no
Yes,Nissan went to f.i. in 1986,so 89 is f.i.
WHAT ARE"89-NISSAN MAXIMA RADIO WIRE COLOR CODES
15btdc
its the chassis code for 89-94 Nissan 240sx
Dextron 3
86-89
Does it have hub locks
5w30 0r 10w30
yes
near the end of the fuel line
DEXRON III or ATF4+ is good.