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NGK Ruthenium HX vs. NGK Laser Iridium
Can't find any comparisons between these two plugs, apparently Ruthenium is better for burning a bit more efficiently and also supposedly lasts even longer than the 100,000 plus range. So of anyone has used Ruthenium and compare them to the Laser Iridiums it'd be highly helpful!- wordev
- Thread
- hemi spark plugs ngk spark plug replacement spark plugs spark plugs change
- Replies: 4
- Forum: Engine & Performance
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ORIGINAL Iridium Plugs at 223,000 Miles
At about 100,000 miles I was thinking of replacing plugs in my 2014 5.7 Hemi, so I removed both from cylinder #2 (because it was easiest to reach) for inspection. They still looked brand-new, so I put them back in and stopped worrying about plugs. At 223,000 miles, I’m getting a recurring...- Funkychateau
- Thread
- hemi iridium ngk plugs
- Replies: 24
- Forum: Engine & Performance
