i know that platinum plugs run hotter and they are a no no for supercharged or turbo engines. mark Adam wrote: > Can anyone who has used these plugs give me their opinion of them? I > am doing a tune-up soon and am thinking of using these plugs. Also > what heat rating do you suggest for an engine with 75,000 miles on > it, is it different for the platinum plugs? > > thanks for all input! > > Adam > > To address comments privately to the moderating team, please address: > moderators@xxxx > > To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnews > > Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/