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transmisson confusion |
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benrankin33 
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Joined: March-20-2010 Location: tallahassee Status: Offline Points: 43 |
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 Topic: transmisson confusionPosted: March-20-2010 at 5:46pm |
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I have a 1990 nautique w/pcm trans. The fluid is not red, and the id tag says sae 20-20 w engine oil grade sf/cd. Is this the proper oil/fluid to use? Also this is my first nautique.
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WakeSlayer
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Joined: March-15-2006 Location: United States Status: Offline Points: 2138 |
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Posted: March-20-2010 at 5:50pm |
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My 90 was also oil, not trans fluid. I was always told use what it came with.
I believe a couple people have converted, though. I am not sure of the process to do so. |
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Mike N
1968 Mustang |
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benrankin33
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Joined: March-20-2010 Location: tallahassee Status: Offline Points: 43 |
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Posted: March-20-2010 at 5:55pm |
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Thank you very much,I may have more Q,s in the future.
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TRBenj
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Joined: June-29-2005 Location: NWCT Status: Offline Points: 21185 |
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Posted: March-20-2010 at 5:55pm |
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Straight 20w oil is the original fluid specified for the early 1.23's. Its ok to convert to ATF... stick with conventional Dex/Merc or Dex III (do NOT use synthetic). It will take a few flushes to get it completely swapped out, but no worries- the fluids are compatible according to Eric. Judging by the condition of my '90's tranny when I disassembled it (1200 hrs) Id say it was ok to keep running the 20w if you want... if you can find some!
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benrankin33
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Posted: March-20-2010 at 5:58pm |
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Finding is right.So its ok to switch to dextron 3.
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eric lavine
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Joined: August-13-2006 Location: United States Status: Offline Points: 13413 |
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Posted: March-20-2010 at 9:09pm |
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yes, or brake fluid...sorry Pete times are tough. lol dont use brake fluid, dexron mercon compatible is fine, fill to the top and flush at op temp
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"the things you own will start to own you"
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benrankin33
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Posted: March-21-2010 at 1:36pm |
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When you say fill to the top, do mean completly full, then @operating temp. flush? If so how many qts. will I need?
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eric lavine
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Posted: March-21-2010 at 3:27pm |
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yes to the top to flush, this will dilute the 20 wt that much easier, maybe 8 qts?
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"the things you own will start to own you"
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benrankin33
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Posted: March-21-2010 at 3:41pm |
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Thank you very much,I am very glad to be a part of this site,everyone has been great.Do you have any sugg. on a four blade prop for my 1990 nautigue,also noticed some slop in shaft when I removed the prop nut,time for new bushings? Anybody have some advice on this, thanx very much?
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