My COLA is different for Va-Oklahoma-VA in 2 weeks time versus a La Tx Ok trip or Fl. from Va. I figure CPM is a standard .50, CG cost per week and then food is the same for us as we buy at Costco or on Military bases. Oil changes are about the same at any AmBest Truckstop. I wash it at Blue Beacon avg $50/wash. If I have it detailed 1 X a year that's about $300. Last year we went 13,000 miles and average Cost was $1.00/mi. I missed Insurance too. We have everything paid for and we have a Bass Boat so fishing costs money. We probably go through $100000 for everything but still own 10 head of cows, turkeys and chickens.