OK, so I'm just cruising along on I-70 east of Terre Haute, Indiana. Got a car on the trailer and running about 65 mph. With 4.63 gears in the ole Super Duty I'm running with traffic (kinda) and conserving fuel. Look in the mirror and lo and behold here comes an old rusty Cummins Dodge. I also own one of these and know what they are. He is pulling a trailer with 2 zero turn mowers and assorted other lawncare stuff. As he is getting closer we are coming into a grade, I back off a little and here he comes! I let him get slightly ahead then just speed up and go by.....I do this twice. His 3.55 gearing does not compare to my 4.63. I have more hp so playing with him was easy. Got over the hill and he blew on by. Evidently he hit one of those craters in the right lane that they repaired last summer because I passed him on the shoulder with a weed eater hanging off the trailer. Had to laugh.