04-04-13, 02:36 PM
Iridium plugs just last longer, so if your changing them at specs interval then not worth the extra dosh. but if your likely to let them run longer than that they do stay fresh for longer.
i tend to use them because i had an old ZX10 that ran rough as bugger and improved a huge amount with iridium plugs, swapped back to fresh std plugs and ran rough again.
now it clearly had an underlying problem but back then plugs were about as far as i ever went lol and if they made an improvement then they had to be better than normal ngk ones.
now i know better but i do still try when able to stick with the iridium plugs. even though i know they realy are not a wonder plug just a good plug.
i tend to use them because i had an old ZX10 that ran rough as bugger and improved a huge amount with iridium plugs, swapped back to fresh std plugs and ran rough again.
now it clearly had an underlying problem but back then plugs were about as far as i ever went lol and if they made an improvement then they had to be better than normal ngk ones.
now i know better but i do still try when able to stick with the iridium plugs. even though i know they realy are not a wonder plug just a good plug.
![[Image: 82304.png]](http://mefi.us/images/fuelly/smallsig-uk/82304.png)