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Old 03-29-2009, 01:37 PM   #6 (permalink)
BlackGTP
3.0 Liter SIDI V6
 
Join Date: Jul 2008
Location: Connecticut
Drives: 2008 Chevy Malibu LTZ
Posts: 630
Re: '07 Entourage - 2 years, 24k miles

Quote:
Originally Posted by Shotgun View Post
I always calculated my mileage since I was 16. I have found the Rainier display to be within a tenth or two of actual mileage, and the Malibu display is actually about 2 mpg lower than actual. Which, of course, is good to me! When we had our '06 Town and Country, the display was about 1.5 mpg higher than actual.
Interesting - I've had three GM cars with the trip computer and they always come out optomistic - 94 Grand Prix GTP, 02 Grand Prix GTP and the 08 Malibu LTZ. I just had a thought - I wonder if the computers calculation of the milage are calibrated for the regular V6s and not the upper level one's in the cars I've had.... I calculate every tank I put in - never once have I gotten higher than the trip computer...
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