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#1
02-05-2011, 04:13 PM
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Dextron Mercon III
I put about half a quart on DEX/MERC transfluid into my transmission.
Will it hurt it?
__________________
Hey! I'm not considered an enthusiast anymore........ 2010 Toyota FJ Cruiser Trail Team Edition 2000 Mitsu Montero Sport (Trade In) 1987 944 N/A 1976 Buick Century (SCRAPED) 1979 Yamaha XS1100 I have a parking problem everywhere I go... 2004 Pontiac Gran Prix . . I don't care. 1993 Mustang LX . . . . . I don't care.. 1996 Honda Civic CX. . . . . I don't care, well, maybe a just little... I can't afford to love her anymore! 
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#2
02-05-2011, 06:15 PM
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Re: Dextron Mercon III
Put it in what?? I don't see what year and all that stuff. That little bit probably wont hurt it but you might want to think about tossing in a bit of Lucas or Lubegaurd or something of the sort just for insurance. It's usually a good idea in these things anyways, in my opinion.
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#3
02-07-2011, 08:48 AM
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Re: Dextron Mercon III
Its a 2004 voyager. I agree, the small quantity probably has minimal impact, but I thought I should ask. Good suggestion about the lucas.
__________________
Hey! I'm not considered an enthusiast anymore........ 2010 Toyota FJ Cruiser Trail Team Edition 2000 Mitsu Montero Sport (Trade In) 1987 944 N/A 1976 Buick Century (SCRAPED) 1979 Yamaha XS1100 I have a parking problem everywhere I go... 2004 Pontiac Gran Prix . . I don't care. 1993 Mustang LX . . . . . I don't care.. 1996 Honda Civic CX. . . . . I don't care, well, maybe a just little... I can't afford to love her anymore!
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#4
02-07-2011, 10:38 AM
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Re: Dextron Mercon III
Your transmission holds in the neighborhood of 9 quarts of fluid. I agree 1/2 quart won't make much difference. I'm not an additive advocate. At most I would schedule the next fluid/filter change a tad early - maybe at 3/4 the recommended interval.
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**We took the time to answer your post. Please give us some time and post the fix. It will help hundreds. **Follow prescribed safety practices before attempting any procedures. Doubts? Consult a maintenance manual. 07 Fusion / 06 RAV4 / 06 Accord / 96 Gr Caravan
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#5
05-02-2011, 08:22 PM
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Re: Dextron Mercon III
The Dextron Mercon III will ruin the tranny, even for adding a small amount. The fluid is incompatible with the ATF+4. Lubegard is to be used if ATF+3 is your only other option.
The chemistry makeup of the DM-III will cause wear and clogging issues with the tranny. A chemical reaction in the tranny will be when the white foam gets so bad, it leaks out of the tranny dip stick tube.
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71 Duster 340, 74 T&C 440-Interceptor, 74 Duster /6 225, 76 Aspen /6 225, 79 Volare S/6 225, 81 Pacer I6 258, 88 Colt I4, 85 Caravan 2.6L, 94 Caravan 3.0L, 96 Caravan 3.3L, 00 Ram Van B1500 3.9L, 01 Ram Van B2500 5.2L, 05 Caravan SXT 3.8L
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#6
05-02-2011, 11:32 PM
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Re: Dextron Mercon III
Yes, I read that all the time but I'm not as hard over on it as I once was after reading a post from a guy who had Mercon in his 41TE for 3 years without a hickup. He wondered if he should change to ATF+4. Never heard what he finally did. Still not an advocate for using a full fill of anything but ATF+4.
__________________
**We took the time to answer your post. Please give us some time and post the fix. It will help hundreds. **Follow prescribed safety practices before attempting any procedures. Doubts? Consult a maintenance manual. 07 Fusion / 06 RAV4 / 06 Accord / 96 Gr Caravan
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