This question totally depends on what kind of spark plugs you have in there in the first place. I personally have high end spark plugs which don't need to be changed for 75,000 miles. Unless you see...
It is a good idea to check the gap of the plug (the area that the spark jumps across). The correct gap can be found on a sticker under the hood..
Answer.
Are you serious? Alright then... buy all the...
This is a wide open question, but in general terms one at a time. Take the old one off, and match it up with one of the new ones. inspect it to make sure its the same length as the old one, and it...