Originally Posted by Silver Threads
My concern is if it is running 180-200 not towing, then what is it going to do when I am towing?
Sounds like you've done everything else; deep pan, external cooler, electric fan. Why not go with synthetic? If you believe the advertising it will lower tranny temp. I think it does/did but since I didn't have the temp gage installed prior to the switch over I can't say for sure. It's certainly better at withstanding high temperature. However you ultimately want to avoid that condition as it's going to be hard on the seals, bands, and clutches not to mention your sanity
I'm surprised your transmission runs that hot under normal driving conditions
Others have pointed to the Sub as being a bit lacking in cooling by design. I thought that from the firewall forward they were the same as the pick-up trucks
Anyway, it's all about margins. You want to be able to know that if you get stuck in traffic when it's 95 degrees out you're not going to have a melt down.
It's pretty hard to compare numbers with people since sensor placement has such a big impact and who knows how accurately the gages are calibrated.
I'm wondering what type of cooler you added. The plate type are supposed to be more efficient than the tube and fin. Then there's all different sizes of plate coolers. Some of the plate cooler manufacturers advertise the design as a passive bypass where the full flow through the cooler is inhibited until the ATF reaches a certain temperature.
PS. Tammy's curtains look great. I hope to get to that point on the "2do" list sometime in this life!