285/65/18 and 275/65/18 ?'s

[bizkit]

I was wondering from those of you that have these size tires what kind of MPG hit did you take? I have everything stock on my 2009 Sierra crew cab 4x4 with leveling kit? I do mostly highway riding. I do not think I would take a big hit with the 275/65's but would rather go with the bigger tire. I guess either one would be better than the stock 265/65's that come on the truck looks wise. Thoughts?

Original Poster bizkit Newbie
Posts: 7 Topics: 2 Images: 1 Blogs: 0 Joined: May 24 2014, 10:34am Location: N.C. Year: 2009 Make/Model: GMC Sierra Extra Info: 4x4 crew cab Group Membership:
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