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Old 07-30-2009, 03:57 PM   #1
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Question What kind of MPG is your LS3 getting?

Not like that is the reason why we are buying/bought the LS3 SS, but I was just curious as to what kind of MPG numbers people are getting once the LS3 is broken in. So go ahead and state your octane and MPG numbers!
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Old 07-30-2009, 04:02 PM   #2
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91 Octane 1600 miles. Averaging 18.5 - 19 in mixed driving 60% city 40% highway. I have seen as low as 12-13 MPG with only neighborhood driving (picking up and dropping off the kids). I've also seen as high as 20.9 for mountain driving and NOT being easy on it for 400+ miles. Haven't really taken it on a long flat road trip.
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Old 07-30-2009, 04:04 PM   #3
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DIC says 18.1 and on a recent trip from San Antonio to Kansas and back to San Antonio I averaged 25.7.

More than happy with my mpg so far...almost 5,000 miles on the car and nothing but 93 octane save for one tank full while passing thru Oklahoma where it would seem 91 octane is the highest you can get? WTF?
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Old 07-30-2009, 04:19 PM   #4
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Buy a V6 if it matters.
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Old 07-30-2009, 04:22 PM   #5
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17 and change. Mostly city, some stop and go. Stop & go traffic kills the mpg. 93 octane
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Old 07-30-2009, 04:25 PM   #6
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Buy a V6 if it matters.

Read first post::

What kind of MPG is your LS3 getting?
Not like that is the reason why we are buying/bought the LS3 SS, but I was just curious as to what kind of MPG numbers people are getting once the LS3 is broken in. So go ahead and state your octane and MPG numbers!
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Old 07-30-2009, 04:27 PM   #7
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Quote:
Originally Posted by Legend View Post
DIC says 18.1 and on a recent trip from San Antonio to Kansas and back to San Antonio I averaged 25.7.

More than happy with my mpg so far...almost 5,000 miles on the car and nothing but 93 octane save for one tank full while passing thru Oklahoma where it would seem 91 octane is the highest you can get? WTF?
you cant always listen to what your DIC tells you...it can get you into trouble!!!
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Old 07-30-2009, 04:40 PM   #8
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Quote:
Originally Posted by logan1080 View Post
Read first post::

What kind of MPG is your LS3 getting?
Not like that is the reason why we are buying/bought the LS3 SS, but I was just curious as to what kind of MPG numbers people are getting once the LS3 is broken in. So go ahead and state your octane and MPG numbers!
I posted a similar thread a while back and got the same sort of responses

Anyways, I'm getting around 17.5 mixed driving, mostly city. Probably 15 - 16 city, but on a highway trip I got just over 24.
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Old 07-30-2009, 04:42 PM   #9
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I'm getting 16MPG on average...
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Old 07-30-2009, 04:44 PM   #10
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Originally Posted by Miketebo22 View Post
you cant always listen to what your DIC tells you...it can get you into trouble!!!
LOL! Yea you should always listen to the big head and not the little one.
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Old 07-30-2009, 05:17 PM   #11
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91 Octane and between 19-21 mpg. Reseting the average on the freeway for a 25mile trip to a buddies house i was getting 25mpg.
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Old 07-30-2009, 05:20 PM   #12
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16MPG average, mostly freeway. I know I drive a little "aggressive" but there is no way you can get the advertised 24mpg and still have fun
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Old 07-30-2009, 05:27 PM   #13
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19-20 @1200 miles. . . lots of "spirited driving"
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Old 07-30-2009, 05:44 PM   #14
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92 octane, I averaged 22.3 on a 800 mile round trip to Little Rock, cruising around 80+ mph
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Old 07-30-2009, 09:57 PM   #15
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I have yet to reset my MPG display, and it's currently sitting at 18.3. I'm 1400 miles and will do my first oil change at 1500 (probably next weekend). I'll reset the calcs at that point and report back in this thread!
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Old 07-30-2009, 10:01 PM   #16
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26.8 on a 120 mile trip last weekend
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Old 07-30-2009, 10:45 PM   #17
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AVG 19.6 so far.
I get 27 mpg@70 mph, gotta love that overdrive
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Old 07-30-2009, 10:46 PM   #18
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I've been driving slow and I get 16MPG on average.. This thing sucks up the gas pretty good.. Highway was higher ofcourse but I forgot to calculate it then..
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