I have a 2000 F-150 Bi-Fuel does anybody know which brand and type of spark plugs work best? Thanks
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F-150 Bifuel Spark Plugs
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Re: F-150 Bifuel Spark Plugs
Interesting note on spark plugs...
I had a surplus tow tractor I bought with the Ford 300 c.i straight six. I replaced the plugs and it was running rough and would miss. A parts counter person at I don't know where told me to use a cheaper plug, that is copper instead of platinum. I changed and it ran better. As I understand it, plain old copper fires easier than platinum or irridium, but won't last as long. From what I have studied about spark plugs, longer life is the only advantage of the pricier plugs. Also, the multi electrode plugs fire no better than single electrode as the spark is going to jump to the least resistant point.
I am not claiming this to be fact, it is what I read while trying to decide on plugs. Also, trying to get unbiased information from seriously knowledgeable folks can be confusing. I have also heard about staying away from Champion plugs from several knowleable people, though.
I think plugs could be a very good point on this forum as the CNG is harder to fire than gasoline. A weak system could fire gas, but struggle with CNG. I read that in one of Ford's CNG service manual supplements for troubleshooting the factory CNG system.
But plugs in these systems are a very good issue to bring up.
Max
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Re: F-150 Bifuel Spark Plugs
The multi-prong plugs will hold the gap longer than single because each one gets fewer sparks jumping to it. The sparks wear down the prong material widening the gaps and changing the spark characteristics. The coils on bifuel f150's are very labor intensive to change but fairly easy once you get down to them after removing the cng system components. If you,re doing a plug change on these bifuel systems, do everything at the same time because you won't want to take everything off again anytime soon.
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