I dis-like Platinum tipped spark plugs. I dis-like Bosch spark plugs
also. I use 4 brands of spark plugs: AC-Delco, Autolite, Accel & Champion.
AC-Delco's for MOST Stock GM Vehicals. Autolite's in Fords. Accel &
Champions in Modified Vehicals.
If a car came from the maker with platinum or platinum tipped spark
plugs, I replace them with standard core & tipped spark plugs. I do
aviod the screw on terminal cap spark plugs.
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