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PCM transmission oil

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dlutz View Drop Down
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    Posted: July-26-2009 at 6:28am
Posted in wrong forum- I'm a newbie, what can I say.
92 Supra Sunsport- PCM 1:23:1 transmission-want to change trans oil. Plate on transmission says                 SG 20 20 W motor oil (same as manual). Car Quest carries SAE 20 but not SAE 20 20w. It looks like the boat shop I purchased it from has used tranny fluid (pink/red).   What should I use?
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eric lavine View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote eric lavine Quote  Post ReplyReply Direct Link To This Post Posted: July-26-2009 at 10:29am
it was switched over to Dexron/Mercon which is what PCM recomended. stick with the Dex/Merc
"the things you own will start to own you"
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mtguy View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote mtguy Quote  Post ReplyReply Direct Link To This Post Posted: July-27-2009 at 4:50pm
Eric,
I'm guessing same answer for my question -'95 SN w/ GT-40 motor. 1:23:1 tranny. Dex/Mercon 20w for mine as well? Thanks in advance. ~Peter
'95 SN

'53 Hutchuck

'56 Essaness Craft
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TRBenj View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote TRBenj Quote  Post ReplyReply Direct Link To This Post Posted: July-27-2009 at 5:10pm
Originally posted by mtguy mtguy wrote:

Eric,
I'm guessing same answer for my question -'95 SN w/ GT-40 motor. 1:23:1 tranny. Dex/Mercon 20w for mine as well? Thanks in advance. ~Peter

You want Dex/Merc (or Dex III) ATF. Eric and I like Valvoline. Dont use synthetic. Avoid high mileage formulations if you can.

Only the very early production 1.23 boxes specified 20w oil.
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