Unleaded is choice. Manufacuters recommend a minimum octane rating of 87. In high altitude, 85 octane is acceptable.
Brake fluid
Yes, it is possible to put a 89 Ford Escort engine in a newer model of the Ford Escort. It is however important to note that all this needs some fabrication.
Magic Gas!
All you have to do is put it in gear and give it gas until it brakes loose. That's what i had to do with my 98 escort.
10-30 SM or SL rated oil.
Can a ford capri V6 3000 engine fit in a 1976 ford escort?
Headers can be obtained and put on a ZX2, but I know of no one who makes a header for the standard Escort.
The brake fluid in a 1992 Ford Escort gets put in the brake fluid reservoir. This is normally located on the master cylinder.
87 Octane unleaded.
NO
" regular " unleaded , 87 octane
regular unleaded - 87 octane