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Old 02-26-2012, 07:37 AM
 
792 posts, read 2,495,680 times
Reputation: 874

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I'm changing the transmission fluid. Warnings about a flush are all over the place, so I'm going for a 3x drain and fill.

Then I got to thinking...
  • Do all three drain and fills in a day, with ten miles between each, or do one each weekend?
  • Drop the pan and change the filter at the first drain and fill, or wait until the last one?
  • Install an in-line transmission filter in the return line, or the OEM screen filter is really all you need?

Does any of this stuff matter? Experience with the in-line filters?

Current fluid is still red. Shifts are good while driving. 1998 Nissan Altima, 173,000. Thanks, everybody.
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Old 02-26-2012, 08:06 AM
 
Location: South Jersey
7,780 posts, read 19,582,628 times
Reputation: 2332
Id change the filter first and the fluid once. If you have a few hours, id do the 3 changes a day but be warned, the fluid will be pretty hot by the third change. no need for an in line filter.


Quote:
Originally Posted by JBPisgah View Post
I'm changing the transmission fluid. Warnings about a flush are all over the place, so I'm going for a 3x drain and fill.

Then I got to thinking...
  • Do all three drain and fills in a day, with ten miles between each, or do one each weekend?
  • Drop the pan and change the filter at the first drain and fill, or wait until the last one?
  • Install an in-line transmission filter in the return line, or the OEM screen filter is really all you need?

Does any of this stuff matter? Experience with the in-line filters?

Current fluid is still red. Shifts are good while driving. 1998 Nissan Altima, 173,000. Thanks, everybody.
Rate this post positively Quick reply to this message
 
Old 02-26-2012, 07:18 PM
 
Location: My little patch of Earth
6,193 posts, read 4,874,814 times
Reputation: 3048
Quote:
Originally Posted by JBPisgah View Post
I'm changing the transmission fluid. Warnings about a flush are all over the place, so I'm going for a 3x drain and fill.

Then I got to thinking...
  • Do all three drain and fills in a day, with ten miles between each, or do one each weekend?
  • Drop the pan and change the filter at the first drain and fill, or wait until the last one?
  • Install an in-line transmission filter in the return line, or the OEM screen filter is really all you need?

Does any of this stuff matter? Experience with the in-line filters?

Current fluid is still red. Shifts are good while driving. 1998 Nissan Altima, 173,000. Thanks, everybody.
Whatever for?

It's been said that a high mileage ATF flush/fluid change can possibly generate transmission issues.

Doing a fluid/filter change on regular intervals is considered better for the transmission.
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Old 02-26-2012, 07:39 PM
 
Location: Columbia, California
6,664 posts, read 27,935,442 times
Reputation: 5127
Quote:
Originally Posted by JBPisgah View Post
I'm changing the transmission fluid. Warnings about a flush are all over the place, so I'm going for a 3x drain and fill.
Yeah, make sure you tell any one buying your car in the future you cheaped out on the flush. 80% of the fluid is in the torque converter. With regular on schedule maintenance a engine and transmission will go 300,000 miles these days. Shade tree cars much much less so.
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