NO , your vehicle is designed to run on " regular " unleaded , 87 octane
No, no room.
Nothing. The Villager can run any normal ethanol-oxygenated gas up to 15% with no problem.
The only place available is the coolant reservoir.
Either the thermostat was not the problem, or you put it in backwards.
To disable the factory alarm on a 2000 Mercury Villager, put the key in the ignition and turn it halfway. Let it stay in the spot for 10 minutes and start the car.
Down same tube that holds trans dipstick.
Replacing a window motor in a 1999 Villager is quite easy. You will need to take the door panel off and unassembled the motor and put in the new motor.
Go to this link. It will answere alot of your questions.http://mysite.verizon.net/cshaines/villagerquest.htm
Just unclamp hoses, pull them off, and put a new one on.
newcougar.org
It is under the hood on the right hand side of the engine fire wall. there is a black cover over it. Once you have the cover removed, there is a selenoid diagram as to which on is which. Just pop out the old one and put in the new.
Engine oil goes in the oil cap which is right on the front of the engine and has a picture of an oil can on it.