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Old 07-21-2008, 03:34 PM   #64 (permalink)
USA1Fan
5.3 Liter Vortec V8
 
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Join Date: Oct 2004
Location: currently in the Asheville NC area
Drives: me:08 Malibu LTZ 3.6 wife:07 Trailblazer LT
Posts: 1,319
Re: 2009 fuel economy

Quote:
Originally Posted by SierraGS View Post
I doubt you have ever got anywhere near 33 MPG in a 3.6L Aura.

Sorry, but I have asked dozens of owners of 3.6L powered cars and reviewed hundreds of posts/reviews online from owners of the same and most are in the 24-28 range. That is better than most competitors and better than the EPA rating, but not better than similar research shows what most 3.5L powered vehicles get (30-35) and many get 24 MPG in "mixed" driving.
It's entirely possible that someone got 33 in the 3.6L Aura. My best tank so far in my 3.6L Malibu was 32.2, and I expect that I could have even higher on an all-highway trip (haven't done one of those yet). This is still mostly highway, but was one of my week's commutes (er, a week worth, duh).

True, most of my tanks have returned somewhere between mid 28 and 31, but I could easily see hitting 33, just not routinely.

As far as the whole discussion between the 3.5 and the 3.6 go though, I have to side with you. The 2004 3500 (non-VVT 205hp version) in our old Malibu easily got 34 highway all the time, and on those same long trips would return 36 or so, with a high of just over 38 for one of them. Even though the fuel economy for the newer VVT engine dropped a little, it's still rated at around 3 mpg better than the 3.6, so I'd expect it to actually return an average about that much better for most drivers.
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