|
+4 worked ok for me
FWIW I have had good results with the Platinum +4s in my 300E.
No hot weather problems during this very hot summer.
This is not to dispute any recommendations, just a data point...
Gaps on new plugs (that require gapping) can vary significantly, and really should be checked.
__________________
1986 300E 5-Speed 240k mi.
|