Re: Best spark plug?
every one has got high milage plugs out now, some of them are very expensive(opti plugs are $25+ each). All these plugs work great as long as the engine is in proper tune, gas foul a premium plug and you'll never get it to fire correctly again, some engineer earned his money making sure these plugs would foul under the wrong conditions. I still run regular plugs unless there is no alternate to the premium plug, I can buy 8 regular plugs for what soome premium plugs cost apiece
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