re: sparkplugs

["Kevin Creason" <dmc4687@xxxx>]

Kevin Creason wrote:
> 
> John Hervey wrote:
> 
> > HR6DC
> > for the purest, HR7DC little hotter, HR8DCX,HR9DC,and HR10DCX the
> > hottest, all of these are $2.50ea and will be on the web site soon.
> 
What do you mean, "purest"?

Ok- let's use my driving for example: daily, on an average day 40-50 mph tops, 10 miles or less.
A couple times a week on the freeway up to 80, 15 miles total.
Should I be running hotter plugs? Especially if I am concerned about




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