FordService Report post Posted August 18, 2015 ...Our Ford Rep is asking her sources, maybe we'll get their answer soon... Hi guys, I just heard back from my sources. As that information is proprietary, I'm unable to provide it. It's recommended that you use the same as what was originally equipped, unless a TSB/FSA updated it, which your dealer would be able to determine. Meagan 1 GrySql reacted to this Quote Share this post Link to post Share on other sites
ptjones Report post Posted August 18, 2015 Hi guys, I just heard back from my sources. As that information is proprietary, I'm unable to provide it. It's recommended that you use the same as what was originally equipped, unless a TSB/FSA updated it, which your dealer would be able to determine. MeaganOuch! I guess we are out on our own on this one. ;) Could talk to other replacement Spark Plug Mfr to get answer. :) Paul Quote Share this post Link to post Share on other sites
GrySql Report post Posted August 18, 2015 (edited) Hi guys, I just heard back from my sources. As that information is proprietary, I'm unable to provide it. It's recommended that you use the same as what was originally equipped, unless a TSB/FSA updated it, which your dealer would be able to determine. MeaganThanks Meagan... Not your fault but that answer doesn't make sense because when you go to OEM Motorcraft Parts and look up the spark plug for the 2013 (that came with SP-531's) it lists SP-530's as the replacement. There is no TSB or FSA that corrects this confusion and we have given it a hard look. In addition, I just called my Dealer and asked the Parts Dept what spark plugs go in my 2013 FFH, I was told SP-530 were the replacement part spark plugs, not the same that originally came with the car. At this point, I am confident that Ford wants the 2013 FFH's to be equipped with SP-530 spark plugs, not what was installed at the factory in 2012.All the later M/Y FFH's came with SP-530's too. I am glad I changed mine to the correct spark plug. You folks with early FFH's that have the SP-531 spark plugs installed might give this some thought. YMMV, and it might be in a good way. Edit: I bought mine at AutoZone for $7.99 plus tax. Edited August 18, 2015 by GrySql 2 gkinla and ptjones reacted to this Quote Share this post Link to post Share on other sites
GrySql Report post Posted August 18, 2015 Ouch! I guess we are out on our own on this one. ;) Could talk to other replacement Spark Plug Mfr to get answer. :) PaulBTW Paul, according to the Motorcraft OEM Parts Catalog your C-Max replacement spark plugs are SP-530 too. You are running the wrong plugs. Quote Share this post Link to post Share on other sites
GrySql Report post Posted August 18, 2015 Does this help? Information from an older book (2004/05). SP-530 (AYFS32YR, AYSF32YPC) from Rock Auto siteSP-531 (CYFS12YPC5) from Rock Auto site Hopefully it shows up JeffHow did I miss this? Thanks Jeff, that is a great chart!I was preoccupied with my vacation duties and Hybrider was right, my Flux Capacitor must have been out of alignment. 1 jeffo65 reacted to this Quote Share this post Link to post Share on other sites
ptjones Report post Posted August 19, 2015 BTW Paul, according to the Motorcraft OEM Parts Catalog your C-Max replacement spark plugs are SP-530 too. You are running the wrong plugs.Haven't changed the plugs, still getting great MPG's. :) Paul Quote Share this post Link to post Share on other sites
GrySql Report post Posted August 19, 2015 Haven't changed the plugsYeah, but I bet I got you thinking about it... :) 1 Hybrider reacted to this Quote Share this post Link to post Share on other sites
ptjones Report post Posted August 19, 2015 Yeah, but I bet I got you thinking about it... :) Yeah, because you brought it up. LOL Maybe this Winter or when MPG's go down or ICE starts to run ruff. :shift: :) Paul Quote Share this post Link to post Share on other sites
