Boiling point: How much can your diesel auto trans handle?

I for one am happy to pay for the extra $$$ to have the Aisin and higher tow ratings and power.

In temps of around 100 my trans temps are in the mid 170's on long 6 percent or worse grades. The AISIN runs VERY cool, that will relate to long life.

I don't need to ruin my warranty with any type of TUNE since my combo does the job of pulling my 33-35K combined load with ZERO issues.