I have 21k on my Suburban, at most I have used 4 boxes from Costco (~$15 each), plus two pump fills (~$12 each). That's $84. Round up to $100, that's 0.005c/mile.
Pretending I remembered incorrectly, let's say 8 boxes, $150 total, that's 0.007c/mile.
My lifetime MPG is ~24+. So for every...