Kind of an old thread but I need help, my previous vehicle I had I cleaned ALL the time and put tire dressing on (worked at a car wash so all free!) However my side walls began cracking like dry rot almost but they were only 6 months old maybe...noow my ep tires are doing it too but I don't clean her as much now that I don't work there. Is there a safe tire shine that still looks good? Iv used mcguires, mothers, armoral and. W.e they had at the car wash...thanks