Re: sparkplugs

["John Hervey" <dherv10@xxxx>]

Walter and Group, Bosch told me today that the Plat + 4 is a medium 
heat range plug = to the a HR8 or HR9. The HR6 as the car comes with 
is the coldest burning plug for this series and for short drives a 
hotter plug would burn better. That's why I ordered in 3 sets of ea 
range to run my test with them, but as robert has pointed out with 
his experiment it sounds like Plat + 4 is the way to go. As to 
copper, silver, or platinum, i think is just resistance factor for 
more critical applications that we don't have. What do yall think.
John
www.specialTauto.com

--- In dmcnews@xxxxxxxxxxx, "Walter" <Whalt@xxxx> wrote:
> So which plug is better for the Delorean? Bosch Coppertip, Bosch 
Platinum+4
> or Bosch w/silver electrode?