spark plugs change: SAAB 9-5 sedan 2.3T Aero
I just purchased a pre-owned SAAB 9-5 sedan with the 2.3L Turbo Aero with automatic trans. I noticed that SAAB recommends changing the spark plugs every 40 K miles. I Have not purchased any manuals yet, and I'm trying to see if there is any online advice about doing my own maintenance on the car.
I purchased (4) NGK-PFR6H-10 spark plugs. Does anyone have any advice on replacing the plugs: gap width, special tools, etc.