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what kind of spark plugs should i use for a 2.9L v6 motor

which spark plugs are the absolute best for a 2.9l v6 motor

  • copper

    Votes: 3 50.0%
  • platinum

    Votes: 0 0.0%
  • double platinum

    Votes: 0 0.0%
  • iridium

    Votes: 1 16.7%
  • double iridium?

    Votes: 1 16.7%
  • other..

    Votes: 1 16.7%

  • Total voters
    6

stamina

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Ford Ranger
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4.0 V6
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265/75/r16
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i honestly just want to know which plugs are the absolute best ones that i could possibly use for this old motor, it’s a 1990 2.9l auto 4wd. not afraid to shell out a little extra just want to know which ones are the best of the best for this lil v6💪🏼💯
 


RonD

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Single platinum or iridium tip will last longer

Motorcraft AWSF-42C was spec and tend to work best
Gap at 0.044"
 

AndyB.

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Motocraft AWSF42P. Platinum version of original plug, can be found ridiculously cheap on eBay:

 

rusty ol ranger

Im a Jeep guy now.
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Michigan
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1987
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Ford
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2.9 V6
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177 CID
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2WD / 4WD
2WD
My credo
A legend to the old man, a hero to the child...
Just run the motorcraft copper cores. The ignition on these trucks arent "hot" enough to make any good use of anything fancier then that.

You can run quadruple platnium 4 electrode magic dust whatever whatever, wont hurt nothing but your wallet.
 

stamina

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Location
Wilmington, NC
Vehicle Year
1990
Make / Model
Ford Ranger
Engine Type
4.0 V6
Transmission
Manual
2WD / 4WD
4WD
Total Lift
3” suspension
Tire Size
265/75/r16
My credo
built her in a storage unit
You can run quadruple platnium 4 electrode magic dust whatever whatever, wont hurt nothing but your wallet.
LMFAOO had a great laugh soon as i woke up😭😭thanks for your knowledge bro
 

fastpakr

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The advantage to platinum or iridium is in longevity. If they're not hard to get to, then copper is just fine. If the job is a pain and you'd rather not repeat it for the rest of the truck's life, consider spending a few extra dollars.
 

ecgreen

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Dunbarton NH
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1989
Make / Model
Ford Bronco II
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2WD / 4WD
4WD
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3"
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33
Expensive ones. I have more trouble trying to save money with plugs then I care to admit to.
 

dirtymike

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Location
knoxville TN
Vehicle Year
1987
Make / Model
Ranger lwb
Engine Type
2.9 V6
Transmission
Manual
2WD / 4WD
4WD
Total Lift
1 inch spacers
Tire Size
P23575R15
My credo
Do unto others then Split-probasti me et chognuisti me
motor craft SP (486 or 419). run these for a long time.
 

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