F-150 Bifuel Spark Plugs

[CNGRocks]

I have a 2000 F-150 Bi-Fuel does anybody know which brand and type of spark plugs work best? Thanks

[BRodri]

Re: F-150 Bifuel Spark Plugs

cheapo deapo brand has always burned the fuel just fine for me. just go with autolite or delco. anything but the platinum those burn out so fast you might as well have them on a conveyor belt

[turbocohen]

Re: F-150 Bifuel Spark Plugs

I have a 2000 F-150 Bi-Fuel does anybody know which brand and type of spark plugs work best? Thanks

ngk iridium aint too bad. got 9000 hours on a generator no problem.

[cngbuck]

Re: F-150 Bifuel Spark Plugs

Cheap plugs burn out at around 30k miles. CNG requires more spark, so anything less than platnum wouldn't last as long. Unless, you enjoy changing sparkplugs everytime you turn around.

[j03j03]

Re: F-150 Bifuel Spark Plugs

Whichever you decied. Don't use champions. Bad things happen. But as long as you stay away from them you'll be fine.

[neongreen]

Re: F-150 Bifuel Spark Plugs

Amen to that! Avoid Champion at all costs. I run Motorcrafts in my ranger (not CNG, but turbo which requires a lot of spark) and they are really good as were the NGK iridiums I used to run.

[maxman]

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

[neongreen]

Re: F-150 Bifuel Spark Plugs

If you want a hotter spark, you just need an MSD or Accel coil pack which costs maybe $60 and takes 10 minutes to replace.

[cngdriver]

Re: F-150 Bifuel Spark Plugs

I use Iridium sparkplugs on my Cavalier and they seem like they last forever. I was talking with a CNG tech and he told me that is all they put in any of the vehicles they work on.

[darress]

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.