Di pwede sa everest ang nawasa juice nagi-skip ang wiper. I use the blue concentrate from handyman, forgot the brand. But since i started using it wala na yung judder ng wiper. 1 liter bottle makes 10 liters of mixed fluid.
Is it Waxco? Yung nabibili ko is hindi 1 liter though. Just a small bottle for 75 pesos. Blue conentrate din sya.