Buckshot1 8 #1 Posted August 22, 2016 My Grandson has a c-100. i was doing a little work to it and check the trans fluid, it looked a little milky. I am wondering what the replacement fluid is? It is a 6/8 speed. Thank you for your time and have a good day. Share this post Link to post Share on other sites
stevasaurus 22,883 #2 Posted August 22, 2016 You want to use 90wt. 80/140wt is OK. You may want to flush it out after you drain the milky oil. I like to use diesel fuel for that, but kerosene works equally as well. Run the diesel/kerosene in all gear for a total of about 20 minutes. Make sure you elevate the front end a little to get all the oil and flush out. 2 Share this post Link to post Share on other sites
Buckshot1 8 #3 Posted August 22, 2016 1 hour ago, stevasaurus said: You want to use 90wt. 80/140wt is OK. You may want to flush it out after you drain the milky oil. I like to use diesel fuel for that, but kerosene works equally as well. Run the diesel/kerosene in all gear for a total of about 20 minutes. Make sure you elevate the front end a little to get all the oil and flush out. Thank you, I was not sure if took the same as my 656. 1 Share this post Link to post Share on other sites