How to change spark plugs on olds achieva?

remove plugs one at a time and replace one at a time. Add a drop of anti seize to threads to prevent seizing to head. add some dielectric grease to electrical contacts prior to connecting.How to change spark plugs on olds achieva?
What year is it? If it is a newer one, you will probably have to remove a cover from the top of your motor. The cover is supposedly a shield, serves no purpose in my opinion. On my truck, I have to remove the fuel rail in the back since it is a v6 to get to the last 3. If it is older, all you need is a spark plug socket, a long connector and the Ratchet. When you install them though, only hand tight. Too much can strip out the threads in the motor.