AutomaticMack
New Member
Howdy y'all I know this is no RV, but it is an Allison. I have a HT750DRD in a 85' Mack it currently uses a Hayden air to oil cooler that measures 36x30x1.5 and cools about 100,000 to 164,000 BTU/HR and flowing about 15 GPM.
This air to oil cooler works fine in hot weather but in cold weather the trans never gets above 100 degrees working it very hard. I have a water to oil cooler from a Allison HD4060 Pierce fire truck it flows 20 GPM but I do not know what the BTU/HR is. It looks like it will work and is an easy hook up, but will it cool enough?
This air to oil cooler works fine in hot weather but in cold weather the trans never gets above 100 degrees working it very hard. I have a water to oil cooler from a Allison HD4060 Pierce fire truck it flows 20 GPM but I do not know what the BTU/HR is. It looks like it will work and is an easy hook up, but will it cool enough?