FYI the Bosch identifier for the single electrode platinum plug is HR6DP, I should know as I still have many sets left over from a case I bought about 7 years ago. I wouldn't even give these away because they perform so poorly. I cant explain what or why it happens with these specific plugs but I have installed them on both 5-speeds and automatics and found a loss of acceleration and poor idle. I found the standard Bosch silver is a far superior plug for the Delorean when compared with the platinum plug. Additionally, I installed the platinum plugs with OEM ignition components. Sean --- In dmcnews@xxxxxxxxxxxxxxx, "Tom Niemczewski" <dmctom@...> wrote: > > What seems to be the problem with the single electrode Bosch platinum plugs? > Can you tell us what the bad results are? > I keep hearing this rumor that those plugs are bad but no one can ever > explain why. And the reason I ask is because those are the plugs recommended > by the engine manufacturer! Check out the owners manual, page 38, middle > column under Electrical system. It says the following: Spark Plugs Bosch > HR6DS (Platinum Tipped). And those are the single electrode plugs. >From my > experience single electrode Bosch platinum plugs give the best results in To address comments privately to the moderating team, please address: moderators@xxxxxxxxxxx For more info on the list, tech articles, cars for sale see www.dmcnews.com To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnews Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/dmcnews/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/dmcnews/join (Yahoo! ID required) <*> To change settings via email: mailto:dmcnews-digest@xxxxxxxxxxxxxxx mailto:dmcnews-fullfeatured@xxxxxxxxxxxxxxx <*> To unsubscribe from this group, send an email to: dmcnews-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/