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04-08-2013, 08:33 PM #11
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- Mar 2007
- Grand Prairie, Texas
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04-09-2013, 07:24 AM #12
There are a lot of hydraulic systems that spec ATF if the temps are supposed to get really cold. This truck (read: transmission) won't even break 90*F if its really cold unless your running slow and the converter unlocks a lot. I've noted that it won't lock the converter until the trans reaches about 70*F.
Isn't Dex6 a thinner synthetic ATF when compared to Dex3? I'm probably going to do a pan drop when the time comes...not really sure what I'll use. I've already had to add to it (mystery fluid disappearance), and used Castrol Dex6. Probably hook up with the local Amsoil guy and see what he can do for me.
On a side note, I scored a new/unopened 5-gallon pail of Amsoil 75w140 SVO a few weeks back for $50...gotta love Craigslist.
04-09-2013, 08:31 AM #13
one thing I did notice with a very large cooler on my 1984 was in the winter the tranny cooler caused the engine to run too cool and I lost some heat out of the heater. I had to block 50% of the radiator to get my toes warmed up in the below 20 deg f temps.
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