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Transmission fluid question

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KENO View Drop Down
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    Posted: July-05-2020 at 2:37pm
Originally posted by Andrewkelly1983 Andrewkelly1983 wrote:

Good morning! 1990 ski nautique.. running great with new steering cable thanks to help and advice on here!
Old owners of my boat live on our lake and I talked to them about some Genera maintenance tips this weekend.
It’s been a while since they changed the transmission fluid . I checked the level and it looks a little low. The transmission says use 20-20w oil . Should I try to find some and just add a little and wait until
End of season to change.. or change it all out now?
Saw some other posts saying you can also use ATF which I have on hand.. can I add that to top off the oil level?
Thanks in advance


You should probably click on the link below and then click on the link in the 3rd post down in that thread for some good info on tubes to use when sucking it out.

link

As far as the fluid goes, see what's in it now. Maybe there's ATF, maybe there's 20w engine oil. ATF has that distinctive Red color, engine oil more clearish brown.

If it's got engine oil and been running good on it for the past 30 years, why change now. stick with what you have.and use engine oil. If it's ATF in there , then use ATF.

Also why do half a change? pump it all out and replace it all

And no fair mixing ATF and engine oil
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Jonny Quest View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Jonny Quest Quote  Post ReplyReply Direct Link To This Post Posted: July-05-2020 at 2:09pm
Small copper tubing is best. Get a size / diameter to fit inside the fluid evacuation hose.

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Andrewkelly1983 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Andrewkelly1983 Quote  Post ReplyReply Direct Link To This Post Posted: July-05-2020 at 2:03pm
Based off that should I use a small diameter line .. like an aquarium bubbler size?
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Jonny Quest View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Jonny Quest Quote  Post ReplyReply Direct Link To This Post Posted: July-05-2020 at 1:03pm
2 quarts capacity. Dextron III. Use a vacuum fluids extractor. Just don’t get the hose caught and stuck. You should be able to suck out 2 quarts. Replace what you removed.

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2003 Ski Nautique 206 Limited

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2001 Ski Nautique Open Bow
1994 Ski Nautique Open Bow

Aqua skiing, ergo sum
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 8122pbrainard Quote  Post ReplyReply Direct Link To This Post Posted: July-05-2020 at 12:52pm
Dexron Mercon. non synthetic is fine.


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Andrewkelly1983 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Andrewkelly1983 Quote  Post ReplyReply Direct Link To This Post Posted: July-05-2020 at 12:41pm
Good morning! 1990 ski nautique.. running great with new steering cable thanks to help and advice on here!
Old owners of my boat live on our lake and I talked to them about some Genera maintenance tips this weekend.
It’s been a while since they changed the transmission fluid . I checked the level and it looks a little low. The transmission says use 20-20w oil . Should I try to find some and just add a little and wait until
End of season to change.. or change it all out now?
Saw some other posts saying you can also use ATF which I have on hand.. can I add that to top off the oil level?
Thanks in advance
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