Which Plugs? NGK or Denso?
Thread Starter
MBWorld Fanatic!
Joined: Jun 2014
Posts: 1,086
Likes: 443
From: Melbourne, Australia
2010 ML550 VIN WDC1641722A564750, 2010 B180
Which Plugs? NGK or Denso?
My M273 has 110k miles. It will soon be time for new plugs and I'm seeing NGK platinum PLKR7A (what I have now) as well as Denso Iridium IXUH22 and Denso Iridum Tough VXUH22.
Any thoughts on these? I'm not expecting any great difference in performance, unless people suggest otherwise. Right now, I can buy the NGK's and the Denso's at essentially the same price. Anyone know what the 'tough' ones are? Car runs beautifully and does not consume oil. Any experiences and suggestions welcome.
Any thoughts on these? I'm not expecting any great difference in performance, unless people suggest otherwise. Right now, I can buy the NGK's and the Denso's at essentially the same price. Anyone know what the 'tough' ones are? Car runs beautifully and does not consume oil. Any experiences and suggestions welcome.
Senior Member
Joined: Oct 2023
Posts: 473
Likes: 241
From: New Hampshire
ML 63 AMG
My M273 has 110k miles. It will soon be time for new plugs and I'm seeing NGK platinum PLKR7A (what I have now) as well as Denso Iridium IXUH22 and Denso Iridum Tough VXUH22.
Any thoughts on these? I'm not expecting any great difference in performance, unless people suggest otherwise. Right now, I can buy the NGK's and the Denso's at essentially the same price. Anyone know what the 'tough' ones are? Car runs beautifully and does not consume oil. Any experiences and suggestions welcome.
Any thoughts on these? I'm not expecting any great difference in performance, unless people suggest otherwise. Right now, I can buy the NGK's and the Denso's at essentially the same price. Anyone know what the 'tough' ones are? Car runs beautifully and does not consume oil. Any experiences and suggestions welcome.
Thread Starter
MBWorld Fanatic!
Joined: Jun 2014
Posts: 1,086
Likes: 443
From: Melbourne, Australia
2010 ML550 VIN WDC1641722A564750, 2010 B180
Senior Member
Joined: Oct 2023
Posts: 473
Likes: 241
From: New Hampshire
ML 63 AMG
Thanks. Its interesting that you can now get iridium plugs at the same (if not lower) price at platinums, noting they're on sale ATM. I'm not expecting anything other than a longer service life out of the Iridiums but was interested to see what the experiences of others were.
