You might note that the V6 has a higher rear axle ratio (3.73:1) and the V8 has the lower ratio (3.55). This explains at least in part the minimal fuel economy difference between the two engine options (about 1 mpg). The guide suggests that the higher rear axle ratio is also available for the V8 as an option. IMHO it would be a good compromise, despite the bonus towing ability gain, not to take up this option since you will probably want the fuel economy for your everyday commuting use.
Just a thought from a non-Coloradoan.
-Paul
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