I am due to change the upper bank of spark plugs in my '09 Ram with the 4.7 liter. I have checked out the local auto parts stores and dont really trust them. Something is up with selection, they seem to list hundreds of spark plugs for my engine and I know that isn't right.
So, What kind of spark plugs do you guy run? Or what kind have you put in your 4.7? My local dealer says he only has 7 in stock but will order more in. Said he didn't realize they were that low.