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What's the difference between Mercon and Mercon V transmission fluid?

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Old 01-07-2012, 12:29 PM   #1
speleopower
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Question What's the difference between Mercon and Mercon V transmission fluid?

Recently I did a trans fluid change along with a new filter.
I've been changing the trans fluid every summer for quite a few years.
Immediately after changing the fluid this time my van started coming out of drive for a couple seconds. The engine will rev up if I give it gas like it is in neutral. A second later the transmission catches and away I go. This only happens one time after starting up and driving in the morning when the van is cold. It can happen again after the van sits all day at work.

What I just realized it I have a 1997 with and automatic transmission and it is supposed to get Mercon V. I checked the ATF fluid bottles I got and I was sold Mercon not Mercon V.

What is the difference between Mercon and Mercon V. I'm planning on draining my transmission and replacing it with Mercon V tomorrow.

Thanks-Scott
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Old 01-07-2012, 08:18 PM   #2
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You could add a friction modifier instead of draining the fluid. Lubegard makes one for this purpose. You could keep the fluid in there with the additive, but in the future always remember to use Mercon V ATF.
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Old 01-08-2012, 08:56 AM   #3
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Ok thanks. In super simple terms Mercon is more slippy than Mercon V.
I changed out the trans oil/filter yesterday to Mercon V.
Hopefully it wont' slip out of gear anymore.
-Scott
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Old 01-08-2012, 09:20 AM   #4
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mercon is real trans fluid,

mercon v is synthetic,,

it calls for synthetic as it has the lubricity and friction qualities required by the auto trans ,,
like slipping or gripping clutches,,




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