its that time of the year to change my spark plugs. i have a 01 f250 with a 5.4L and i just turned 200k on my truck. When i replaced the plugs last year i used double platinum plugs and they seem to work good. Lately i been hearing a lot of different things about the E3 spark plugs. i was wondering if anyone uses them or if they know how they perform in the 5.4L. I was thinking about trying them out but before i do i figure i ask out here. I always got good results asking questions on FTE before doing something to my truck or need help troubleshooting something. I hope i can get some input on the E3 plugs from all you guys out here. Thanks in advance