2015 hemi 5.7l plugs

[EdGs]

Hello to all,

Just finished the spark plug change on my '15 Ram 1500 SLT 2wd. 106k miles on truck.

Bought NGK 92145 plugs (oem according to site) from RockAuto. The original plugs are numbered slightly different though.

The 92145 are numbered LZFR5CI-11, and the ones that were in the truck were ILZFR5E 11. That said, the truck feels more responsive. Hoping I didn't do something wrong.

On another note, I bought some permatex dielectric grease at my local NAPA. 3 oz. tube, the guy at the counter said he did a similar plug change and used almost a whole tube.

After finishing my job, I used 100 times less. I am wondering how you could use a whole 3 oz. tube.

The job took me about 3-4 hours, but wasnt too bad as I am not exceptionally fast. The Gearwrench magnetic spark plug tool was a blessing as was a top side creeper.

Sorry for the long read. Any thoughts or comments on the plug numbers or the quantity of dielectric grease needed? Thanks in advance.

 

[LeesEvoX]

Well first thing. If it aint broke. Dont fix it.

Second. I think I heard of a big scandal with chinese knockoff NGK plugs, and buying them on places like amazon. I'm sure you could find it with a quick google.

But anyway. If the truck runs good. Be happy with it. That gearwrench socket is the BEST tool to own if you drive a hemi lol.

Sent from my SM-G950U using Tapatalk

 

[Octane]

Hello to all,

Just finished the spark plug change on my '15 Ram 1500 SLT 2wd. 106k miles on truck.

Bought NGK 92145 plugs (oem according to site) from RockAuto. The original plugs are numbered slightly different though.

The 92145 are numbered LZFR5CI-11, and the ones that were in the truck were ILZFR5E 11. That said, the truck feels more responsive. Hoping I didn't do something wrong.

On another note, I bought some permatex dielectric grease at my local NAPA. 3 oz. tube, the guy at the counter said he did a similar plug change and used almost a whole tube.

After finishing my job, I used 100 times less. I am wondering how you could use a whole 3 oz. tube.

The job took me about 3-4 hours, but wasnt too bad as I am not exceptionally fast. The Gearwrench magnetic spark plug tool was a blessing as was a top side creeper.

Sorry for the long read. Any thoughts or comments on the plug numbers or the quantity of dielectric grease needed? Thanks in advance.

Sounds like you did alright.Most people overuse the antiseize or dielectric grease. I laid a shipping blanket on top my motor and laid on it as I changed my plugs.

 

[Burla]

Numbers don't mean anything to average people, you need to talk about the types of plugs. Nickle-copper, iridium, ruthenium, etc.

 

[Octane]

Numbers don't mean anything to average people, you need to talk about the types of plugs. Nickle-copper, iridium, ruthenium, etc.

I had a guy once that argued with me over my little 4 cylinder using 8 sparkplugs.He thought I was a loon. Lol. He said it was two valves per cylinder,not two plugs.But he was wrong altogether

 

[EdGs]

Numbers don't mean anything to average people, you need to talk about the types of plugs. Nickle-copper, iridium, ruthenium, etc.

Sorry, the 92145's are laser iridium. The NGK site showed them as OE for my 1500. I got no match for the numbers on the original plugs # ILZFRE 11, but did find a plug ZFRE 11, which is a standard plug. The originals were also marked with an IR. They held up very well. I don't think standard plugs would have

Makes me think that the originals were/are custom numbered.

Thank you all for a great site with lots of great info.

 

[BadHemi2014]

I used the same 92145 plugs, NGK iridium, in my '14 at about the same mileage. That was about 20K miles ago and zero issues, truck runs great. I confess I did not note the other #s on the plugs at the time.
I agree about the dielectric grease, less is more.

 

[Burla]

Dude I didnt even see that about dielectric, a whole tube, that is insane. The purpose of that is to STOP CURRENT. It cannot get on top of plug. It is to stop stray current, not even all that important, just kind of a smooth move then really do anything. You have to know how to use it or dont use it.

 

[Midknight]

Just did the same job this weekend and used the same plugs. You'll notice on NGK's site they are noted as OEM. My plug numbers matched when taking them out but I had them replaced by the dealer around 30k because of a bad gass situation and the Valero paid for it. For the dieletric grease I used a cotton swab and lightly coated the inside of the boot. Put a thin coat of antiseize on the threads and tightened them down. The magnetic swivel extention was required to get the job done for sure.

 

[EdGs]

I just ran a little dielectric grease around the ceramic with my finger, installed the plug, and a dab on the end of the boot.

By the time I did all 16, I probablY wiped more off my finger than was applied to the plugs and boots. Dude at the parts store must have slathered grease over every inch of the boots. Crazy.

I could have saved a few bucks with a smaller tube of grease, but not a big deal. I now have enough to last a couple lifetimes....lol.