Post by
gwoods »
https://forums.nicoclub.com/gwoods-u72022.html
Mon Feb 09, 2009 9:16 pm
IMO Iridium > Platinum
Iridium conducts electricity betterIridum holds the factory gap longerIridum wears longer
I normally would change plugs around 40k I'm planning a 60k change since the G has Iridium.
In a stock motor the factory plug works the best 99% of the time. The only time I would consider a different plug is if you are running nitrous,turbo or super charges and want a plug with a colder range then your current.