Black Bear Tune on my 2011 5.3L Tahoe

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MACHO

MACHO

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Update:

1/14/13
2 tanks with 40% hwy 60% city lots of remote starting
744.6 miles/ 47.07 gallons = 15.8 mpg
16.2 mpg on DIC
 

Jay Perry

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Lucky for me Black Bear Tune is in town this weekend and I scheduled an appointment for tomorrow morning.. We shall see, going on a hunch and the positive feedback from this site.
 

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