Spark Plug question

[Level2]

I know everyone on here swears by the Motorcraft double platinum plugs but I was just wondering if anyone had tried or heard anything on the E3 Diamond fire spark plugs. Just seems to me that there has to be a better plug than the OEM units. What about iridium plugs?

 

[Bob Ayers]

Sure isn't! Don't throw your money away, with the Motorcraft double platinums (or finewire platinums) you get the correct heat range, and they will last the longest!