Originally Posted by
Scott Fisher
Previous to that (last time I was running novarossi engines) it was just the opposite. The regular plugs were junk and you had to buy the Ultras.
I have used both.
Regular plugs and Ultras.
Ultra plugs last a lifetime, but those with the black body and golden tip.
If your ultra plug has a silver body, then it will go bad very fast.
I am currently using the regular ones and haven't had any major issue with them.