NGK Ruthenium Spark Plugs

[Frenchy]

Update: put NGK 94374 plugs in. They are confirmed fitment for the 2019 Ranger. Still misfires/check engine light. Old stock plugs put back in and now it’s running smooth again. I did check gap of the NGKs and it looks good.

I got another NGK plug because they didn’t have the ford plugs in stock. My truck really does not like NGK apparently…

I wont argue that NGK is a good brand and makes many spark plugs for various manufacturers. But unless the manufacturer says to run them it's best to run OEM(even if it's rebranded)

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[Progeny2021]

Update: put NGK 94374 plugs in. They are confirmed fitment for the 2019 Ranger. Still misfires/check engine light. Old stock plugs put back in and now it’s running smooth again. I did check gap of the NGKs and it looks good.

I got another NGK plug because they didn’t have the ford plugs in stock. My truck really does not like NGK apparently…

Hmmm....

 

[Progeny2021]

10 more RWHP......Guaranteed!!!!!!

 

[Mr Adventures]

I wont argue that NGK is a good brand and makes many spark plugs for various manufacturers. But unless the manufacturer says to run them it's best to run OEM(even if it's rebranded)

I am certainly figuring that out!! Motor craft plugs going in next…
On the plus side I’m super efficient at changing these things out now

 

[Mr Adventures]

Update: changed to Motorcraft plugs. All is good now!

 

[The EG]

I can relate to this, had a misfire and only spark plug available at Canadian Tire was E3.74 by E3. Noticed that gas was being used up more and the engine felt different. Fortunately I was due to an oil change and was recommended to stick with Motorcraft OEM, since doing that it’s so much better and fuel mileage is better now. For spark plugs, I’ll say stick with OEM.

 

[Racket]

Dredging up this thread since the Ruthenium plugs came up on other forums like BMW and AMG. Those guys have more money than sense but I noticed what is marketed to them are coil pack upgrades along with the plugs.

The plug manufacturer clearly sunk a lot of money into R&D along with manufacturing so you wonder what is the real world failure in these?

What I gather is that it takes more energy to fire this material and I looked to see if heat range or a non-standard gap for turbocharged motors was recommended, but no consensus.

The need for higher powered coil packs makes it's way into debates but my recollection is that only Accel/MSD makes them for our motors and they are the same - with sketchy results. Maybe it's because of several things but I'm not in a position to explore those variables. Curious how this could be applied to tuning for real world applications and a variety of fuels.

Maybe somewhere off in the future the Focus or Mustang crowd will get some backing from the manufacturer to advance their product.

For the majority of us it seems OEM remains the way to go - no fuss, no muss.

If Ford were to develop a 'performance' kit maybe.

 

[Loweredon33s]

Dredging up this thread since the Ruthenium plugs came up on other forums like BMW and AMG. Those guys have more money than sense but I noticed what is marketed to them are coil pack upgrades along with the plugs.

The plug manufacturer clearly sunk a lot of money into R&D along with manufacturing so you wonder what is the real world failure in these?

What I gather is that it takes more energy to fire this material and I looked to see if heat range or a non-standard gap for turbocharged motors was recommended, but no consensus.

The need for higher powered coil packs makes it's way into debates but my recollection is that only Accel/MSD makes them for our motors and they are the same - with sketchy results. Maybe it's because of several things but I'm not in a position to explore those variables. Curious how this could be applied to tuning for real world applications and a variety of fuels.

Maybe somewhere off in the future the Focus or Mustang crowd will get some backing from the manufacturer to advance their product.

For the majority of us it seems OEM remains the way to go - no fuss, no muss.

I’ve had 95605 NGK for a while now with no problems at all. I’m an advocate for stock coils as I’ve seen aftermarket ones being the cause of problems on coyotes pretty much every time they are used. I know they are different engines so take it for what it’s worth there. Maybe I don’t have issues because my gap is super tight? Idk.

 

[RCMUSTANG]

Been running these plugs and MSD coils on my 2.7 Fusion with no issues. Accel coils on the Ranger with no issues.

 

[Racket]

After reading up on these - and the advocates for going colder range plugs - I suspect standard temp range plugs+stock FoMoCo coils are fine, whether Ruthenium or Ford plugs. I'd bet double/triple checking the gap as @Loweredon33s says is the critical step. Now I need to suss out how to prevent plugs from corroding into the head. Granted I have the engine cover but it sounds like it doesn't provide #4 with sufficient protection.

 

[Beez]

I could be (and am likely) wrong, but I believe the NGK 95605 is the 1 step colder recommended plug to the NGK 90495. It's also recommended that they be gaped at 0.26? - Can anyone verify is this info is accurate?

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