well after chemo treatment we headed up to Oregon coast, Bandon. came up i5 over mountains. wow, long haul up. outside temp was 105-110 new 2015 Ram 3500 diesel 2001 30ft Cardinal 12,100 ...
Yeah those trans temps are very nice for that load/grade/and ambient temps! A good rule of thumb is if you can run less than ambient temps plus 90-100* pulling a load your doing great!