AHS 1,411 #1 Posted November 12, 2019 Its got 1” axles, I don’t know if that makes a difference... it has water in it. And with what? 80W90? 80W140? Share this post Link to post Share on other sites
JCM 8,645 #2 Posted November 12, 2019 My 1989 312-8 has 1'' axles and the correct oil is SAE 90 API Service GL-5 2 qt Capacity according to the original owners manual. 1 1 Share this post Link to post Share on other sites
AHS 1,411 #3 Posted November 12, 2019 SAE 90- like gear oil? I’ve done it once before.. years ago! Owner Manuel.... never heard of one!😄 1 1 Share this post Link to post Share on other sites
The Tuul Crib 7,332 #4 Posted November 13, 2019 You will want to flush it out with diesel fuel. What you need to do is lift the front end of the tractor up safely as high as you can and drain out what is in it. Then fill it up with diesel fuel run it around the yard a few times and drain it out again the same way. Do this until it comes out clear. Once you drain the last bit of it out add 2 quarts of 90 weight gear oil ! 2 2 Share this post Link to post Share on other sites
peter lena 8,050 #5 Posted November 13, 2019 don,t forget to replace the shiftier boot , probably the cause of the water , pete 4 1 Share this post Link to post Share on other sites
ebinmaine 63,087 #6 Posted November 13, 2019 We use Wally world straight 90 oil. Definitely want to follow all the above advice. @The Tool Crib Randy has a great idea with flushing... 4 Share this post Link to post Share on other sites
AHS 1,411 #7 Posted November 13, 2019 9 hours ago, peter lena said: don,t forget to replace the shiftier boot , probably the cause of the water , pete Ya, I’ve replaced the shifter boot once... I cannot remember when! Guess it time for another!👍 2 Share this post Link to post Share on other sites
Lee1977 6,214 #8 Posted November 24, 2019 The side plug has to be in place to get 2 quarts in the transmission. Share this post Link to post Share on other sites
