ATF or SAE 20W
Printed From: CorrectCraftFan.com
Category: Repairs and Maintenance
Forum Name: Boat Maintenance
Forum Discription: Discuss maintenance of your Correct Craft
URL: http://www.CorrectCraftFan.com/forum/forum_posts.asp?TID=24804
Printed Date: November-19-2024 at 9:35am
Topic: ATF or SAE 20W
Posted By: gugi55
Subject: ATF or SAE 20W
Date Posted: February-07-2012 at 1:07am
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I am restoring a 74 skier 16' with a 302 Ford. I am changing all the fluids and am trying to decide if I should go with ATF or 20W in the tranny. The 20 W will give it quieter operation and has better lubricating qualities but the ATF is what is recommended(we use 20W in outboard lower units). The ATF is not operating as a power transfer fluid and does not have the same lubricating qualities.
WHY ATF in the first palce .... and comments or words of wisdom! |
Replies:
Posted By: 8122pbrainard
Date Posted: February-07-2012 at 8:01am
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The ATF is basicaly a 20 weight and is easier to find. There's nothing wrong with using it and would be my first choice. All it's doing is providing hydraulic pressure to the clutch packs. Yes, it does lubricate as well but mostly in reverse when you are spinning the planetary gear set. ------------- /diaries/details.asp?ID=1622" rel="nofollow - 54 Atom /diaries/details.asp?ID=2179" rel="nofollow - 77 Tique 64 X55 Dunphy Keep it original, Pete < |
Posted By: eric lavine
Date Posted: February-08-2012 at 9:55am
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and atf is reccommended because it wont foam over 3000 rpms, no problem using motor oil in them in diesel applications ------------- "the things you own will start to own you" |
Posted By: eric lavine
Date Posted: February-08-2012 at 9:55am
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atf has anti-foaming agents added ------------- "the things you own will start to own you" |
Posted By: 8122pbrainard
Date Posted: February-08-2012 at 10:14am
Comparing a marine trans to a O/B or I/O lower unit is really a pour comparison. Totally diferent gearing plus, the HP going though the lower unit gears which are always on the small side is very demanding. A lower unit is a gear engineers nightmare!   ------------- /diaries/details.asp?ID=1622" rel="nofollow - 54 Atom /diaries/details.asp?ID=2179" rel="nofollow - 77 Tique 64 X55 Dunphy Keep it original, Pete < |
gugi55 wrote: