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Old 02-01-2018, 05:39 PM   #11
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Nice! I think the highest I ever had my MPG was around 42.4 Now I'm at around 25 MPG. That was at around 65 MPH.

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Old 02-03-2018, 06:34 PM   #12
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Nice! I think the highest I ever had my MPG was around 42.4 Now I'm at around 25 MPG. That was at around 65 MPH.
25 MPG!! How long has that been going on? I believe I'd have a stroke if my MPG went down that low. LOL
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Old 02-03-2018, 06:49 PM   #13
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25 MPG!! How long has that been going on? I believe I'd have a stroke if my MPG went down that low. LOL
About 6 months. I'm on that corn juice though, and I'm always running late, so 25 MPG. Otherwise I think I'd probably get somewhere in the low to mid 30s

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Old 02-04-2018, 01:14 AM   #14
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'13 1.8 5 speed sedan
I bought it with 112,000 hard miles. 119,000 now. Only checked mileage three times. Worst was 37, best was 41.4.
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Old 02-09-2018, 05:19 PM   #15
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I don't know how you guys are getting this high of MPG. I have had my 2100mile, 2017, 1.4t auto, hatch for less than a month and best I can get out of it is 34 MPG. I'm driving it like a "grandma" 30 mile commute. 3 miles at 50mph, 17 miles at 53mph, 6 miles at 60mph and 4 miles at 30 mph. I use my cruise control all the time. In the morning most to the traffic lights are green so not a lot of stop and go in the am.
I've owned several Chevy trucks and did find that they didn't get their best mileage until I hit the 45k mark. My last truck (2015 crew cab, 2wd, 5.3l Silverado) drove this same commute for 55k. When I traded it in for the Sonic the DIC display said 21.5 MPG. That's pretty dam good for as big a truck as it was. I expected a little more from the Sonic.
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Old 02-12-2018, 01:32 PM   #16
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A friend of mine has 2014 LTZ HB 1.4T automatic. He averages 34 MPG driving 70 miles to work. Not sure why most of the automatic Sonics are lower than manual. I'll bet it's due to the shifting point since we can pretty much shift at any RPM as long as the engine doesn't stall. On the Plus Side..... you have the convenience of an auto.
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Old 02-12-2018, 08:17 PM   #17
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I don't know how you guys are getting this high of MPG. I have had my 2100mile, 2017, 1.4t auto, hatch for less than a month and best I can get out of it is 34 MPG. I'm driving it like a "grandma" 30 mile commute. 3 miles at 50mph, 17 miles at 53mph, 6 miles at 60mph and 4 miles at 30 mph. I use my cruise control all the time. In the morning most to the traffic lights are green so not a lot of stop and go in the am.
The EPA says the car should get 36 highway and 27 around town, so 34 isn't too far off that:

https://fueleconomy.gov/feg/Find.do?action=sbs&id=37942

But are you somewhere cold? My winter MPG was definitely lower when I lived in Maine, and a bit lower here in NY. That could be part of it.

Also, are you getting the 34MPG from the DIC or measuring it at the pump? DICs can be off a bit. If you haven't done so already, worth checking a tankful of gas to see what you get.

You could also experiment with high octane expensive gas for a couple of tankfuls, see if that helps. It didn't in my case, but I've got a 1.8L non-turbo, so it might different.

Good luck.
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Old 02-13-2018, 05:52 PM   #18
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Dang, y'all getting like twice what I'm getting in my 2013.

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Old 02-14-2018, 04:59 AM   #19
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Very nice mpg there. I seem to average only around 30-35mpg I just shift before 2k it's mostly all city driving some interstate at 70-80mph.
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Old 02-14-2018, 05:07 AM   #20
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I can get 99 mpg on the San Mateo Bridge per the DIC on the down grade with a tail wind.
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