I want to repalce the plugs in my 1990 Volvo 740 Turbo wagon. The car came with Motorcraft spark plugs...well I know there is better. I have always ran the bosch supers in the Volvo and they have done great. My mechainc was trying to talk me into a set of platium plus four. Well they are twice the price and I have read various reviews on them. I'm tempted to stick with the norm...but maybe I shouldn't be so stuck to what I know. This same mechanic said that he thought even the NGK plugs were better then my bosch supers. Seems kind of weird to run a japanese plug in a bosch system. Anyway tell me what you think. Thanks.