I have a 1995 volvo 850 turbo. My axel boot on the driver side burst so I changed it. Of course a good amount of trany fluid came out. It seems a little discolor, no unusual smell. I want to change the fluid. The manual calls for Dextron II(E). Can I and is it better to put ATF+4 instead of Dextron II(E)? I cant seem to find it anywhere. If not, what can I use. The owner said he put synthetic in it but it don`t seem like it has been changed recently. The car drive very good, I love it, but the trany is so delicate. So can I use ATF+4 or what can I use ?