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Interesting about you guys take on Autolites. I remember when damn near everything came with Champions, including Fords. As to platinum, unless the engine/ingition requires them as original equipment, they be a waste of money. Best cheap mileage and power pick up, is to change out the truck plugs with the extended tip plugs that came in the car motors.
I have been running bosch super plus in my motor, I have some auto light 33's and motor craft bf 22's and 32's I'm going to try the next test and tune.
My truck is used mainly for towing. I have tried several different types and makes over the last 30 years and the plug that seems to work best for me is the AC R44TS.