Re: What Plug wires for MSD:accel vs Splitfire vs
Although I've personally had great success with the platinum Bosch line as far as longevity and reliability, there seems to be some question about the propriety of the heat range that these plugs carry by design. If you notice the insulator on the standard Bosch plat ....it's substantial.
What is in question is whether you are not doing good things for your engine in using these plugs ..in spite of them doing a great job. I'm still using PLUS 4 and PLUS 2 in my wife's TJ and my Caravan ...but I may switch to something more conventional on the next round.
RRich has some insight into this ...and causes us to ponder the wisdom of platinum.