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Old Apr 22, 2005 | 05:21 PM
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dozer384's Avatar
dozer384
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what transmission?

i have a 2000 f250 4x4 with 7.3 auto trans. do i have a 4r100 or a e4od transmission? what trans fluid do i use? on the dipstick it says to use mercon fluid but auto parts store tell me to use mercon v. in the owners manual it says not to mix these two fluids, they are not compatible.
 
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Old Apr 22, 2005 | 07:19 PM
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From: STEPHENVILLE,TX!!!!!
4r100, check your owners manual i belive its regular mercon. ill have to look at my wifes truck to confirm fluid but i know its a 4r100, wouldnt have bought a e4od
 
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Old Apr 23, 2005 | 03:23 AM
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Originally Posted by dozer384
i have a 2000 f250 4x4 with 7.3 auto trans. do i have a 4r100 or a e4od transmission? what trans fluid do i use? on the dipstick it says to use mercon fluid but auto parts store tell me to use mercon v. in the owners manual it says not to mix these two fluids, they are not compatible.
It doesn't matter. I have had both and they use Mercon/DEXIII fluid. The Ford techs here said not to use sythetic in either one. Mercon V will fry your transmission. I have always used straight Mercon and have had no trouble with either tranny and I pull a TT.

Frank
 
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Old Apr 24, 2005 | 07:11 AM
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Missouguy, next time the Ford techs tell you not to use the synthetic, you might let them know that all of the oil fluids that Ford has are synthetic. They might even try to argue with you about this, LOL; they will see on the bottles Ford puts the stuff in though.
 
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Old Apr 24, 2005 | 09:30 AM
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Casey
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Originally Posted by Rowdyone
Missouguy, next time the Ford techs tell you not to use the synthetic, you might let them know that all of the oil fluids that Ford has are synthetic.
The MERCON that Ford installs at the factory is not synthetic. The MERCON V that they install at the factory in other transmissions is a synthetic blend. The MERCON SP that is used only in the TorqShift is synthetic.

You can use any fluid, synthetic or not, as long as it has the correct rating. For the 4R100 that's MERCON. I use Mobil 1 synthetic ATF. It has a MERCON, but not MERCON V rating, and is exactly what my 4R100 needs.
 
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