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Old 03-29-2009, 02:05 PM   #7 (permalink)
Shotgun
6.0 Liter L76 V8
 
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Join Date: Jan 2006
Location: Southeast USA
Drives: 1999 GMC, 2007 Buick, 2005 Chevrolet
Posts: 2,275
Re: '07 Entourage - 2 years, 24k miles

Quote:
Originally Posted by BlackGTP View Post
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...
I'm not real sure how it works. It is usually consistent in the difference, I agree. Of course, you can never go wrong with a manual calculation...unless it's not completely full. Have done that, accidentally, and it definitely shows in the numbers!
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