Originally Posted by s346k

just curious but do you have any proof of this? I have logged both methods on big stall automatic cars and stock stall automatic (lsx) cars and the cooler alone was 15-20* under vs in line with the radiator, at full operating temp, especially in traffic.

I have logged both, on the street, at the dragstrip, idling, cruising etc just to see if there was a difference. my thought is that the radiator would actually heat the fluid and keep it warmer than an external cooler. this was the case on the other 2 vehicles, I was simply applying these findings to my jeep.

I used hptuners and realtime datalogging to monitor the lsex cars. I haven't done anything of the like on this jeep...only because dodge can't release a computer capable of being tuned properly and I refuse to pay full tune capability prices for just a datalogger.

not to mention I blew the trans cooler portion of the rad out with air and got very little fluid, which tells me the cooling capability of the radiator is very minimal.

Originally Posted by s346k

on my jeep anyhow

top line on jeep was bottom line on rad

but someone had already messed with it and had a gom of hoses and lines all rigged up. no wonder it was leaking. which surprises me bc it was a state owned vehicle.