DIY: 4x Tranny Flush by Gil

[Uncle Schtanky]

Total stuff needed:
(1) Bottle of smart blend ( Black Bottle)
(I used Lube Guard from NAPA for $11.00)

(4) quarts of "F" type Trans fluid
(7) quarts of Dextron fluid
(4) quarts of Genuine Honda fluid

Time to play with your car.......

1. Drain the fluid and add 3.5 quarts of "F" type fluid. F-fluid (ATF) is what is used in Ford transmissions. It has a very high detergent base to it that is designed to clean the internal parts and to break down varnish build up.

2. Drive the car around for several miles and then drain it again . I do not recommend that you leave the F-type fluid in the car for an
extended time.

3. Now having drained the fluid refill the unit with 3.5 qt's of
Dextron II or III and again drive the car around for a few miles
working the Dextron in. While you are doing this what you are
actually doing is diluting the F-type fluid and flushing the dirty fluid
out of the converter at the same time.

4. Return to the driveway and dump the fluid again and

5. repeat the process again. (Steps 3-4)

6. Now , having returned once again , you have drained one last
time. At this point what little F-type fluid that was left has been
drastically diluted and the majority of what you have left is Dextron.

7. Now fill the tranny up with Genuine Honda ATF . Honda fluid has
a high silicone base to it and that is what will keep your tranny
shifting smooth. You now have 3.5 quarts of Honda fluid mixed in
with about 5qts of Dextron mixed with .5 qts of F type fluid (Mix) .
Not enough to hurt a thing. Now to even things out and bring us all
back to Basic Honda fluid , get a bottle of a product called "Smart
Blend" It's made by a company called "Life Products" Be sure to
get the Black bottle as it is specially designed to convert Dextron
over to Honda fluid, this is a product that we endorse, and use it in
all our transmissions through out the building process. If you can't
find it then try Lube Guard , and again use the Black bottle. Both
products have red bottles and I thin also a Blue one too?

8. Pour one full bottle of Smart Blend into the tranny and you're set. Smart blend reduces operating temps as well as is a friction modifier that will reduce clutch pack chatter as well as help with converter lock up. Now the reason you start with the F type fluid is to clean . Then you use Dextron to dilute the F-type (Ford) and besides to dump that much Honda fluid just to flush would be a
sin, not to mention costly as all get up.

[olsoncor]

for a complete flush, you can also grab a couple friends to help out. Have the car running, and pull the hose that returns tranny fluid to your radiator and drain into pan while one friend is shifting through the gears and another is constantly pooring more fluid into the fill hole. This is the BEST way to flush a transmission because it uses the cars fluid pump to cycle through all of the lubricant rather than using one of the those quick pressure cycles that jiffy lube uses. Uncle Schtanky's method works well too, it just requires more fluid and money, but is ideal if you are doing the change yourself.

[RdWing]

Sorry to bump a year old thread, but i had to comment.

Did this entire procedure today, my tranny was already in good condition and shifting quite smoothly but I did notice some good improvement.

Total cost was about $80.

Honda z1 atf $30
Dexron $20
Type F $12
Lubegard Black $8
+tax

[Markpti]

Originally Posted by Uncle Schtanky

Total stuff needed:
(1) Bottle of smart blend ( Black Bottle)
(I used Lube Guard from NAPA for $11.00)

(4) quarts of "F" type Trans fluid
(7) quarts of Dextron fluid
(4) quarts of Genuine Honda fluid

Time to play with your car.......

1. Drain the fluid and add 3.5 quarts of "F" type fluid. F-fluid (ATF) is what is used in Ford transmissions. It has a very high detergent base to it that is designed to clean the internal parts and to break down varnish build up.

2. Drive the car around for several miles and then drain it again . I do not recommend that you leave the F-type fluid in the car for an
extended time.

3. Now having drained the fluid refill the unit with 3.5 qt's of
Dextron II or III and again drive the car around for a few miles
working the Dextron in. While you are doing this what you are
actually doing is diluting the F-type fluid and flushing the dirty fluid
out of the converter at the same time.

4. Return to the driveway and dump the fluid again and

5. repeat the process again. (Steps 3-4)

6. Now , having returned once again , you have drained one last
time. At this point what little F-type fluid that was left has been
drastically diluted and the majority of what you have left is Dextron.

7. Now fill the tranny up with Genuine Honda ATF . Honda fluid has
a high silicone base to it and that is what will keep your tranny
shifting smooth. You now have 3.5 quarts of Honda fluid mixed in
with about 5qts of Dextron mixed with .5 qts of F type fluid (Mix) .
Not enough to hurt a thing. Now to even things out and bring us all
back to Basic Honda fluid , get a bottle of a product called "Smart
Blend" It's made by a company called "Life Products" Be sure to
get the Black bottle as it is specially designed to convert Dextron
over to Honda fluid, this is a product that we endorse, and use it in
all our transmissions through out the building process. If you can't
find it then try Lube Guard , and again use the Black bottle. Both
products have red bottles and I thin also a Blue one too?

8. Pour one full bottle of Smart Blend into the tranny and you're set. Smart blend reduces operating temps as well as is a friction modifier that will reduce clutch pack chatter as well as help with converter lock up. Now the reason you start with the F type fluid is to clean . Then you use Dextron to dilute the F-type (Ford) and besides to dump that much Honda fluid just to flush would be a
sin, not to mention costly as all get up.

Thank you so much for such good information.

[Markpti]

Originally Posted by RdWing

Sorry to bump a year old thread, but i had to comment.

Did this entire procedure today, my tranny was already in good condition and shifting quite smoothly but I did notice some good improvement.

Total cost was about $80.

Honda z1 atf $30
Dexron $20
Type F $12
Lubegard Black $8
+tax

Thank you also. Appreciate it.

[Markpti]

Originally Posted by olsoncor

for a complete flush, you can also grab a couple friends to help out. Have the car running, and pull the hose that returns tranny fluid to your radiator and drain into pan while one friend is shifting through the gears and another is constantly pooring more fluid into the fill hole. This is the BEST way to flush a transmission because it uses the cars fluid pump to cycle through all of the lubricant rather than using one of the those quick pressure cycles that jiffy lube uses. Uncle Schtanky's method works well too, it just requires more fluid and money, but is ideal if you are doing the change yourself.

Thanks for the tip.

[srqlegend]

This is good info. Following OG advice on other threads I don't use the new Honda transmission fluid but go with the Castrol Import ATF:
"Exceeds the requirements of the JASO-1A performance standard created by Japanese automobile manufacturers."

[JKLedbetter]

Originally Posted by srqlegend

This is good info. Following OG advice on other threads I don't use the new Honda transmission fluid but go with the Castrol Import ATF:
"Exceeds the requirements of the JASO-1A performance standard created by Japanese automobile manufacturers."

If by "new Honda transmission fluid" you mean DW-1, here's a thread that discusses how to still get the old Honda Z1:

http://forums.acuralegend.org/atf-z1...=idemitsu+type

-Kennon