I don't remember the dip stick arrangement on the 3T but I use a little 12 volt oil sucker to "drain" all my ATV's through the dip stick opening. Handy and fast and get 99% of the oil out. Might work on the 3T. The little suckers are only about $20 on eBay. Auction 264792277272
ACMOC Member 25 years
D47U 1950 #10164
Cat 112 1949 #3U1457
Cat 40 Scraper #1W-5494