[poncherello]

My Lib will be approaching the 30K mark soon, read up to use only the copper plugs and to make sure they are gapped correctly. Any suggestions as to which plug manufacturer to stick with?

 

[MoparNorm]

Most late model Chrysler V-6's came with NGK, Champion, or Denso.
I use Bosch or the "Mopar" brand, which can be re-labeled from any of the first three mentioned.

 

[stevenspeaking]

The OE plug spzfr6f11g is a NGK nickel spark plug.

Steven

 

[ralph.jones]

My '10 had NGK's and where replaced with the same. Auto parts stores all said that OEM was platnium.... :lol: