As long as you are asking here are my recomendations: Spark Plug-Bosch Super # 7566 HR 6 DC (copper) Do NOT use the HR 6 DP. This is the platinum one and we have seen them fail prematurely. Brake & Clutch Fluid-Castrol GTLMA DOT 4 Seems to be the most compatible with the type of rubber used in the system. MUST be changed every 2 years. According to my X-ref the A/C equivilent is a RL44LTS6 Which is close to your RL42, the heat range is slightly different. IMHO as long as you can obtain the Bosch plug it is the prefered choice but an A/C RL44LTS6 should work. Do NOT use DOT 3. It's boiling point is lower than DOT 4 and not recomended for disc brakes. David Teitelbaum vin 10757 --- In dmcnews@xxxxxxxxxxxxxxx, "T. Madsen" <fishheadlouie@...> wrote: > > Help fellow De Lorean owners. > > I am having trouble choosing spark plugs. 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/