Discussion Starter · #1 ·
I recently changed the filter and fluid in my '89 RC's transmission. To my horror, I just discovered (almost 1000 miles later) that I didn't use Dexron III, but rather, I seem to have inadvertently put in "ATF+III". I believe the reason this happened is because the label on the this AFT reads "For Chrysler Transmissions", and this threw me off. My question...should I immediately drain the tranny and put in Dexron III? Will harm come to the beastie if I leave the AFT+III in there? There seems to have been no degredation in performance, and the trany functions normally with the +III in there.