What is cooled with an intercooler?
Transmission fluid? If so, why not just change the fluid way more frequently - like every oil change. I use a one-gallon glass jug and flexible tubing to suck about 6 quarts of transmission fluid out via the dip-stick tube. Every time I change out 6 quarts, the transmission acts smoother even if it wasn't acting up before.
Engine oil? If it's getting that hot, I go to running 20W-50 or straight 40wt for the added protection it would provide under heated conditions.
You can buy a LOT of fresh oil or transmission fluid for $1000 and be better off for using it.
Regards, Gary in Sandy Eggo