adding to spark plug confusion
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Dielectrically 5w30
Joined: Jan 2020
Posts: 13,263
Likes: 5,465
From: Oregon
Ok, I was still trying to figure out why this does not match what I saw.
I looked on NGK Part Finder, and for my 2018 3.5L they list the 97177 Laser Iridium (same as Rockauto).
For the 2020, they list 95927 Laser Iridium, and do not list the Ruthenium as an alternate.
Not sure why 2020 is showing different since it is the same engine...?
I looked on NGK Part Finder, and for my 2018 3.5L they list the 97177 Laser Iridium (same as Rockauto).
For the 2020, they list 95927 Laser Iridium, and do not list the Ruthenium as an alternate.
Not sure why 2020 is showing different since it is the same engine...?
Senior Member
Joined: Sep 2021
Posts: 410
Likes: 112
From: WI
Burlington SE corner. An easy drive away!
"Also, what's the difference between NGK97177 Laser Iridium vs. NGK90495Ruthenium HX High Ignitability?" The electrode is a bit different (the strap has a ruthenium tip that sticks out). Supposed to last longer. The lasting longer makes no difference to me as I replace plugs at 20000 miles just to check the engine condition.I have a tuned 2.7 and use NGK 6510 LTR71X-11 iridium plugs, a step colder than listed plugs.
I will not say better, just more consistent in plug numbering, NGK is a Ford supplier. KM
"Also, what's the difference between NGK97177 Laser Iridium vs. NGK90495Ruthenium HX High Ignitability?" The electrode is a bit different (the strap has a ruthenium tip that sticks out). Supposed to last longer. The lasting longer makes no difference to me as I replace plugs at 20000 miles just to check the engine condition.I have a tuned 2.7 and use NGK 6510 LTR71X-11 iridium plugs, a step colder than listed plugs.
I will not say better, just more consistent in plug numbering, NGK is a Ford supplier. KM
I definitely want to do plugs. My '20 3.5 EB is 100% STOCK. So, then, what NGK plugs - NGK97177 Laser Iridium or NGK90495Ruthenium HX High Ignitability? Seeing as NGK is a little better plug than OEM
Senior Member
Joined: Sep 2021
Posts: 410
Likes: 112
From: WI
Dielectrically 5w30
Joined: Jan 2020
Posts: 13,263
Likes: 5,465
From: Oregon
Senior Member
Joined: Feb 2018
Posts: 3,966
Likes: 2,929
From: SE Wisconsin
Ahh yeah, you're not far from me at all! I was doing a search earlier, and I saw I think it was 2021 or 2020 where a shop only charged you $400 for a coolant swap (to yellow), trans flush and filter and something else. What shop is that? I'm almost to 30K miles and soon I'll be doing fluids.
I definitely want to do plugs. My '20 3.5 EB is 100% STOCK. So, then, what NGK plugs - NGK97177 Laser Iridium or NGK90495Ruthenium HX High Ignitability? Seeing as NGK is a little better plug than OEM
I definitely want to do plugs. My '20 3.5 EB is 100% STOCK. So, then, what NGK plugs - NGK97177 Laser Iridium or NGK90495Ruthenium HX High Ignitability? Seeing as NGK is a little better plug than OEM
PM would not take a photo of the bill, so here it is,
I did get Ford Yellow P-Oat coolant not green as listed.
Back to sparkers! KM
Last edited by 2017bluetruck; Oct 28, 2022 at 05:47 PM.