Thread: Spark plugs

Not sure if the tr6’d are platinum but these engines hate platinum. Use iridium or copper.

I am not sure on the heat ranges.


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Originally Posted by markpa

Not sure if the tr6’d are platinum but these engines hate platinum. Use iridium or copper.

I am not sure on the heat ranges.


Sent from my iPhone using Tapatalk

I’m so sorry I missed your post!!! They are the recommended “most sold” plug that zzp stocks. The price was great, that’s why I used them. The same plug at our local Autozone is almost $2 more per plug. Ridiculous, it’s typical California bs.


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