best spark plugs for f150

views 978 replies 30 following 17


  • severedmikey over a year ago
    im gonna get new spark plugs and it seems kinda important that i get good ones.  its a 4.6 v8.  what does anyone recommend?



  • corey0814 over a year ago
    Edited: 1/13/2009 7:00:40 PM by corey0814

    someone advised me to use the iridium's for my corolla (daily) because they'll up your mpg like crazy & i thought they were full of it, but auto zone owed me $25 in store credit, so i thought "what the hell?"  i used them & honest to god, i got 5-6 mpg difference.  they're about $8 ea, but eventually they'll pay for themselves.  i put a set in all of my vehicles!  motorcraft does make the iridum for fords too...  


  • groundedbigbody over a year ago




    use the motorcraft ones from ford there better than all the aftermarket ones out there



  • bagtodrag over a year ago
    use the factory motorcraft plugs, everything as far as aftermarket plugs and wires are basically junk when it comes to our trucks.


  • 97hrdbdy over a year ago




    no autolite, just motorcraft




Back to Top