OK, I give up on this date coding.? On our front tires all I can find is DOT 4H93.? That doesn't match anything I can find on the coding and I've searched and searched.? Does anyone have a suggestion?? I read and reread the article in the forum library and nothing is fitting.? HELP!!!!!? What am I missing? I've told hubby I'm not going anywhere 'til I know the date of mnfg on all tires.