I recently gave the car a tune-up and found out the following:
Old spark plug gapping: @ .072 New spark plug gapping: @ .054
Under the hood there is a label which states that the range should be between .052 - .056
I bought bosch platinum spark plugs and the gapping was: @ .062
what should I go by? How much does this affect the engine? Would this keep the engine from not idling properly?