Went to colder spark plugs.........and....

[GTGallop]

Am I nuts for thinking we had 100k mile platinum plugs in these trucks?

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[9zero1790]

Am I nuts for thinking we had 100k mile platinum plugs in these trucks?

not crazy, i was under the impression most newer cars and trucks came with long life plugs in them.

 

[Dgc333]

Am I nuts for thinking we had 100k mile platinum plugs in these trucks?

You are correct the owners manual recommends 100k plug change. Not sure you can really expect optimum performance and mileage to 100k but the engine will certainly run fine. A co-worker of mine ran the plugs in his Tundra to 275k miles. He brought them in. There was no visible center electrode it was worn down below the edge of the insulator. The ground electrodes were worn back to the bend. He thought the truck was running just fine but it was quite dramatic the improvement with new plugs.

BTW, the factory plugs are iridium not platinum. Iridium is more durable than platinum.

 

[GTGallop]

BTW, the factory plugs are iridium not platinum. Iridium is more durable than platinum.

I knew it was Expensive-ium. Just couldn't remember the metal. TKS!

 

[Superdannyboy]

So do I loosen this nut on each one, then I'm able to move the assembly?

 

[RangerPNW]

So do I loosen this nut on each one, then I'm able to move the assembly?

From what I remember on my Focus ST, yeah you undo that bolt and the coil pack pops right off

 

[Langwilliams]

Am I nuts for thinking we had 100k mile platinum plugs in these trucks?

That's what they say but you have people doing 3K oil changes too.

I've heard/read running an aftermarket tune shortens the life of the plugs. I'm tempted to pull one when I hit 30K this spring/summer just to look but now I'm thinking I'll wait until I notice a change in MPG or a stumble in the idle.

 

[Mustang2Ranger]

performance mods and towing shorten the life of the plug

towing is mentioned in the manual

 

[Superdannyboy]

performance mods and towing shorten the life of the plug

towing is mentioned in the manual

Well I definitely need to change mine from towing because I always haul ass!

 

[Dgc333]

That's what they say but you have people doing 3K oil changes too.

I've heard/read running an aftermarket tune shortens the life of the plugs. I'm tempted to pull one when I hit 30K this spring/summer just to look but now I'm thinking I'll wait until I notice a change in MPG or a stumble in the idle.

I had 58k on my 17 Ecoboost Mustang on the original plugs with the FP tune. I had pulled the plugs a little over 50k and they looked good, checked the gap and put them back in.

 

[Superdannyboy]

Out with these and in with ruthenium!

 

[seanellaz]

I'm not sure if this should be in the "Issues..." forum or here, but I found it interesting.

42,000+ miles on my '20 Ranger FX4 Lariat and the vast majority of it has been with an Eibach leveling kit, 265/70/18 Toyo Open Country AT3 tires, and Ford Performance tuner. Fuel mileage had been great but had dropped a little over the last 2 months,.... I was also driving short distances and less over the interstates like I do from March to October tho. I also felt that the truck just wasn't that fast and impressive like I'd remembered when I first bought it and especially like I remembered when I installed the Tuner.

I thought I'd try the colder NGK-95822 spark plugs, got them in finally, and we went to install them. What we found on the old spark plugs was that 2 of the 4 were definitely tightened past torque specs, and 2 of 4 had what I'd call a "flash over" where they looked burned via electricity on the porcelain portion like the boots possibly weren't tight. They weren't the 2 tight or 2 correctly torqued that I remember, so no correlation there, and the new spark plugs have antiseize and are torqued to ford's specs.

IMMEDIATELY upon leaving, the truck felt like I'd remembered when I first tuned it and my MPG's have been slowly climbing back up.

Guessing I'll see if I can get replacement boots for the coil packs and plan to replace them and these colder plugs around another 30k miles or so to be safe.

I always clean then Lube the boots w/ Silicon grease, thin coat rubbed inside and out. Makes them last longer, easier to remove, and helps keep the seal better than new. Smart you used antiseize on threads!

 

[NvrFinished]

I always clean then Lube the boots w/ Silicon grease, thin coat rubbed inside and out. Makes them last longer, easier to remove, and helps keep the seal better than new. Smart you used antiseize on threads!

It's important to be careful when using anti-seize, particularly when used on aluminum heads. The clamping load increases and is much greater when torqued to factory specs.

 

[Langwilliams]

Smart you used antiseize on threads!

I was looking for references to using it. It's not mentioned in any thread I read. I was thinking the irradiated plugs didn't need it.

 

[KJRR]

I've learned to pull the plugs before 20k miles and coat with anti-seize. Had some just about freeze to the head in a Chrysler T&C and they aren't easy to reach in a V6 to start.
At 75k when i went to check them, they were stuck. Took a week of PB Blaster and regular driving cycles and got them loose without stripping. Put the new ones in without issue. Never did have to get them out again.
Never used a torque wrench on plugs, never stripped one or had one come loose. Just don't overtighten.

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