2000 pontiac sunfire gt 2.4L? I went to the car parts store and hetold me what i needed and i forgot and cant go back now. Is there a way to check online what the factory spark plugs in my car were? its a 2000 sunfire gt with a 2.4L engine. i heard it was ac delco brand or something. The plugs in it now are not the factory ones its a used car. Also can i put any different kind of plugs in it? because i dont see how some are a lot cheaper then others.