Shifting much better when cold.
I noticed that when I first start up my truck when is it cold, below 40F, shifting into second gear an higher gears is effortless. Once the truck heats up this effortless shifting goes away. I imagine it has to do with the oil being cold.
If that's the case, is there something I could do, like put in a different oil to make it shift this way even once heated up?
"Slow down and smell the diesel"