F350 Super Duty vs 3500 Denali vs The Ike Pulling 30k lbs

The 2017 F450 ran up the Ike with 30,000 lbs in tow and didn't do much better than this 2020 Duramax. Does anyone remember if we discussed this run and if we came up with an excuse for why it didn't do better? About 11:30. I think the 2017 Powerstroke has fairly similar power ratings as the 2020 Duramax, 440 hp and 925 lbft. It was a little warmer out at 55F.

F450 with 30,000 lbs in tow