Posted: Dec 26 2007 at 12:36pm | IP Logged

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boneyard10;

Welcome to the Frontier group.

... You are correct… many vehicles do get poor mileage during break-in. The new fuel mileage ratings are fairly accurate. Please check out the many fuel mileage threads in the forum.

It would be nice if our members would add their vehicle information to their signature (similar to mine) plus add their City and State . A member in the same town might be willing to drop by and help you with a problem. Or drink all your beer!

Posted: Dec 27 2007 at 7:43pm | IP Logged

It'll get better. For starters, the computer that calculates the milage counts your idle time as well as drive time. So, with it being cold outside, if you let your truck warm up, it will kill the mpg. 

I got mine in the middle of June, so this was not the case.  However, I had a noticable increase in my MPG's after around 3,000 miles.  I now get about 24 to 25 on the highway (only one person on flat highway).  I did notice when I started uphill, the milage started dropping.  I don't really drive city, it's more of a city/highway.  In that I get 17.5 to 18.3.  I'm pleased with both those since I only got about 16.5 mpg city/highway in my much smaller Chevy S-10. Hope that helps..