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Trans oil help

rawbdiggity

New member
"i just bought a 89 correct cr

"i just bought a 89 correct craft 1.23/1 pcm it says on metal tag atf a which is dexron mercon but whats in the trans is oil looking oil and it is very clean i test drove it and it did not slip but its low on oil in trans. called a trans shop he sayed in 89 they ran sae 20w non detergent that i found is impossible to find ,so what do you think is in it? and can i use it, or or should i flush it and put dec/mer in it.thanks rob"
 
"I have the same tranny (8

"I have the same tranny (89 1:23/1) and it has always had motor oil in it.

I did not find out about straight weight 20 until after I had changed the trans oil a few times. It has treated me pretty good none the less. In other words, it's probably not such a big deal.

I use 5-30 castrol syntec in mine and it's very happy. However, the next time I change it I will TRY to install straight 20W oil. I'll special order some from Advance auto and be done with it.

Your other choice is to bite the bullet and change it to ATF. Not a big deal, just make sure that you do it several times to remove ALL the oil before you run the boat."
 
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