Thoughts on Ruthenium plugs?

just brought 2009 Tacoma V6 Black extended cab 2WD 180000 miles one owner.
Says he never has changed spark plugs ever. Thinking about NGK ruthenium plugs.
can't get enough info if it would work.

 

180,000 on original plugs? Wow, when you do the plug change try and post a pic of how they look, would be curious to see. As for the rutheniums I see no problem to give them a try. Some of the supercharged guys are using them and so far seem happy. As long as they are the proper heat range for your truck I see no problem besides paying a premium price. Also, how about other maintenance, did the previous owner keep up with that oil, filter, etc...?

 

THAT is the ticking bomb question.

Along with the frame condition if it was a salt country truck.

 

everything else is good and maintained

 

truck life has been in Texas

 

what does manufacture heat range mean? NGK is 6, denso is 20

 

It can be confusing, but different manufacturers have different numbers which represent the same heat range, so both of the above plugs will work.

 

Interesting that there are ruthenium plugs for the 2nd gen but not the 3rd. I'm guessing many people 2016+ and up probably haven't got to the change interval.

Have you had a chance to change the plugs yet?

 

Heat range conversion.
--> https://www.ngk.com/heat-range-conversion-chart-2
Ruthenium's will work but they have not been made for our specific application. They boot side connection is wonky. Several are running them as guinea pigs, with success so far.
I'm sticking to Iridiums for my S/C application until...