Re: Spark Plugs

Posted by Owen_Dyneto On 2012/5/21 8:41:31

The ordinary AutoLite copper-core plugs (forget platinum and all that crap) are a very fine plug, very widely used in Packards. Most spark plug problems are the incorrect reach or the incorrect heat range; after that you'd be hard pressed to ever see a difference in performance between any of the major plug suppliers' products.

PS - If you want to use a Champion or AC, just take the current AutoLite recommendation which you already have and just have your local auto parts store cross reference to those or whatever other brand of your choice. Ignoring resistor plugs for the moment, all a spark plug is, is an , electrode, an air gap, an insulator and a ground; 99.9% of your ignition performance once you have the right plug is determined elsewhere in your ignition system.

And yes, I know others will have very strong opinions that one brand or another performs better in their engine.