Synthetic trans fluid
10-07-2004 | 11:51 AM
#11
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From: :texas:
Originally Posted by MacADaYear
Ill follow what the book says on that. It just like the eaton rears, sure some people are using synth, but it specifically says DO NOT use synth. Maybe you might free up some ponies here and there, but what is it going to cost you in the long run?
A Dexron/Mercon transmission fluid is a Dexron/Mercon transmission fluid no matter what base stock you use to make it.
As for Eaton not recommending synthetic gear oil.
That is because they never tested any and it's easer for them to say don't use it then run test on any.
I have offered then synthetic gear oil to test and was told just that.
Base stocks don't do much in an oil it's the additives that do the work.
Think of it like baking a cake.
The flower is the base and it's what you put in it that makes the cake.
Just because you use a different flower does not mean the cake will taste different.
10-07-2004 | 11:57 AM
#13
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From: Cali
Originally Posted by 2redgmc
As for Eaton not recommending synthetic gear oil.
That is because they never tested any and it's easer for them to say don't use it then run test on any.
I have offered then synthetic gear oil to test and was told just that.
That is because they never tested any and it's easer for them to say don't use it then run test on any.
I have offered then synthetic gear oil to test and was told just that.
10-07-2004 | 12:45 PM
#14
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From: Ohio
Originally Posted by 2redgmc
Synthetic fluids dissipate heat better than mineral oils. So the transmission is going to run cooler not hotter.
Not so, this is a false rumor. In theory they can cause tranny to run slightly cooler because of reduced internal friction from internal parts and oil shearing but no because it cools better or absorbs more heat.
10-07-2004 | 01:26 PM
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From: :texas:
Originally Posted by MacADaYear
If its because they never tested it with synth, why does it say in big letter specifically DO NOT USE SYNTHETIC. I mean if they just didnt know, wouldnt they just not say anything? Seems pretty specific to me...
It's easer for them to say don't use it.
10-07-2004 | 01:32 PM
#17
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From: :texas:
Originally Posted by snoman
Not so, this is a false rumor. In theory they can cause tranny to run slightly cooler because of reduced internal friction from internal parts and oil shearing but no because it cools better or absorbs more heat.
Just to let everyone know I have a trans temp gage on my truck and when I changed from the factory fill to synthetic ATF I dropped 10 degrees from 195 in stop and go traffic to 185.
10-07-2004 | 01:34 PM
#18
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From: :texas:
Originally Posted by MacADaYear
Than to do some testing and supposidly find out it can make more HP and last longer? Hmmm.... doubtful but who knows.... 
It's my job.