bigblack06
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Default What am I doing Wrong!

Ok so I've been getting poor gas mileage numbers I can't say I'm trying my hardest to get good numbers, but I swear these numbers are terrible. I seem to be averaging 16-17 MPG. I usually fill up when the needle gets to half a tank. What am I doing wrong.
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Old 02-03-13, 07:09 PM   #2
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You're not alone buddy. I'm hovering around 15 lol. It's purely the way I drive though so I know nothing's wrong.
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Old 02-03-13, 07:19 PM   #3
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i third that... i'm getting 14.4.... and with the 2013 ES350 loaner i'm getting 23.4. used to get 16.0 i the GS and now it's decreasing. i was told by a techie that... i could have gotten some watered down gas, and to let it run out and fill up again. i use BP 93 and i only frequent 2 gas stations. well, i let it run out twice and still the same thing.
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Old 02-03-13, 07:27 PM   #4
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miss your hybrid yet? I also get similar numbers, but I'm used to seeing these numbers. The 3GS I had before showed identical #s....
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Old 02-03-13, 07:29 PM   #5
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I drive a lot of mixed driving and I think the biggest things with this car are speeds under 85 and in general, not too much on/off with the throttle. I like how intuitive the tranny/motor are (easy downshifts for passing even in Eco) but I suspect it's not so great for mileage.
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Old 02-03-13, 07:41 PM   #6
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I'm getting between 18-19 in the city and 23 (actually reached 24) in mixed driving. I have a lead foot and drive mostly in Sport in the city, so I know it's not the type of driving. I have 6,000 miles on my GS, so it is well past the break-in period. Maybe I shouldn't trust the trip computer and start doing the calculations myself?
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Old 02-03-13, 08:07 PM   #7
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everytime i fill up the trip computer says i have 294mpg but when i calculate it i would get around 320. so it seem like the computer is slightly off. and also i was on ethanol free fuel, i am testing with chevron vs ethanol free and so far ethanol free is around 1.5mpg more than ethanol fuel.
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Old 02-03-13, 08:43 PM   #8
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Quote:
Originally Posted by SNiiP3R View Post
miss your hybrid yet? I also get similar numbers, but I'm used to seeing these numbers. The 3GS I had before showed identical #s....
Hell yeah, it was sold today and I was saying to myself that thing had great gas mileage. My service guy told me that I need to let it break in the numbers will get better with more mileage. I hope so as these numbers are no where near the expected numbers. Maybe its because of the colder temps, that we are getting these numbers.
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Old 02-03-13, 08:44 PM   #9
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Quote:
Originally Posted by sydtoosic View Post
i third that... i'm getting 14.4.... and with the 2013 ES350 loaner i'm getting 23.4. used to get 16.0 i the GS and now it's decreasing. i was told by a techie that... i could have gotten some watered down gas, and to let it run out and fill up again. i use BP 93 and i only frequent 2 gas stations. well, i let it run out twice and still the same thing.
About right with the winter gas, your mileage goes down by 1to 2 miles per gallon.
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Old 02-03-13, 08:58 PM   #10
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Quote:
Originally Posted by SNiiP3R View Post
miss your hybrid yet? I also get similar numbers, but I'm used to seeing these numbers. The 3GS I had before showed identical #s....
My 5gs will be electric or some form of hybrid
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Old 03-28-13, 04:48 AM   #11
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So instead of starting a new thread I thought, i'd use this thread. So my GS is getting better mpg, the warmer months do give better gas mileage. I had a range of 254, now I'm getting a range of 286 not a bad jump especially mpg.
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Old 03-28-13, 07:48 AM   #12
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When I fill mine up it shows 315 miles range. I'm getting 19 in town and 26 on the highway. I don't drive hard and I use Eco in. town with a occasional Sport+. And drive about 75 on highway. I have not been able to get the rated highway mileage however no matter how hard I try.
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Old 03-28-13, 08:12 AM   #13
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When I fill mine up it shows 315 miles range. I'm getting 19 in town and 26 on the highway. I don't drive hard and I use Eco in. town with a occasional Sport+. And drive about 75 on highway. I have not been able to get the rated highway mileage however no matter how hard I try.
I'm getting close!
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Old 03-28-13, 08:31 AM   #14
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Keep in mind that when the car's computer calculates mpg, it is using the MOST RECENT measurements for injector pulse width and speed.

Try doing a manual calculation on a full tank of gas and you will be pleasantly surprised.
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Old 03-28-13, 09:49 AM   #15
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Also, AWD sticker states 2MPG less than RWD....
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Old 03-28-13, 09:49 AM
 
 
 
 
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